Mailing List Archive

[printk A-A deadlock] possible reason: unannotated irqs-on
Greetings,

I got the below oops and the first bad commit is

commit 0c2e1aacdc87c3ecf16cf26e8b3476c6203d03e2
Author: Jan Kara <jack@suse.cz>
Date: Sat Mar 2 00:02:38 2013 +0000

printk: avoid softlockups in console_unlock()

A CPU can be caught in console_unlock() for a long time (tens of seconds
are reported by our customers) when other CPUs are using printk heavily
and serial console makes printing slow. Despite serial console drivers
are calling touch_nmi_watchdog() this triggers softlockup warnings because
interrupts are effectively disabled for the whole time printing takes
place. Thus IPIs cannot be processed and other CPUs get stuck spinning in
calls like smp_call_function_many(). Also RCU eventually starts reporting
lockups.

In my artifical testing I also managed to trigger a situation when disk
disappeared from the system apparently because commands to / from it could
not be delivered for long enough. This is why just silencing watchdogs
isn't a reliable solution to the problem.

One part of fixing the issue is changing vprintk_emit() to call
console_unlock() with interrupts enabled (this isn't perfect as printk()
itself can be called with interrupts disabled but it improves the
situation in lots of cases). Another part is limiting the time we spend
in console_unlock() printing loop to watchdog_thresh() / 4. Then we
release console_sem and wait for watchdog_thresh() / 4 to give a chance to
other printk() users to get the semaphore and start printing. If printk()
was called with interrupts enabled, it also gives CPU a chance to process
blocked interrupts. Then we recheck if there's still anything to print,
try to grab console_sem again and if we succeed, we go on with printing.

Signed-off-by: Jan Kara <jack@suse.cz>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

[ 0.000000] A-A deadlock:possible reason: unannotated irqs-on.
[ 0.000000] irq event stamp: 378
[ 0.000000] hardirqs last enabled at (377): [<ffffffff810bb15c>] debug_check_no_locks_freed+0x1f8/0x224
[ 0.000000] hardirqs last disabled at (378): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
[ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
[ 0.000000] softirqs last disabled at (0): [< (null)>] (null)

git bisect start 1eea8bb261e8d43492c91d516d97cf96cdac7a3b 19f949f52599ba7c3f67a5897ac6be14bfcb1200 --
git bisect good 09bca78e81d0ba702b601e09fd887e20c32fc7af # 1000 2013-03-02 15:21:54 block: restore /proc/partitions to not display non-partitionable removable devices
git bisect good b4a2adc2b273b37274b5a74fc0995927f44fe773 # 1001 2013-03-02 18:55:30 mm/dmapool.c: fix null dev in dma_pool_create()
git bisect bad 0c2e1aacdc87c3ecf16cf26e8b3476c6203d03e2 # 0 2013-03-02 18:59:08 printk: avoid softlockups in console_unlock()
git bisect good 641feee3e6eeb680efcf5c6f625bb2cb4fcfc52c # 1000 2013-03-02 22:33:52 early_printk: consolidate random copies of identical code
git bisect good 8a7d64347f4144f2e93745ba971809ca843887ae # 1002 2013-03-03 02:13:19 include/linux/fs.h: disable preempt when acquire i_size_seqcount write lock
git bisect good 6e1078c01b2e145140e7e8ce341c427b8be1eec3 # 1000 2013-03-03 05:52:33 kernel/smp.c: cleanups
git bisect good 6e1078c01b2e145140e7e8ce341c427b8be1eec3 # 3005 2013-03-03 16:30:52 kernel/smp.c: cleanups
git bisect bad 67e51ff72caec0de0c3673303c0e7ee935ef80d8 # 0 2013-03-03 16:34:47 add a refcount check in dput()
git bisect good 52efcaa3b551117572315f73c5e787f65c734493 # 3002 2013-03-04 02:57:11 Revert "printk: avoid softlockups in console_unlock()"
git bisect good 106edea2fe051df65a1a6231e9ffa2876cc391cc # 3001 2013-03-04 13:34:26 Add linux-next specific files for 20130301

Thanks,
Fengguang
Re: [printk A-A deadlock] possible reason: unannotated irqs-on [ In reply to ]
On Mon 04-03-13 13:42:54, Wu Fengguang wrote:
> Greetings,
>
> I got the below oops and the first bad commit is
Thanks for report! BTW, I didn't see any oops in the log, just complaints
from lockdep about a bug in irq handling (which seems to be just a problem
with lockdep turning on-off in vprintk_emit() which I broke).

Honza

> commit 0c2e1aacdc87c3ecf16cf26e8b3476c6203d03e2
> Author: Jan Kara <jack@suse.cz>
> Date: Sat Mar 2 00:02:38 2013 +0000
>
> printk: avoid softlockups in console_unlock()
>
> A CPU can be caught in console_unlock() for a long time (tens of seconds
> are reported by our customers) when other CPUs are using printk heavily
> and serial console makes printing slow. Despite serial console drivers
> are calling touch_nmi_watchdog() this triggers softlockup warnings because
> interrupts are effectively disabled for the whole time printing takes
> place. Thus IPIs cannot be processed and other CPUs get stuck spinning in
> calls like smp_call_function_many(). Also RCU eventually starts reporting
> lockups.
>
> In my artifical testing I also managed to trigger a situation when disk
> disappeared from the system apparently because commands to / from it could
> not be delivered for long enough. This is why just silencing watchdogs
> isn't a reliable solution to the problem.
>
> One part of fixing the issue is changing vprintk_emit() to call
> console_unlock() with interrupts enabled (this isn't perfect as printk()
> itself can be called with interrupts disabled but it improves the
> situation in lots of cases). Another part is limiting the time we spend
> in console_unlock() printing loop to watchdog_thresh() / 4. Then we
> release console_sem and wait for watchdog_thresh() / 4 to give a chance to
> other printk() users to get the semaphore and start printing. If printk()
> was called with interrupts enabled, it also gives CPU a chance to process
> blocked interrupts. Then we recheck if there's still anything to print,
> try to grab console_sem again and if we succeed, we go on with printing.
>
> Signed-off-by: Jan Kara <jack@suse.cz>
> Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
> Cc: Steven Rostedt <rostedt@goodmis.org>
> Cc: Ingo Molnar <mingo@elte.hu>
> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
>
> [ 0.000000] A-A deadlock:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 378
> [ 0.000000] hardirqs last enabled at (377): [<ffffffff810bb15c>] debug_check_no_locks_freed+0x1f8/0x224
> [ 0.000000] hardirqs last disabled at (378): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
>
> git bisect start 1eea8bb261e8d43492c91d516d97cf96cdac7a3b 19f949f52599ba7c3f67a5897ac6be14bfcb1200 --
> git bisect good 09bca78e81d0ba702b601e09fd887e20c32fc7af # 1000 2013-03-02 15:21:54 block: restore /proc/partitions to not display non-partitionable removable devices
> git bisect good b4a2adc2b273b37274b5a74fc0995927f44fe773 # 1001 2013-03-02 18:55:30 mm/dmapool.c: fix null dev in dma_pool_create()
> git bisect bad 0c2e1aacdc87c3ecf16cf26e8b3476c6203d03e2 # 0 2013-03-02 18:59:08 printk: avoid softlockups in console_unlock()
> git bisect good 641feee3e6eeb680efcf5c6f625bb2cb4fcfc52c # 1000 2013-03-02 22:33:52 early_printk: consolidate random copies of identical code
> git bisect good 8a7d64347f4144f2e93745ba971809ca843887ae # 1002 2013-03-03 02:13:19 include/linux/fs.h: disable preempt when acquire i_size_seqcount write lock
> git bisect good 6e1078c01b2e145140e7e8ce341c427b8be1eec3 # 1000 2013-03-03 05:52:33 kernel/smp.c: cleanups
> git bisect good 6e1078c01b2e145140e7e8ce341c427b8be1eec3 # 3005 2013-03-03 16:30:52 kernel/smp.c: cleanups
> git bisect bad 67e51ff72caec0de0c3673303c0e7ee935ef80d8 # 0 2013-03-03 16:34:47 add a refcount check in dput()
> git bisect good 52efcaa3b551117572315f73c5e787f65c734493 # 3002 2013-03-04 02:57:11 Revert "printk: avoid softlockups in console_unlock()"
> git bisect good 106edea2fe051df65a1a6231e9ffa2876cc391cc # 3001 2013-03-04 13:34:26 Add linux-next specific files for 20130301
>
> Thanks,
> Fengguang

> [ 0.000000] Linux version 3.8.0-mm1-00066-g1eea8bb (kbuild@snb) (gcc version 4.7.2 (Debian 4.7.2-4) ) #252 SMP PREEMPT Sat Mar 2 09:21:27 CST 2013
> [ 0.000000] Command line: hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 branch=mmotm/master log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=vmlinuz-2013-03-02-09-22-20-mmotm:master:67e51ff72caec0de0c3673303c0e7ee935ef80d8-1eea8bb261e8d43492c91d516d97cf96cdac7a3b-x86_64-randconfig-s007-0225-1-waimea BOOT_IMAGE=/kernel/x86_64-randconfig-s007-0225/1eea8bb261e8d43492c91d516d97cf96cdac7a3b/vmlinuz-3.8.0-mm1-00066-g1eea8bb
> [ 0.000000] e820: BIOS-provided physical RAM map:
> [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x0000000000093bff] usable
> [ 0.000000] BIOS-e820: [mem 0x0000000000093c00-0x000000000009ffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000000fffdfff] usable
> [ 0.000000] BIOS-e820: [mem 0x000000000fffe000-0x000000000fffffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
> [ 0.000000] debug: ignoring loglevel setting.
> [ 0.000000] NX (Execute Disable) protection: active
> [ 0.000000] Hypervisor detected: KVM
> [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
> [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
> [ 0.000000] No AGP bridge found
> [ 0.000000] e820: last_pfn = 0xfffe max_arch_pfn = 0x400000000
> [ 0.000000] Scan for SMP in [mem 0x00000000-0x000003ff]
> [ 0.000000] Scan for SMP in [mem 0x0009fc00-0x0009ffff]
> [ 0.000000] Scan for SMP in [mem 0x000f0000-0x000fffff]
> [ 0.000000] found SMP MP-table at [mem 0x000fdab0-0x000fdabf] mapped at [ffff8800000fdab0]
> [ 0.000000] mpc: fdac0-fdbe4
> [ 0.000000] Base memory trampoline at [ffff88000008d000] 8d000 size 24576
> [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
> [ 0.000000] [mem 0x00000000-0x000fffff] page 4k
> [ 0.000000] BRK [0x02986000, 0x02986fff] PGTABLE
> [ 0.000000] BRK [0x02987000, 0x02987fff] PGTABLE
> [ 0.000000] BRK [0x02988000, 0x02988fff] PGTABLE
> [ 0.000000] init_memory_mapping: [mem 0x0e800000-0x0e8d5fff]
> [ 0.000000] [mem 0x0e800000-0x0e8d5fff] page 4k
> [ 0.000000] BRK [0x02989000, 0x02989fff] PGTABLE
> [ 0.000000] init_memory_mapping: [mem 0x0c000000-0x0e7fffff]
> [ 0.000000] [mem 0x0c000000-0x0e7fffff] page 4k
> [ 0.000000] BRK [0x0298a000, 0x0298afff] PGTABLE
> [ 0.000000] init_memory_mapping: [mem 0x00100000-0x0bffffff]
> [ 0.000000] [mem 0x00100000-0x0bffffff] page 4k
> [ 0.000000] init_memory_mapping: [mem 0x0e8d6000-0x0fffdfff]
> [ 0.000000] [mem 0x0e8d6000-0x0fffdfff] page 4k
> [ 0.000000] log_buf_len: 8388608
> [ 0.000000] early log buf free: 128104(97%)
> [ 0.000000] RAMDISK: [mem 0x0e8d6000-0x0ffeffff]
> [ 0.000000] ACPI: RSDP 00000000000fd920 00014 (v00 BOCHS )
> [ 0.000000] ACPI: RSDT 000000000fffe550 00038 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001)
> [ 0.000000] ACPI: FACP 000000000fffff80 00074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001)
> [ 0.000000] ACPI: DSDT 000000000fffe590 01121 (v01 BXPC BXDSDT 00000001 INTL 20100528)
> [ 0.000000] ACPI: FACS 000000000fffff40 00040
> [ 0.000000] ACPI: SSDT 000000000ffffe40 000FF (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001)
> [ 0.000000] ACPI: APIC 000000000ffffd50 00080 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001)
> [ 0.000000] ACPI: HPET 000000000ffffd10 00038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001)
> [ 0.000000] ACPI: SSDT 000000000ffff6c0 00644 (v01 BXPC BXSSDTPC 00000001 INTL 20100528)
> [ 0.000000] ACPI: Local APIC address 0xfee00000
> [ 0.000000] mapped APIC to ffffffffff5fa000 ( fee00000)
> [ 0.000000] No NUMA configuration found
> [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000000fffdfff]
> [ 0.000000] Initmem setup node 0 [mem 0x00000000-0x0fffdfff]
> [ 0.000000] NODE_DATA [mem 0x0fff9000-0x0fffdfff]
> [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
> [ 0.000000] kvm-clock: cpu 0, msr 0:fff8001, boot clock
> [ 0.000000] Zone ranges:
> [ 0.000000] DMA [mem 0x00001000-0x00ffffff]
> [ 0.000000] DMA32 [mem 0x01000000-0xffffffff]
> [ 0.000000] Normal empty
> [ 0.000000] Movable zone start for each node
> [ 0.000000] Early memory node ranges
> [ 0.000000] node 0: [mem 0x00001000-0x00092fff]
> [ 0.000000] node 0: [mem 0x00100000-0x0fffdfff]
> [ 0.000000] On node 0 totalpages: 65424
> [ 0.000000] DMA zone: 64 pages used for memmap
> [ 0.000000] DMA zone: 21 pages reserved
> [ 0.000000] DMA zone: 3986 pages, LIFO batch:0
> [ 0.000000] DMA32 zone: 960 pages used for memmap
> [ 0.000000] DMA32 zone: 61438 pages, LIFO batch:15
> [ 0.000000] ACPI: PM-Timer IO Port: 0xb008
> [ 0.000000] ACPI: Local APIC address 0xfee00000
> [ 0.000000] mapped APIC to ffffffffff5fa000 ( fee00000)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
> [ 0.000000] ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
> [ 0.000000] IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 00, APIC ID 2, APIC INT 02
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
> [ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 05, APIC ID 2, APIC INT 05
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> [ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 09, APIC ID 2, APIC INT 09
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
> [ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0a, APIC ID 2, APIC INT 0a
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
> [ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0b, APIC ID 2, APIC INT 0b
> [ 0.000000] ACPI: IRQ0 used by override.
> [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 01, APIC ID 2, APIC INT 01
> [ 0.000000] ACPI: IRQ2 used by override.
> [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 03, APIC ID 2, APIC INT 03
> [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 04, APIC ID 2, APIC INT 04
> [ 0.000000] ACPI: IRQ5 used by override.
> [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 06, APIC ID 2, APIC INT 06
> [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 07, APIC ID 2, APIC INT 07
> [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 08, APIC ID 2, APIC INT 08
> [ 0.000000] ACPI: IRQ9 used by override.
> [ 0.000000] ACPI: IRQ10 used by override.
> [ 0.000000] ACPI: IRQ11 used by override.
> [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0c, APIC ID 2, APIC INT 0c
> [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0d, APIC ID 2, APIC INT 0d
> [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0e, APIC ID 2, APIC INT 0e
> [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0f, APIC ID 2, APIC INT 0f
> [ 0.000000] Using ACPI (MADT) for SMP configuration information
> [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
> [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs
> [ 0.000000] mapped IOAPIC to ffffffffff5f9000 (fec00000)
> [ 0.000000] nr_irqs_gsi: 40
> [ 0.000000] e820: [mem 0x10000000-0xfeffbfff] available for PCI devices
> [ 0.000000] Booting paravirtualized kernel on KVM
> [ 0.000000] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1
> [ 0.000000] PERCPU: Embedded 25 pages/cpu @ffff88000dc00000 s77888 r0 d24512 u1048576
> [ 0.000000] pcpu-alloc: s77888 r0 d24512 u1048576 alloc=1*2097152
> [ 0.000000] pcpu-alloc: [0] 0 1
> [ 0.000000] kvm-clock: cpu 0, msr 0:fff8001, primary cpu clock
> [ 0.000000] KVM setup async PF for cpu 0
> [ 0.000000] kvm-stealtime: cpu 0, msr dc0cbc0
> [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 64379
> [ 0.000000] Policy zone: DMA32
> [ 0.000000] Kernel command line: hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 branch=mmotm/master log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=vmlinuz-2013-03-02-09-22-20-mmotm:master:67e51ff72caec0de0c3673303c0e7ee935ef80d8-1eea8bb261e8d43492c91d516d97cf96cdac7a3b-x86_64-randconfig-s007-0225-1-waimea BOOT_IMAGE=/kernel/x86_64-randconfig-s007-0225/1eea8bb261e8d43492c91d516d97cf96cdac7a3b/vmlinuz-3.8.0-mm1-00066-g1eea8bb
> [ 0.000000] sysrq: sysrq always enabled.
> [ 0.000000] PID hash table entries: 1024 (order: 1, 8192 bytes)
> [ 0.000000] __ex_table already sorted, skipping sort
> [ 0.000000] Checking aperture...
> [ 0.000000] No AGP bridge found
> [ 0.000000] Memory: 198192k/262136k available (5605k kernel code, 440k absent, 63504k reserved, 7083k data, 1032k init)
> [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
> [ 0.000000] Preemptible hierarchical RCU implementation.
> [ 0.000000]
> [ 0.000000]
> [ 0.000000]
> [ 0.000000]
> [ 0.000000] NR_IRQS:4352 nr_irqs:512 16
> [ 0.000000] console [ttyS0] enabled
> [ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
> [ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8
> [ 0.000000] ... MAX_LOCK_DEPTH: 48
> [ 0.000000] ... MAX_LOCKDEP_KEYS: 8191
> [ 0.000000] ... CLASSHASH_SIZE: 4096
> [ 0.000000] ... MAX_LOCKDEP_ENTRIES: 16384
> [ 0.000000] ... MAX_LOCKDEP_CHAINS: 32768
> [ 0.000000] ... CHAINHASH_SIZE: 16384
> [ 0.000000] memory used by lock dependency info: 5855 kB
> [ 0.000000] per task-struct memory footprint: 1920 bytes
> [ 0.000000] ------------------------
> [ 0.000000] | Locking API testsuite:
> [ 0.000000] ----------------------------------------------------------------------------
> [ 0.000000] | spin |wlock |rlock |mutex | wsem | rsem |
> [ 0.000000] --------------------------------------------------------------------------
> [ 0.000000] A-A deadlock:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 378
> [ 0.000000] hardirqs last enabled at (377): [<ffffffff810bb15c>] debug_check_no_locks_freed+0x1f8/0x224
> [ 0.000000] hardirqs last disabled at (378): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok | ok | ok | ok | ok | ok |
> [ 0.000000] A-B-B-A deadlock:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 392
> [ 0.000000] hardirqs last enabled at (391): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (392): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok | ok | ok | ok | ok | ok |
> [ 0.000000] A-B-B-C-C-A deadlock:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 414
> [ 0.000000] hardirqs last enabled at (413): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (414): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok | ok | ok | ok | ok | ok |
> [ 0.000000] A-B-C-A-B-C deadlock:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 444
> [ 0.000000] hardirqs last enabled at (443): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (444): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok | ok | ok | ok | ok | ok |
> [ 0.000000] A-B-B-C-C-D-D-A deadlock:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 474
> [ 0.000000] hardirqs last enabled at (473): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (474): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok | ok | ok | ok | ok | ok |
> [ 0.000000] A-B-C-D-B-D-D-A deadlock:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 512
> [ 0.000000] hardirqs last enabled at (511): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (512): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok | ok | ok | ok | ok | ok |
> [ 0.000000] A-B-C-D-B-C-D-A deadlock:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 550
> [ 0.000000] hardirqs last enabled at (549): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (550): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok | ok | ok | ok | ok | ok |
> [ 0.000000] double unlock:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 588
> [ 0.000000] hardirqs last enabled at (587): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (588): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok | ok | ok | ok | ok | ok |
> [ 0.000000] initialize held:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 604
> [ 0.000000] hardirqs last enabled at (603): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (604): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok | ok | ok | ok | ok | ok |
> [ 0.000000] bad unlock order:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 620
> [ 0.000000] hardirqs last enabled at (619): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (620): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] FAILED|Pid: 0, comm: swapper/0 Not tainted 3.8.0-mm1-00066-g1eea8bb #252
> [ 0.000000] Call Trace:
> [ 0.000000] [<ffffffff8156b08f>] dotest+0xbc/0x6ff
> [ 0.000000] [<ffffffff8124b5fe>] locking_selftest+0x862/0x2744
> [ 0.000000] [<ffffffff81c7d0c8>] start_kernel+0x44b/0x72b
> [ 0.000000] [<ffffffff81c7c8b1>] ? repair_env_string+0x7d/0x7d
> [ 0.000000] [<ffffffff81c7c54a>] x86_64_start_reservations+0x46/0x4f
> [ 0.000000] [<ffffffff81c7c678>] x86_64_start_kernel+0x125/0x139
> [ 0.000000] ok | ok | ok | ok | ok |
> [ 0.000000] --------------------------------------------------------------------------
> [ 0.000000] recursive read-lock: |possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 640
> [ 0.000000] hardirqs last enabled at (639): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (640): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] FAILED|Pid: 0, comm: swapper/0 Not tainted 3.8.0-mm1-00066-g1eea8bb #252
> [ 0.000000] Call Trace:
> [ 0.000000] [<ffffffff8156b08f>] dotest+0xbc/0x6ff
> [ 0.000000] [<ffffffff8124b707>] locking_selftest+0x96b/0x2744
> [ 0.000000] [<ffffffff81c7d0c8>] start_kernel+0x44b/0x72b
> [ 0.000000] [<ffffffff81c7c8b1>] ? repair_env_string+0x7d/0x7d
> [ 0.000000] [<ffffffff81c7c54a>] x86_64_start_reservations+0x46/0x4f
> [ 0.000000] [<ffffffff81c7c678>] x86_64_start_kernel+0x125/0x139
> [ 0.000000] |possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 642
> [ 0.000000] hardirqs last enabled at (641): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (642): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok |
> [ 0.000000] recursive read-lock #2: |possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 644
> [ 0.000000] hardirqs last enabled at (643): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (644): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] FAILED|Pid: 0, comm: swapper/0 Not tainted 3.8.0-mm1-00066-g1eea8bb #252
> [ 0.000000] Call Trace:
> [ 0.000000] [<ffffffff8156b08f>] dotest+0xbc/0x6ff
> [ 0.000000] [<ffffffff8124b799>] locking_selftest+0x9fd/0x2744
> [ 0.000000] [<ffffffff81c7d0c8>] start_kernel+0x44b/0x72b
> [ 0.000000] [<ffffffff81c7c8b1>] ? repair_env_string+0x7d/0x7d
> [ 0.000000] [<ffffffff81c7c54a>] x86_64_start_reservations+0x46/0x4f
> [ 0.000000] [<ffffffff81c7c678>] x86_64_start_kernel+0x125/0x139
> [ 0.000000] |possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 646
> [ 0.000000] hardirqs last enabled at (645): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (646): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok |
> [ 0.000000] mixed read-write-lock: |possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 648
> [ 0.000000] hardirqs last enabled at (647): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (648): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok | |possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 650
> [ 0.000000] hardirqs last enabled at (649): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (650): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok |
> [ 0.000000] mixed write-read-lock: |possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 652
> [ 0.000000] hardirqs last enabled at (651): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (652): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok | |possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 654
> [ 0.000000] hardirqs last enabled at (653): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (654): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (0): [< (null)>] (null)
> [ 0.000000] softirqs last disabled at (0): [< (null)>] (null)
> [ 0.000000] ok |
> [ 0.000000] --------------------------------------------------------------------------
> [ 0.000000] hard-irqs-on + irq-safe-A/12: ok | ok | ok |
> [ 0.000000] soft-irqs-on + irq-safe-A/12: ok | ok | ok |
> [ 0.000000] hard-irqs-on + irq-safe-A/21:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 692
> [ 0.000000] hardirqs last enabled at (691): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (692): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (688): [<ffffffff8123cc4c>] irqsafe1_soft_rlock_12+0x10b/0x13d
> [ 0.000000] softirqs last disabled at (684): [<ffffffff8123cb54>] irqsafe1_soft_rlock_12+0x13/0x13d
> [ 0.000000] ok | ok | ok |
> [ 0.000000] soft-irqs-on + irq-safe-A/21:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 700
> [ 0.000000] hardirqs last enabled at (699): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (700): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (688): [<ffffffff8123cc4c>] irqsafe1_soft_rlock_12+0x10b/0x13d
> [ 0.000000] softirqs last disabled at (684): [<ffffffff8123cb54>] irqsafe1_soft_rlock_12+0x13/0x13d
> [ 0.000000] ok | ok | ok |
> [ 0.000000] sirq-safe-A => hirqs-on/12: ok | ok | ok |
> [ 0.000000] sirq-safe-A => hirqs-on/21: ok | ok | ok |
> [ 0.000000] hard-safe-A + irqs-on/12: ok | ok | ok |
> [ 0.000000] soft-safe-A + irqs-on/12: ok | ok | ok |
> [ 0.000000] hard-safe-A + irqs-on/21: ok | ok | ok |
> [ 0.000000] soft-safe-A + irqs-on/21:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 826
> [ 0.000000] hardirqs last enabled at (824): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (825): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (807): [<ffffffff8123c177>] irqsafe2B_soft_rlock_12+0x136/0x155
> [ 0.000000] softirqs last disabled at (826): [<ffffffff8123c1a9>] irqsafe2B_soft_spin_21+0x13/0x155
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #1/123:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 847
> [ 0.000000] hardirqs last enabled at (846): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (847): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (843): [<ffffffff8123c035>] irqsafe2B_soft_rlock_21+0x149/0x155
> [ 0.000000] softirqs last disabled at (839): [<ffffffff8123bf3d>] irqsafe2B_soft_rlock_21+0x51/0x155
> [ 0.000000] ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #1/123:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 855
> [ 0.000000] hardirqs last enabled at (854): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (855): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (843): [<ffffffff8123c035>] irqsafe2B_soft_rlock_21+0x149/0x155
> [ 0.000000] softirqs last disabled at (839): [<ffffffff8123bf3d>] irqsafe2B_soft_rlock_21+0x51/0x155
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #1/132:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 868
> [ 0.000000] hardirqs last enabled at (867): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (868): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (864): [<ffffffff8123b5aa>] irqsafe3_soft_rlock_123+0x17d/0x189
> [ 0.000000] softirqs last disabled at (860): [<ffffffff8123b4b2>] irqsafe3_soft_rlock_123+0x85/0x189
> [ 0.000000] ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #1/132:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 876
> [ 0.000000] hardirqs last enabled at (875): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (876): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (864): [<ffffffff8123b5aa>] irqsafe3_soft_rlock_123+0x17d/0x189
> [ 0.000000] softirqs last disabled at (860): [<ffffffff8123b4b2>] irqsafe3_soft_rlock_123+0x85/0x189
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #1/213:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 889
> [ 0.000000] hardirqs last enabled at (888): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (889): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (885): [<ffffffff8123b3fb>] irqsafe3_soft_rlock_132+0x157/0x189
> [ 0.000000] softirqs last disabled at (881): [<ffffffff8123b303>] irqsafe3_soft_rlock_132+0x5f/0x189
> [ 0.000000] ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #1/213:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 897
> [ 0.000000] hardirqs last enabled at (896): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (897): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (885): [<ffffffff8123b3fb>] irqsafe3_soft_rlock_132+0x157/0x189
> [ 0.000000] softirqs last disabled at (881): [<ffffffff8123b303>] irqsafe3_soft_rlock_132+0x5f/0x189
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #1/231:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 910
> [ 0.000000] hardirqs last enabled at (909): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (910): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (906): [<ffffffff8123b298>] irqsafe3_soft_rlock_213+0x17d/0x189
> [ 0.000000] softirqs last disabled at (902): [<ffffffff8123b1a0>] irqsafe3_soft_rlock_213+0x85/0x189
> [ 0.000000] ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #1/231:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 920
> [ 0.000000] hardirqs last enabled at (919): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (920): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (906): [<ffffffff8123b298>] irqsafe3_soft_rlock_213+0x17d/0x189
> [ 0.000000] softirqs last disabled at (902): [<ffffffff8123b1a0>] irqsafe3_soft_rlock_213+0x85/0x189
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #1/312: ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #1/312: ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #1/321: ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #1/321: ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #2/123: ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #2/123:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1025
> [ 0.000000] hardirqs last enabled at (1023): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1024): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1006): [<ffffffff8123ad8b>] irqsafe3_soft_rlock_321+0x10b/0x189
> [ 0.000000] softirqs last disabled at (1025): [<ffffffff8123aaf2>] irqsafe4_soft_spin_123+0x13/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #2/132: ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #2/132:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1065
> [ 0.000000] hardirqs last enabled at (1063): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1064): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1042): [<ffffffff8123a2ae>] irqsafe4_soft_rlock_123+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1065): [<ffffffff8123a951>] irqsafe4_soft_spin_132+0x13/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #2/213:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1091
> [ 0.000000] hardirqs last enabled at (1090): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1091): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1087): [<ffffffff8123a0e7>] irqsafe4_soft_rlock_132+0x16f/0x1a1
> [ 0.000000] softirqs last disabled at (1083): [<ffffffff81239fef>] irqsafe4_soft_rlock_132+0x77/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #2/213:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1103
> [ 0.000000] hardirqs last enabled at (1102): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1103): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1087): [<ffffffff8123a0e7>] irqsafe4_soft_rlock_132+0x16f/0x1a1
> [ 0.000000] softirqs last disabled at (1083): [<ffffffff81239fef>] irqsafe4_soft_rlock_132+0x77/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #2/231:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1124
> [ 0.000000] hardirqs last enabled at (1123): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1124): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1120): [<ffffffff81239f6c>] irqsafe4_soft_rlock_213+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1116): [<ffffffff81239e74>] irqsafe4_soft_rlock_213+0x9d/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #2/231:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1136
> [ 0.000000] hardirqs last enabled at (1135): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1136): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1120): [<ffffffff81239f6c>] irqsafe4_soft_rlock_213+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1116): [<ffffffff81239e74>] irqsafe4_soft_rlock_213+0x9d/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #2/312: ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #2/312: ok | ok | ok |
> [ 0.000000] hard-safe-A + unsafe-B #2/321: ok | ok | ok |
> [ 0.000000] soft-safe-A + unsafe-B #2/321: ok | ok | ok |
> [ 0.000000] hard-irq lock-inversion/123: ok | ok | ok |
> [ 0.000000] soft-irq lock-inversion/123:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1272
> [ 0.000000] hardirqs last enabled at (1270): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1271): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1253): [<ffffffff81239a89>] irqsafe4_soft_rlock_321+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1272): [<ffffffff8123f55c>] irq_inversion_soft_spin_123+0x13/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-irq lock-inversion/132: ok | ok | ok |
> [ 0.000000] soft-irq lock-inversion/132:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1312
> [ 0.000000] hardirqs last enabled at (1310): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1311): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1289): [<ffffffff8123ed18>] irq_inversion_soft_rlock_123+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1312): [<ffffffff8123f3bb>] irq_inversion_soft_spin_132+0x13/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-irq lock-inversion/213:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1338
> [ 0.000000] hardirqs last enabled at (1337): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1338): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1334): [<ffffffff8123eb51>] irq_inversion_soft_rlock_132+0x16f/0x1a1
> [ 0.000000] softirqs last disabled at (1330): [<ffffffff8123ea59>] irq_inversion_soft_rlock_132+0x77/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] soft-irq lock-inversion/213:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1350
> [ 0.000000] hardirqs last enabled at (1349): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1350): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1334): [<ffffffff8123eb51>] irq_inversion_soft_rlock_132+0x16f/0x1a1
> [ 0.000000] softirqs last disabled at (1330): [<ffffffff8123ea59>] irq_inversion_soft_rlock_132+0x77/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-irq lock-inversion/231:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1371
> [ 0.000000] hardirqs last enabled at (1370): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1371): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1367): [<ffffffff8123e9d6>] irq_inversion_soft_rlock_213+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1363): [<ffffffff8123e8de>] irq_inversion_soft_rlock_213+0x9d/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] soft-irq lock-inversion/231:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1383
> [ 0.000000] hardirqs last enabled at (1382): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1383): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1367): [<ffffffff8123e9d6>] irq_inversion_soft_rlock_213+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1363): [<ffffffff8123e8de>] irq_inversion_soft_rlock_213+0x9d/0x1a1
> [ 0.000000] ok | ok | ok |
> [ 0.000000] hard-irq lock-inversion/312: ok | ok | ok |
> [ 0.000000] soft-irq lock-inversion/312: ok | ok | ok |
> [ 0.000000] hard-irq lock-inversion/321: ok | ok | ok |
> [ 0.000000] soft-irq lock-inversion/321: ok | ok | ok |
> [ 0.000000] hard-irq read-recursion/123: ok |
> [ 0.000000] soft-irq read-recursion/123:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1511
> [ 0.000000] hardirqs last enabled at (1509): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1510): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1500): [<ffffffff8123e4f3>] irq_inversion_soft_rlock_321+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1511): [<ffffffff8123d80a>] irq_read_recursion_soft_123+0x13/0x1a1
> [ 0.000000] FAILED|Pid: 0, comm: swapper/0 Not tainted 3.8.0-mm1-00066-g1eea8bb #252
> [ 0.000000] Call Trace:
> [ 0.000000] [<ffffffff8156b08f>] dotest+0xbc/0x6ff
> [ 0.000000] [<ffffffff8124d0f3>] locking_selftest+0x2357/0x2744
> [ 0.000000] [<ffffffff81c7d0c8>] start_kernel+0x44b/0x72b
> [ 0.000000] [<ffffffff81c7c8b1>] ? repair_env_string+0x7d/0x7d
> [ 0.000000] [<ffffffff81c7c54a>] x86_64_start_reservations+0x46/0x4f
> [ 0.000000] [<ffffffff81c7c678>] x86_64_start_kernel+0x125/0x139
> [ 0.000000]
> [ 0.000000] hard-irq read-recursion/132: ok |
> [ 0.000000] soft-irq read-recursion/132:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1520
> [ 0.000000] hardirqs last enabled at (1518): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1519): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1500): [<ffffffff8123e4f3>] irq_inversion_soft_rlock_321+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1520): [<ffffffff8123d669>] irq_read_recursion_soft_132+0x13/0x1a1
> [ 0.000000] FAILED|Pid: 0, comm: swapper/0 Not tainted 3.8.0-mm1-00066-g1eea8bb #252
> [ 0.000000] Call Trace:
> [ 0.000000] [<ffffffff8156b08f>] dotest+0xbc/0x6ff
> [ 0.000000] [<ffffffff8124d18f>] locking_selftest+0x23f3/0x2744
> [ 0.000000] [<ffffffff81c7d0c8>] start_kernel+0x44b/0x72b
> [ 0.000000] [<ffffffff81c7c8b1>] ? repair_env_string+0x7d/0x7d
> [ 0.000000] [<ffffffff81c7c54a>] x86_64_start_reservations+0x46/0x4f
> [ 0.000000] [<ffffffff81c7c678>] x86_64_start_kernel+0x125/0x139
> [ 0.000000]
> [ 0.000000] hard-irq read-recursion/213:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1522
> [ 0.000000] hardirqs last enabled at (1521): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1522): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1500): [<ffffffff8123e4f3>] irq_inversion_soft_rlock_321+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1520): [<ffffffff8123d669>] irq_read_recursion_soft_132+0x13/0x1a1
> [ 0.000000] FAILED|Pid: 0, comm: swapper/0 Not tainted 3.8.0-mm1-00066-g1eea8bb #252
> [ 0.000000] Call Trace:
> [ 0.000000] [<ffffffff8156b08f>] dotest+0xbc/0x6ff
> [ 0.000000] [<ffffffff8124d1dd>] locking_selftest+0x2441/0x2744
> [ 0.000000] [<ffffffff81c7d0c8>] start_kernel+0x44b/0x72b
> [ 0.000000] [<ffffffff81c7c8b1>] ? repair_env_string+0x7d/0x7d
> [ 0.000000] [<ffffffff81c7c54a>] x86_64_start_reservations+0x46/0x4f
> [ 0.000000] [<ffffffff81c7c678>] x86_64_start_kernel+0x125/0x139
> [ 0.000000]
> [ 0.000000] soft-irq read-recursion/213:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1524
> [ 0.000000] hardirqs last enabled at (1523): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1524): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1500): [<ffffffff8123e4f3>] irq_inversion_soft_rlock_321+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1520): [<ffffffff8123d669>] irq_read_recursion_soft_132+0x13/0x1a1
> [ 0.000000] FAILED|Pid: 0, comm: swapper/0 Not tainted 3.8.0-mm1-00066-g1eea8bb #252
> [ 0.000000] Call Trace:
> [ 0.000000] [<ffffffff8156b08f>] dotest+0xbc/0x6ff
> [ 0.000000] [<ffffffff8124d22b>] locking_selftest+0x248f/0x2744
> [ 0.000000] [<ffffffff81c7d0c8>] start_kernel+0x44b/0x72b
> [ 0.000000] [<ffffffff81c7c8b1>] ? repair_env_string+0x7d/0x7d
> [ 0.000000] [<ffffffff81c7c54a>] x86_64_start_reservations+0x46/0x4f
> [ 0.000000] [<ffffffff81c7c678>] x86_64_start_kernel+0x125/0x139
> [ 0.000000]
> [ 0.000000] hard-irq read-recursion/231:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1526
> [ 0.000000] hardirqs last enabled at (1525): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1526): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1500): [<ffffffff8123e4f3>] irq_inversion_soft_rlock_321+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1520): [<ffffffff8123d669>] irq_read_recursion_soft_132+0x13/0x1a1
> [ 0.000000] FAILED|Pid: 0, comm: swapper/0 Not tainted 3.8.0-mm1-00066-g1eea8bb #252
> [ 0.000000] Call Trace:
> [ 0.000000] [<ffffffff8156b08f>] dotest+0xbc/0x6ff
> [ 0.000000] [<ffffffff8124d279>] locking_selftest+0x24dd/0x2744
> [ 0.000000] [<ffffffff81c7d0c8>] start_kernel+0x44b/0x72b
> [ 0.000000] [<ffffffff81c7c8b1>] ? repair_env_string+0x7d/0x7d
> [ 0.000000] [<ffffffff81c7c54a>] x86_64_start_reservations+0x46/0x4f
> [ 0.000000] [<ffffffff81c7c678>] x86_64_start_kernel+0x125/0x139
> [ 0.000000]
> [ 0.000000] soft-irq read-recursion/231:possible reason: unannotated irqs-on.
> [ 0.000000] irq event stamp: 1528
> [ 0.000000] hardirqs last enabled at (1527): [<ffffffff8156b671>] dotest+0x69e/0x6ff
> [ 0.000000] hardirqs last disabled at (1528): [<ffffffff8104ae9c>] vprintk_emit+0xb3/0x88f
> [ 0.000000] softirqs last enabled at (1500): [<ffffffff8123e4f3>] irq_inversion_soft_rlock_321+0x195/0x1a1
> [ 0.000000] softirqs last disabled at (1520): [<ffffffff8123d669>] irq_read_recursion_soft_132+0x13/0x1a1
> [ 0.000000] FAILED|Pid: 0, comm: swapper/0 Not tainted 3.8.0-mm1-00066-g1eea8bb #252
> [ 0.000000] Call Trace:
> [ 0.000000] [<ffffffff8156b08f>] dotest+0xbc/0x6ff
> [ 0.000000] [<ffffffff8124d2c7>] locking_selftest+0x252b/0x2744
> [ 0.000000] [<ffffffff81c7d0c8>] start_kernel+0x44b/0x72b
> [ 0.000000] [<ffffffff81c7c8b1>] ? repair_env_string+0x7d/0x7d
> [ 0.000000] [<ffffffff81c7c54a>] x86_64_start_reservations+0x46/0x4f
> [ 0.000000] [<ffffffff81c7c678>] x86_64_start_kernel+0x125/0x139
> [ 0.000000]
> [ 0.000000] hard-irq read-recursion/312: ok |
> [ 0.000000] soft-irq read-recursion/312: ok |
> [ 0.000000] hard-irq read-recursion/321: ok |
> [ 0.000000] soft-irq read-recursion/321: ok |
> [ 0.000000] -----------------------------------------------------------------
> [ 0.000000] BUG: 9 unexpected failures (out of 218) - debugging disabled! |
> [ 0.000000] -----------------------------------------------------------------
> [ 0.000000] ODEBUG: 11 of 11 active objects replaced
> [ 0.000000] ODEBUG: selftest passed
> [ 0.000000] hpet clockevent registered
> [ 0.000000] tsc: Detected 3300.108 MHz processor
> [ 0.020000] Calibrating delay loop (skipped) preset value.. 6600.21 BogoMIPS (lpj=33001080)
> [ 0.020000] pid_max: default: 32768 minimum: 301
> [ 0.020000] Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
> [ 0.020000] Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
> [ 0.020000] Mount-cache hash table entries: 256
> [ 0.020000] numa_add_cpu cpu 0 node 0: mask now 0
> [ 0.020000] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
> [ 0.020000] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0
> [ 0.020000] tlb_flushall_shift: 6
> [ 0.020000] debug: unmapping init [mem 0xffffffff81d6a000-0xffffffff81d6cfff]
> [ 0.020453] ACPI: Core revision 20130117
> [ 0.022477] ACPI: All ACPI Tables successfully acquired
> [ 0.023145] ftrace: allocating 16261 entries in 64 pages
> [ 0.030122] Getting VERSION: 50014
> [ 0.030525] Getting VERSION: 50014
> [ 0.030929] Getting ID: 0
> [ 0.031240] Getting ID: ff000000
> [ 0.031615] Getting LVT0: 8700
> [ 0.031978] Getting LVT1: 8400
> [ 0.032362] enabled ExtINT on CPU#0
> [ 0.033271] ENABLING IO-APIC IRQs
> [ 0.040008] init IO_APIC IRQs
> [ 0.040363] apic 2 pin 0 not connected
> [ 0.040806] IOAPIC[0]: Set routing entry (2-1 -> 0x31 -> IRQ 1 Mode:0 Active:0 Dest:1)
> [ 0.041712] IOAPIC[0]: Set routing entry (2-2 -> 0x30 -> IRQ 0 Mode:0 Active:0 Dest:1)
> [ 0.042612] IOAPIC[0]: Set routing entry (2-3 -> 0x33 -> IRQ 3 Mode:0 Active:0 Dest:1)
> [ 0.043510] IOAPIC[0]: Set routing entry (2-4 -> 0x34 -> IRQ 4 Mode:0 Active:0 Dest:1)
> [ 0.044414] IOAPIC[0]: Set routing entry (2-5 -> 0x35 -> IRQ 5 Mode:1 Active:0 Dest:1)
> [ 0.045313] IOAPIC[0]: Set routing entry (2-6 -> 0x36 -> IRQ 6 Mode:0 Active:0 Dest:1)
> [ 0.046209] IOAPIC[0]: Set routing entry (2-7 -> 0x37 -> IRQ 7 Mode:0 Active:0 Dest:1)
> [ 0.047109] IOAPIC[0]: Set routing entry (2-8 -> 0x38 -> IRQ 8 Mode:0 Active:0 Dest:1)
> [ 0.048005] IOAPIC[0]: Set routing entry (2-9 -> 0x39 -> IRQ 9 Mode:1 Active:0 Dest:1)
> [ 0.048913] IOAPIC[0]: Set routing entry (2-10 -> 0x3a -> IRQ 10 Mode:1 Active:0 Dest:1)
> [ 0.049833] IOAPIC[0]: Set routing entry (2-11 -> 0x3b -> IRQ 11 Mode:1 Active:0 Dest:1)
> [ 0.050019] IOAPIC[0]: Set routing entry (2-12 -> 0x3c -> IRQ 12 Mode:0 Active:0 Dest:1)
> [ 0.050942] IOAPIC[0]: Set routing entry (2-13 -> 0x3d -> IRQ 13 Mode:0 Active:0 Dest:1)
> [ 0.051864] IOAPIC[0]: Set routing entry (2-14 -> 0x3e -> IRQ 14 Mode:0 Active:0 Dest:1)
> [ 0.052797] IOAPIC[0]: Set routing entry (2-15 -> 0x3f -> IRQ 15 Mode:0 Active:0 Dest:1)
> [ 0.053738] apic 2 pin 16 not connected
> [ 0.054190] apic 2 pin 17 not connected
> [ 0.054635] apic 2 pin 18 not connected
> [ 0.055081] apic 2 pin 19 not connected
> [ 0.055532] apic 2 pin 20 not connected
> [ 0.055979] apic 2 pin 21 not connected
> [ 0.056433] apic 2 pin 22 not connected
> [ 0.056877] apic 2 pin 23 not connected
> [ 0.057477] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
> [ 0.058330] smpboot: CPU0: Intel Common KVM processor (fam: 0f, model: 06, stepping: 01)
> [ 0.060230] Using local APIC timer interrupts.
> [ 0.060230] calibrating APIC timer ...
> [ 0.070000] ... lapic delta = 6250032
> [ 0.070000] ... PM-Timer delta = 357970
> [ 0.070000] ... PM-Timer result ok
> [ 0.070000] ..... delta 6250032
> [ 0.070000] ..... mult: 268436830
> [ 0.070000] ..... calibration result: 10000051
> [ 0.070000] ..... CPU clock speed is 3300.2510 MHz.
> [ 0.070000] ..... host bus clock speed is 1000.0051 MHz.
> [ 0.070000] Performance Events: unsupported Netburst CPU model 6 no PMU driver, software events only.
> [ 0.100310] ftrace: Allocated trace_printk buffers
> [ 0.103824] Testing tracer nop: PASSED
> [ 0.104669] SMP alternatives: lockdep: fixing up alternatives
> [ 0.105457] smpboot: Booting Node 0, Processors #1 OK
> [ 0.020000] kvm-clock: cpu 1, msr 0:fff8041, secondary cpu clock
> [ 0.020000] masked ExtINT on CPU#1
> [ 0.020000] numa_add_cpu cpu 1 node 0: mask now 0-1
> [ 0.130120] Brought up 2 CPUs
> [ 0.130086] KVM setup async PF for cpu 1
> [ 0.130086] kvm-stealtime: cpu 1, msr dd0cbc0
> [ 0.131389] smpboot: Total of 2 processors activated (13200.43 BogoMIPS)
> [ 0.140692] devtmpfs: initialized
> [ 0.141112] device: 'platform': device_add
> [ 0.141599] bus: 'platform': registered
> [ 0.142064] bus: 'cpu': registered
> [ 0.142455] device: 'cpu': device_add
> [ 0.142898] bus: 'memory': registered
> [ 0.143315] device: 'memory': device_add
> [ 0.143777] device: 'memory0': device_add
> [ 0.144243] bus: 'memory': add device memory0
> [ 0.144754] device: 'memory1': device_add
> [ 0.145217] bus: 'memory': add device memory1
> [ 0.230013] Testing tracer function: PASSED
> [ 0.451342] Testing dynamic ftrace: PASSED
> [ 0.760120] Testing dynamic ftrace ops #1: (1 0 1 1 0) (1 1 2 1 0) (2 1 3 1 9) (2 2 4 1 101) PASSED
> [ 0.842382] Testing dynamic ftrace ops #2: (1 0 1 9 0) (1 1 2 108 0) (2 1 3 1 9) (2 2 4 100 107) PASSED
> [ 0.926937] Testing ftrace recursion: PASSED
> [ 0.936251] Testing ftrace recursion safe: PASSED
> [ 0.945664] Testing ftrace regs: PASSED
> [ 1.150018] Testing tracer irqsoff: PASSED
> [ 1.521529] Testing tracer wakeup: ret = 0
> [ 1.810018] ftrace-test (24) used greatest stack depth: 6584 bytes left
> [ 1.911625] PASSED
> [ 2.001403] Testing tracer wakeup_rt: ret = 0
> [ 2.391791] PASSED
> [ 2.392401] atomic64 test passed for x86-64 platform with CX8 and with SSE
> [ 2.393249] bus: 'virtio': registered
> [ 2.393713] device class 'regulator': registering
> [ 2.394279] Registering platform device 'reg-dummy'. Parent at platform
> [ 2.395067] device: 'reg-dummy': device_add
> [ 2.395616] bus: 'platform': add device reg-dummy
> [ 2.396169] bus: 'platform': add driver reg-dummy
> [ 2.396773] bus: 'platform': driver_probe_device: matched device reg-dummy with driver reg-dummy
> [ 2.397824] bus: 'platform': really_probe: probing driver reg-dummy with device reg-dummy
> [ 2.398819] device: 'regulator.0': device_add
> [ 2.399352] regulator-dummy: no parameters
> [ 2.399898] driver: 'reg-dummy': driver_bound: bound to device 'reg-dummy'
> [ 2.400007] bus: 'platform': really_probe: bound device reg-dummy to driver reg-dummy
> [ 2.401027] NET: Registered protocol family 16
> [ 2.401761] device class 'bdi': registering
> [ 2.402268] device class 'pci_bus': registering
> [ 2.402861] bus: 'pci': registered
> [ 2.403271] device: 'rapidio': device_add
> [ 2.403779] bus: 'rapidio': registered
> [ 2.404222] device class 'backlight': registering
> [ 2.404801] device class 'tty': registering
> [ 2.405308] bus: 'node': registered
> [ 2.405736] device: 'node': device_add
> [ 2.406204] bus: 'hsi': registered
> [ 2.406623] bus: 'i2c': registered
> [ 2.407046] bus: 'i2c': add driver dummy
> [ 2.490239] ACPI: bus type pci registered
> [ 2.490712] device class 'dma': registering
> [ 2.491236] PCI: Using configuration type 1 for base access
> [ 2.492007] device: 'node0': device_add
> [ 2.492454] bus: 'node': add device node0
> [ 2.492943] device: 'cpu0': device_add
> [ 2.493373] bus: 'cpu': add device cpu0
> [ 2.493840] device: 'cpu1': device_add
> [ 2.494269] bus: 'cpu': add device cpu1
> [ 2.496152] device: 'default': device_add
> [ 2.496805] device class 'graphics': registering
> [ 2.497353] ACPI: Added _OSI(Module Device)
> [ 2.497837] ACPI: Added _OSI(Processor Device)
> [ 2.498334] ACPI: Added _OSI(3.0 _SCP Extensions)
> [ 2.498892] ACPI: Added _OSI(Processor Aggregator Device)
> [ 2.500549] ACPI: EC: Look up EC in DSDT
> [ 2.504038] ACPI: Interpreter enabled
> [ 2.504459] ACPI: (supports S0 S5)
> [ 2.504896] ACPI: Using IOAPIC for interrupt routing
> [ 2.505471] bus: 'acpi': registered
> [ 2.505869] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
> [ 2.506894] device: 'LNXSYSTM:00': device_add
> [ 2.507392] bus: 'acpi': add device LNXSYSTM:00
> [ 2.507983] device: 'LNXSYBUS:00': device_add
> [ 2.508503] bus: 'acpi': add device LNXSYBUS:00
> [ 2.509094] device: 'PNP0A03:00': device_add
> [ 2.509587] bus: 'acpi': add device PNP0A03:00
> [ 2.510355] device: 'device:00': device_add
> [ 2.510839] bus: 'acpi': add device device:00
> [ 2.511404] device: 'device:01': device_add
> [ 2.511880] bus: 'acpi': add device device:01
> [ 2.512433] device: 'PNP0B00:00': device_add
> [ 2.512921] bus: 'acpi': add device PNP0B00:00
> [ 2.513507] device: 'PNP0303:00': device_add
> [ 2.513993] bus: 'acpi': add device PNP0303:00
> [ 2.514577] device: 'PNP0F13:00': device_add
> [ 2.515063] bus: 'acpi': add device PNP0F13:00
> [ 2.515651] device: 'PNP0700:00': device_add
> [ 2.516138] bus: 'acpi': add device PNP0700:00
> [ 2.516800] device: 'PNP0400:00': device_add
> [ 2.517289] bus: 'acpi': add device PNP0400:00
> [ 2.517941] device: 'PNP0501:00': device_add
> [ 2.518468] bus: 'acpi': add device PNP0501:00
> [ 2.519069] device: 'device:02': device_add
> [ 2.519555] bus: 'acpi': add device device:02
> [ 2.520072] device: 'device:03': device_add
> [ 2.520563] bus: 'acpi': add device device:03
> [ 2.521119] device: 'device:04': device_add
> [ 2.521602] bus: 'acpi': add device device:04
> [ 2.522160] device: 'device:05': device_add
> [ 2.522643] bus: 'acpi': add device device:05
> [ 2.523206] device: 'device:06': device_add
> [ 2.523690] bus: 'acpi': add device device:06
> [ 2.524252] device: 'device:07': device_add
> [ 2.524737] bus: 'acpi': add device device:07
> [ 2.525299] device: 'device:08': device_add
> [ 2.525788] bus: 'acpi': add device device:08
> [ 2.526353] device: 'device:09': device_add
> [ 2.526830] bus: 'acpi': add device device:09
> [ 2.527399] device: 'device:0a': device_add
> [ 2.527878] bus: 'acpi': add device device:0a
> [ 2.528471] device: 'device:0b': device_add
> [ 2.528946] bus: 'acpi': add device device:0b
> [ 2.529517] device: 'device:0c': device_add
> [ 2.530008] bus: 'acpi': add device device:0c
> [ 2.530573] device: 'device:0d': device_add
> [ 2.531051] bus: 'acpi': add device device:0d
> [ 2.531625] device: 'device:0e': device_add
> [ 2.532105] bus: 'acpi': add device device:0e
> [ 2.532671] device: 'device:0f': device_add
> [ 2.533148] bus: 'acpi': add device device:0f
> [ 2.533729] device: 'device:10': device_add
> [ 2.534207] bus: 'acpi': add device device:10
> [ 2.534770] device: 'device:11': device_add
> [ 2.535245] bus: 'acpi': add device device:11
> [ 2.535817] device: 'device:12': device_add
> [ 2.536297] bus: 'acpi': add device device:12
> [ 2.536863] device: 'device:13': device_add
> [ 2.537347] bus: 'acpi': add device device:13
> [ 2.537910] device: 'device:14': device_add
> [ 2.538425] bus: 'acpi': add device device:14
> [ 2.538980] device: 'device:15': device_add
> [ 2.539464] bus: 'acpi': add device device:15
> [ 2.540077] device: 'device:16': device_add
> [ 2.540566] bus: 'acpi': add device device:16
> [ 2.541129] device: 'device:17': device_add
> [ 2.541613] bus: 'acpi': add device device:17
> [ 2.542174] device: 'device:18': device_add
> [ 2.542662] bus: 'acpi': add device device:18
> [ 2.543222] device: 'device:19': device_add
> [ 2.543706] bus: 'acpi': add device device:19
> [ 2.544272] device: 'device:1a': device_add
> [ 2.544758] bus: 'acpi': add device device:1a
> [ 2.545315] device: 'device:1b': device_add
> [ 2.545796] bus: 'acpi': add device device:1b
> [ 2.546367] device: 'device:1c': device_add
> [ 2.546843] bus: 'acpi': add device device:1c
> [ 2.547407] device: 'device:1d': device_add
> [ 2.547882] bus: 'acpi': add device device:1d
> [ 2.548481] device: 'device:1e': device_add
> [ 2.548960] bus: 'acpi': add device device:1e
> [ 2.549525] device: 'device:1f': device_add
> [ 2.550008] bus: 'acpi': add device device:1f
> [ 2.550578] device: 'device:20': device_add
> [ 2.551054] bus: 'acpi': add device device:20
> [ 2.551625] device: 'device:21': device_add
> [ 2.552101] bus: 'acpi': add device device:21
> [ 2.552825] device: 'PNP0103:00': device_add
> [ 2.553313] bus: 'acpi': add device PNP0103:00
> [ 2.553991] device: 'PNP0C0F:00': device_add
> [ 2.554488] bus: 'acpi': add device PNP0C0F:00
> [ 2.555131] device: 'PNP0C0F:01': device_add
> [ 2.555625] bus: 'acpi': add device PNP0C0F:01
> [ 2.556262] device: 'PNP0C0F:02': device_add
> [ 2.556755] bus: 'acpi': add device PNP0C0F:02
> [ 2.557407] device: 'PNP0C0F:03': device_add
> [ 2.557891] bus: 'acpi': add device PNP0C0F:03
> [ 2.558570] device: 'PNP0C0F:04': device_add
> [ 2.559056] bus: 'acpi': add device PNP0C0F:04
> [ 2.559648] device: 'LNXCPU:00': device_add
> [ 2.560008] bus: 'acpi': add device LNXCPU:00
> [ 2.560582] device: 'LNXCPU:01': device_add
> [ 2.561059] bus: 'acpi': add device LNXCPU:01
> [ 2.561628] device: 'LNXSYBUS:01': device_add
> [ 2.562125] bus: 'acpi': add device LNXSYBUS:01
> [ 2.562707] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
> [ 2.563407] acpi PNP0A03:00: Unable to request _OSC control (_OSC support mask: 0x08)
> [ 2.564302] device: 'pci0000:00': device_add
> [ 2.564807] device: '0000:00': device_add
> [ 2.565293] PCI host bridge to bus 0000:00
> [ 2.565758] pci_bus 0000:00: root bus resource [bus 00-ff]
> [ 2.566376] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7]
> [ 2.567060] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff]
> [ 2.567752] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff]
> [ 2.568566] pci_bus 0000:00: root bus resource [mem 0xe0000000-0xfebfffff]
> [ 2.569366] pci_bus 0000:00: scanning bus
> [ 2.570045] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000
> [ 2.570748] pci 0000:00:00.0: calling quirk_mmio_always_on+0x0/0x16
> [ 2.571756] device: '0000:00:00.0': device_add
> [ 2.572407] bus: 'pci': add device 0000:00:00.0
> [ 2.573015] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100
> [ 2.574143] device: '0000:00:01.0': device_add
> [ 2.574690] bus: 'pci': add device 0000:00:01.0
> [ 2.575297] pci 0000:00:01.1: [8086:7010] type 00 class 0x010180
> [ 2.577491] pci 0000:00:01.1: reg 20: [io 0xc1c0-0xc1cf]
> [ 2.578763] device: '0000:00:01.1': device_add
> [ 2.579376] bus: 'pci': add device 0000:00:01.1
> [ 2.580067] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000
> [ 2.580754] pci 0000:00:01.3: calling acpi_pm_check_blacklist+0x0/0x59
> [ 2.581888] pci 0000:00:01.3: calling quirk_piix4_acpi+0x0/0x1cb
> [ 2.582575] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI
> [ 2.583380] pci 0000:00:01.3: quirk: [io 0xb100-0xb10f] claimed by PIIX4 SMB
> [ 2.584217] pci 0000:00:01.3: calling pci_fixup_piix4_acpi+0x0/0x1c
> [ 2.584978] device: '0000:00:01.3': device_add
> [ 2.585512] bus: 'pci': add device 0000:00:01.3
> [ 2.586127] pci 0000:00:02.0: [1013:00b8] type 00 class 0x030000
> [ 2.588535] pci 0000:00:02.0: reg 10: [mem 0xfc000000-0xfdffffff pref]
> [ 2.590066] pci 0000:00:02.0: reg 14: [mem 0xfebf4000-0xfebf4fff]
> [ 2.594028] pci 0000:00:02.0: reg 30: [mem 0xfebe0000-0xfebeffff pref]
> [ 2.594903] device: '0000:00:02.0': device_add
> [ 2.595529] bus: 'pci': add device 0000:00:02.0
> [ 2.596183] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000
> [ 2.597405] pci 0000:00:03.0: reg 10: [mem 0xfeba0000-0xfebbffff]
> [ 2.598597] pci 0000:00:03.0: reg 14: [io 0xc000-0xc03f]
> [ 2.601715] pci 0000:00:03.0: reg 30: [mem 0xfebc0000-0xfebdffff pref]
> [ 2.602503] device: '0000:00:03.0': device_add
> [ 2.603042] bus: 'pci': add device 0000:00:03.0
> [ 2.603679] pci 0000:00:04.0: [8086:2668] type 00 class 0x040300
> [ 2.604668] pci 0000:00:04.0: reg 10: [mem 0xfebf0000-0xfebf3fff]
> [ 2.607127] device: '0000:00:04.0': device_add
> [ 2.607669] bus: 'pci': add device 0000:00:04.0
> [ 2.608284] pci 0000:00:05.0: [1af4:1001] type 00 class 0x010000
> [ 2.609557] pci 0000:00:05.0: reg 10: [io 0xc040-0xc07f]
> [ 2.610500] pci 0000:00:05.0: reg 14: [mem 0xfebf5000-0xfebf5fff]
> [ 2.613784] device: '0000:00:05.0': device_add
> [ 2.614335] bus: 'pci': add device 0000:00:05.0
> [ 2.614944] pci 0000:00:06.0: [1af4:1001] type 00 class 0x010000
> [ 2.616153] pci 0000:00:06.0: reg 10: [io 0xc080-0xc0bf]
> [ 2.617247] pci 0000:00:06.0: reg 14: [mem 0xfebf6000-0xfebf6fff]
> [ 2.620641] device: '0000:00:06.0': device_add
> [ 2.621182] bus: 'pci': add device 0000:00:06.0
> [ 2.621802] pci 0000:00:07.0: [1af4:1001] type 00 class 0x010000
> [ 2.623008] pci 0000:00:07.0: reg 10: [io 0xc0c0-0xc0ff]
> [ 2.624102] pci 0000:00:07.0: reg 14: [mem 0xfebf7000-0xfebf7fff]
> [ 2.627361] device: '0000:00:07.0': device_add
> [ 2.627916] bus: 'pci': add device 0000:00:07.0
> [ 2.628562] pci 0000:00:08.0: [1af4:1001] type 00 class 0x010000
> [ 2.629795] pci 0000:00:08.0: reg 10: [io 0xc100-0xc13f]
> [ 2.630491] pci 0000:00:08.0: reg 14: [mem 0xfebf8000-0xfebf8fff]
> [ 2.633750] device: '0000:00:08.0': device_add
> [ 2.634308] bus: 'pci': add device 0000:00:08.0
> [ 2.634924] pci 0000:00:09.0: [1af4:1001] type 00 class 0x010000
> [ 2.636139] pci 0000:00:09.0: reg 10: [io 0xc140-0xc17f]
> [ 2.637239] pci 0000:00:09.0: reg 14: [mem 0xfebf9000-0xfebf9fff]
> [ 2.640893] device: '0000:00:09.0': device_add
> [ 2.641457] bus: 'pci': add device 0000:00:09.0
> [ 2.642067] pci 0000:00:0a.0: [1af4:1001] type 00 class 0x010000
> [ 2.643277] pci 0000:00:0a.0: reg 10: [io 0xc180-0xc1bf]
> [ 2.644383] pci 0000:00:0a.0: reg 14: [mem 0xfebfa000-0xfebfafff]
> [ 2.647690] device: '0000:00:0a.0': device_add
> [ 2.648252] bus: 'pci': add device 0000:00:0a.0
> [ 2.648881] pci 0000:00:0b.0: [8086:25ab] type 00 class 0x088000
> [ 2.650005] pci 0000:00:0b.0: reg 10: [mem 0xfebfb000-0xfebfb00f]
> [ 2.652327] device: '0000:00:0b.0': device_add
> [ 2.652899] bus: 'pci': add device 0000:00:0b.0
> [ 2.653631] pci_bus 0000:00: fixups for bus
> [ 2.654102] pci_bus 0000:00: bus scan returning with max=00
> [ 2.654731] ACPI _OSC control for PCIe not granted, disabling ASPM
> [ 2.656110] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
> [ 2.656979] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
> [ 2.657840] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
> [ 2.658724] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
> [ 2.659580] ACPI: PCI Interrupt Link [LNKS] (IRQs 9) *0
> [ 2.660313] device: 'LNXPWRBN:00': device_add
> [ 2.660820] bus: 'acpi': add device LNXPWRBN:00
> [ 2.661566] ACPI: Enabled 16 GPEs in block 00 to 0F
> [ 2.662152] acpi root: \_SB_.PCI0 notify handler is installed
> [ 2.662841] Found 1 acpi root devices
> [ 2.663260] bus: 'acpi': add driver ec
> [ 2.663783] bus: 'pnp': registered
> [ 2.664181] bus: 'platform': add driver reg-fixed-voltage
> [ 2.664821] bus: 'i2c': add driver isl6271a
> [ 2.665307] bus: 'i2c': add driver lp3972
> [ 2.665780] bus: 'i2c': add driver max8952
> [ 2.666255] bus: 'i2c': add driver max8973
> [ 2.666736] bus: 'platform': add driver max8997-pmic
> [ 2.667310] bus: 'platform': add driver mc13892-regulator
> [ 2.667929] bus: 'platform': add driver palmas-pmic
> [ 2.668533] bus: 'platform': add driver tps6105x-regulator
> [ 2.669159] bus: 'i2c': add driver tps62360
> [ 2.669652] device class 'misc': registering
> [ 2.670028] bus: 'i2c': add driver tc3589x
> [ 2.670513] bus: 'i2c': add driver wm8350
> [ 2.670976] bus: 'i2c': add driver tps6105x
> [ 2.671466] bus: 'i2c': add driver mc13xxx
> [ 2.671939] bus: 'i2c': add driver da9052
> [ 2.672418] bus: 'i2c': add driver lp8788
> [ 2.672883] bus: 'i2c': add driver max8907
> [ 2.673369] bus: 'i2c': add driver max8997
> [ 2.673842] bus: 'i2c': add driver pcf50633
> [ 2.674332] bus: 'i2c': add driver tps6586x
> [ 2.674813] bus: 'i2c': add driver palmas
> [ 2.675282] bus: 'i2c': add driver as3711
> [ 2.675755] device class 'pcmcia_socket': registering
> [ 2.676349] bus: 'serio': registered
> [ 2.676790] bus: 'gameport': registered
> [ 2.677233] device class 'input': registering
> [ 2.677730] device class 'rtc': registering
> [ 2.678207] device class 'pps': registering
> [ 2.678719] pps_core: LinuxPPS API ver. 1 registered
> [ 2.679281] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
> [ 2.680004] device class 'ptp': registering
> [ 2.680484] PTP clock support registered
> [ 2.680939] device class 'power_supply': registering
> [ 2.681500] bus: 'platform': add driver max8997-battery
> [ 2.682102] device class 'hwmon': registering
> [ 2.682601] EDAC MC: Ver: 3.0.0
> [ 2.683210] bus: 'edac': registered
> [ 2.683609] device: 'edac': device_add
> [ 2.684053] device: 'mc': device_add
> [ 2.684461] bus: 'edac': add device mc
> [ 2.685136] bus: 'mmc': registered
> [ 2.685534] device class 'mmc_host': registering
> [ 2.686089] bus: 'sdio': registered
> [ 2.686489] device class 'leds': registering
> [ 2.686991] PCI: Using ACPI for IRQ routing
> [ 2.687470] PCI: pci_cache_line_size set to 64 bytes
> [ 2.688086] pci 0000:00:01.1: BAR 0: reserving [io 0x01f0-0x01f7 flags 0x110] (d=0, p=0)
> [ 2.688999] pci 0000:00:01.1: BAR 1: reserving [io 0x03f6 flags 0x110] (d=0, p=0)
> [ 2.690006] pci 0000:00:01.1: BAR 2: reserving [io 0x0170-0x0177 flags 0x110] (d=0, p=0)
> [ 2.690915] pci 0000:00:01.1: BAR 3: reserving [io 0x0376 flags 0x110] (d=0, p=0)
> [ 2.691752] pci 0000:00:01.1: BAR 4: reserving [io 0xc1c0-0xc1cf flags 0x40101] (d=0, p=0)
> [ 2.692693] pci 0000:00:02.0: BAR 0: reserving [mem 0xfc000000-0xfdffffff flags 0x42208] (d=0, p=0)
> [ 2.693694] pci 0000:00:02.0: BAR 1: reserving [mem 0xfebf4000-0xfebf4fff flags 0x40200] (d=0, p=0)
> [ 2.694702] pci 0000:00:03.0: BAR 0: reserving [mem 0xfeba0000-0xfebbffff flags 0x40200] (d=0, p=0)
> [ 2.695705] pci 0000:00:03.0: BAR 1: reserving [io 0xc000-0xc03f flags 0x40101] (d=0, p=0)
> [ 2.696640] pci 0000:00:04.0: BAR 0: reserving [mem 0xfebf0000-0xfebf3fff flags 0x40200] (d=0, p=0)
> [ 2.697646] pci 0000:00:05.0: BAR 0: reserving [io 0xc040-0xc07f flags 0x40101] (d=0, p=0)
> [ 2.698600] pci 0000:00:05.0: BAR 1: reserving [mem 0xfebf5000-0xfebf5fff flags 0x40200] (d=0, p=0)
> [ 2.699612] pci 0000:00:06.0: BAR 0: reserving [io 0xc080-0xc0bf flags 0x40101] (d=0, p=0)
> [ 2.700931] pci 0000:00:06.0: BAR 1: reserving [mem 0xfebf6000-0xfebf6fff flags 0x40200] (d=0, p=0)
> [ 2.701939] pci 0000:00:07.0: BAR 0: reserving [io 0xc0c0-0xc0ff flags 0x40101] (d=0, p=0)
> [ 2.702867] pci 0000:00:07.0: BAR 1: reserving [mem 0xfebf7000-0xfebf7fff flags 0x40200] (d=0, p=0)
> [ 2.703875] pci 0000:00:08.0: BAR 0: reserving [io 0xc100-0xc13f flags 0x40101] (d=0, p=0)
> [ 2.704804] pci 0000:00:08.0: BAR 1: reserving [mem 0xfebf8000-0xfebf8fff flags 0x40200] (d=0, p=0)
> [ 2.705814] pci 0000:00:09.0: BAR 0: reserving [io 0xc140-0xc17f flags 0x40101] (d=0, p=0)
> [ 2.706741] pci 0000:00:09.0: BAR 1: reserving [mem 0xfebf9000-0xfebf9fff flags 0x40200] (d=0, p=0)
> [ 2.707760] pci 0000:00:0a.0: BAR 0: reserving [io 0xc180-0xc1bf flags 0x40101] (d=0, p=0)
> [ 2.708713] pci 0000:00:0a.0: BAR 1: reserving [mem 0xfebfa000-0xfebfafff flags 0x40200] (d=0, p=0)
> [ 2.709722] pci 0000:00:0b.0: BAR 0: reserving [mem 0xfebfb000-0xfebfb00f flags 0x40200] (d=0, p=0)
> [ 2.710120] e820: reserve RAM buffer [mem 0x00093c00-0x0009ffff]
> [ 2.710804] e820: reserve RAM buffer [mem 0x0fffe000-0x0fffffff]
> [ 2.711485] device class 'net': registering
> [ 2.712021] device: 'lo': device_add
> [ 2.712814] Switching to clocksource kvm-clock
> [ 2.713705] Warning: could not register annotated branches stats
> [ 2.718231] bus: 'pnp': add driver system
> [ 2.718702] pnp: PnP ACPI init
> [ 2.719066] device: 'pnp0': device_add
> [ 2.719492] ACPI: bus type pnp registered
> [ 2.719492] IOAPIC[0]: Set routing entry (2-8 -> 0x38 -> IRQ 8 Mode:0 Active:0 Dest:3)
> [ 2.719492] device: '00:00': device_add
> [ 2.719492] bus: 'pnp': add device 00:00
> [ 2.719492] pnp 00:00: Plug and Play ACPI device, IDs PNP0b00 (active)
> [ 2.719492] IOAPIC[0]: Set routing entry (2-1 -> 0x31 -> IRQ 1 Mode:0 Active:0 Dest:3)
> [ 2.720192] device: '00:01': device_add
> [ 2.720647] bus: 'pnp': add device 00:01
> [ 2.721117] pnp 00:01: Plug and Play ACPI device, IDs PNP0303 (active)
> [ 2.721889] IOAPIC[0]: Set routing entry (2-12 -> 0x3c -> IRQ 12 Mode:0 Active:0 Dest:3)
> [ 2.722812] device: '00:02': device_add
> [ 2.723260] bus: 'pnp': add device 00:02
> [ 2.723732] pnp 00:02: Plug and Play ACPI device, IDs PNP0f13 (active)
> [ 2.724505] IOAPIC[0]: Set routing entry (2-6 -> 0x36 -> IRQ 6 Mode:0 Active:0 Dest:3)
> [ 2.725439] pnp 00:03: [dma 2]
> [ 2.725799] device: '00:03': device_add
> [ 2.726243] bus: 'pnp': add device 00:03
> [ 2.726720] pnp 00:03: Plug and Play ACPI device, IDs PNP0700 (active)
> [ 2.727530] IOAPIC[0]: Set routing entry (2-7 -> 0x37 -> IRQ 7 Mode:0 Active:0 Dest:3)
> [ 2.728433] device: '00:04': device_add
> [ 2.728877] bus: 'pnp': add device 00:04
> [ 2.729336] pnp 00:04: Plug and Play ACPI device, IDs PNP0400 (active)
> [ 2.730175] IOAPIC[0]: Set routing entry (2-4 -> 0x34 -> IRQ 4 Mode:0 Active:0 Dest:3)
> [ 2.731077] device: '00:05': device_add
> [ 2.731531] bus: 'pnp': add device 00:05
> [ 2.732001] pnp 00:05: Plug and Play ACPI device, IDs PNP0501 (active)
> [ 2.732947] device: '00:06': device_add
> [ 2.733407] bus: 'pnp': add device 00:06
> [ 2.733878] pnp 00:06: Plug and Play ACPI device, IDs PNP0103 (active)
> [ 2.734806] pnp: PnP ACPI: found 7 devices
> [ 2.735269] ACPI: ACPI bus type pnp unregistered
> [ 2.735795] INFO_MDMA: LNW DMA Driver Version 1.1.0
> [ 2.736339] bus: 'pci': add driver Intel MID DMA
> [ 2.736897] device class 'mem': registering
> [ 2.737387] device: 'mem': device_add
> [ 2.737979] device: 'null': device_add
> [ 2.738564] device: 'port': device_add
> [ 2.739130] device: 'zero': device_add
> [ 2.739686] device: 'full': device_add
> [ 2.740267] device: 'random': device_add
> [ 2.740863] device: 'urandom': device_add
> [ 2.741448] device: 'kmsg': device_add
> [ 2.741989] device: 'tty': device_add
> [ 2.742544] device: 'console': device_add
> [ 2.743130] bus: 'pcmcia': registered
> [ 2.743560] device class 'thermal': registering
> [ 2.748721] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7]
> [ 2.749342] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff]
> [ 2.749967] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff]
> [ 2.750708] pci_bus 0000:00: resource 7 [mem 0xe0000000-0xfebfffff]
> [ 2.751438] NET: Registered protocol family 1
> [ 2.751946] pci 0000:00:00.0: calling quirk_natoma+0x0/0x45
> [ 2.752584] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
> [ 2.753243] pci 0000:00:00.0: calling quirk_passive_release+0x0/0xb5
> [ 2.753963] pci 0000:00:01.0: PIIX3: Enabling Passive Release
> [ 2.754630] pci 0000:00:01.0: calling quirk_isa_dma_hangs+0x0/0x48
> [ 2.755311] pci 0000:00:01.0: Activating ISA DMA hang workarounds
> [ 2.756025] pci 0000:00:02.0: calling pci_fixup_video+0x0/0xdd
> [ 2.756697] pci 0000:00:02.0: Boot video device
> [ 2.757215] pci 0000:00:03.0: calling quirk_e100_interrupt+0x0/0x1d2
> [ 2.758007] PCI: CLS 0 bytes, default 64
> [ 2.758562] Unpacking initramfs...
> [ 3.350469] debug: unmapping init [mem 0xffff88000e8d6000-0xffff88000ffeffff]
> [ 3.374323] DMA-API: preallocated 65536 debug entries
> [ 3.374921] DMA-API: debugging enabled by kernel config
> [ 3.375909] device class 'cpuid': registering
> [ 3.376486] device: 'cpu0': device_add
> [ 3.377116] device: 'cpu1': device_add
> [ 3.377776] Registering platform device 'microcode'. Parent at platform
> [ 3.378666] device: 'microcode': device_add
> [ 3.379224] bus: 'platform': add device microcode

> git checkout 19f949f52599ba7c3f67a5897ac6be14bfcb1200
> Previous HEAD position was 1eea8bb... i2o: check copy_from_user() size parameter
> HEAD is now at 19f949f... Linux 3.8
>
> 2013-03-02-10:53:31 19f949f52599ba7c3f67a5897ac6be14bfcb1200 compiling
> /home/wfg/tip
>
> 2013-03-02-10:58:25 detecting boot state 3.8.0-bisect2 #59 5.. 15 16. 18 26 27. 31 37 38 39 45 48 49 53 58 60. 65 69 71 73 78 80 82 85 91. 93 98 102. 106 110 113. 118 121 124 125 130 134 135. 141 146. 148 152 156 157 159 165 166 167 172 177. 178 184 188. 190 195 198 199 203 207 209 211 215 219 220 222 227 230 231 235 238 241 242 246 250 252 253 258 263. 265 270 273 274 277 281 284 286 288 293 295 296 302 305 306 308 313 316 317 320 324 327 330 333 338. 341 345 349. 352 356 360 361 364 368 371 373 376 381 382 384 388 392 393 395 400 403 405 408 412 414 416 419 424 425 427 432 435 436 439 443 446 447 450 456 457 459 462 467 468 470 474 478 479 482 485 488 490 493 498 499 502 506 510 511 512 517 520 522 525 529 531 534 537 541 542 544 549 552 554 556 561 563 566 568 573 574 577 580 585. 588 591 596 598 600 604 607 609 613 617 618 620 624 628 629 632 636 639 642 646 649 650 653 657 660 661 664 669 672 673 677 682 683 684 688 693 694 696 700 704 705 708 712 715 717 720 725 727 729 732 737. 740 744 747 749 753 75
> 7 758 760 764 768 769 772 776 779 780 783 788 790 791 795 799 801 804 808 810 812 814 819 822 823 827 831 833 835 838 842 844 846 849 853 854 859 862 864 866 870 873 875 877 881 885 886 891 892 896 897 902 905 907 909 913 916 918 920 924 927 929 933 936 939 940 945 947 950 952 956 959 961 964 969 970 971 976 980 982. 987 991 993 996 998 1002 1003 SUCCESS
> bisect: good commit 19f949f52599ba7c3f67a5897ac6be14bfcb1200
> git bisect start 1eea8bb261e8d43492c91d516d97cf96cdac7a3b 19f949f52599ba7c3f67a5897ac6be14bfcb1200 --
> Previous HEAD position was 19f949f... Linux 3.8
> HEAD is now at 3c0eee3... Linux 2.6.37
> Bisecting: 32 revisions left to test after this (roughly 5 steps)
> [09bca78e81d0ba702b601e09fd887e20c32fc7af] block: restore /proc/partitions to not display non-partitionable removable devices
> git bisect run /c/kernel-tests/bisect-test-boot-failure.sh obj-bisect-x86_64
> running /c/kernel-tests/bisect-test-boot-failure.sh obj-bisect-x86_64
>
> 2013-03-02-13:54:27 09bca78e81d0ba702b601e09fd887e20c32fc7af compiling
> /home/wfg/tip
>
> 2013-03-02-14:24:32 detecting boot state 3.8.0-bisect2-00033-g09bca78 #60 6 14 22 31 42 50 60 67 74 83 93 103 111 120 126 136 145 155 166 173 182 189 198 209 219 228 236 243 252 262 271 281 288 295 303 314 324 333 343 351 359 369 378 388 399 409 415 423 434 444 455 464 472 481 490 500 509 519 530 537 545 553 563 572 581 589 599 605 613 623 630 640 648 655 663 670 679 688 696 704 711 718 728 735 745 753 762 769 777 786 795 803 812 820 829 836 844 854 863 872 881 891 900 912 922 932 942 948 955 965 975 985 993 SUCCESS
> Bisecting: 16 revisions left to test after this (roughly 4 steps)
> [b4a2adc2b273b37274b5a74fc0995927f44fe773] mm/dmapool.c: fix null dev in dma_pool_create()
> running /c/kernel-tests/bisect-test-boot-failure.sh obj-bisect-x86_64
>
> 2013-03-02-15:22:03 b4a2adc2b273b37274b5a74fc0995927f44fe773 compiling
> /home/wfg/tip
>
> 2013-03-02-15:27:12 detecting boot state 3.8.0-mm1-bisect2-00049-gb4a2adc #61 3.. 9 13. 14 21 23. 27 31 33. 39 41 43 44 50 51 53 55 61. 63 67 71. 73 79 81 82 85 90 91 92 96 101. 102 107 111.. 119 121.. 130 131. 132 141.. 146 151.. 156 161.. 166 171. 172 178 181. 185 189 191. 196 199 201 203 207 209 210 213 218 219. 224 229.. 234 239. 241 247 249. 251 257 259. 262 267 269. 272 277 278 280 284 287. 292 295 297. 301 307.. 310 316 317 318 323 326 327 329 333 335 336 340 345. 346 349 355. 356 361 364 365 367 371 373 375 378 382 383 384 388 393. 394 398 403. 405 410 413. 416 421 423. 427 431 432 434 437 441 442 445 448 450 451 454 458 459 460 464 467 468 469 472 476 477 478 481 484 485 488 492 493 495 496 502. 503 507 511. 512 516 520 521. 525 528 530 531 536. 539 541 545. 548 552 554. 558 561 563. 567 571 572. 574 581.. 585 589 590. 595 597. 601 604 606. 609 614 615. 618 623 624. 627 631 633 634 638 640 642 644 648 649 650 653 658. 660 663 667. 668 673 676. 678 682 684 685 687 692 693. 697 701. 702 708 710. 711
> 716 719. 721 726 727 728 732 735 736 738 742 744. 746 751 753. 756 761 762. 765 769 771. 775 777 780 781 785 787 788 791 794 796. 800 805.. 810 814. 815 820 823. 825 828 832. 835 839. 841 845 848. 849 855 857. 858 865 866. 870 874 875. 879 884. 885 888 893. 895 897 901 902 906 908 910 911 915 918 920 921 924 927 929 931 934 936 939 941 944 945 948 950 954. 958 960 963. 967 969 972. 976 979 981 982 985 989 990 992 995 999. 1002 SUCCESS
> Bisecting: 8 revisions left to test after this (roughly 3 steps)
> [0c2e1aacdc87c3ecf16cf26e8b3476c6203d03e2] printk: avoid softlockups in console_unlock()
> running /c/kernel-tests/bisect-test-boot-failure.sh obj-bisect-x86_64
>
> 2013-03-02-18:55:32 0c2e1aacdc87c3ecf16cf26e8b3476c6203d03e2 compiling
> /home/wfg/tip
>
> 2013-03-02-18:58:38 detecting boot state 3.8.0-mm1-bisect2-00057-g0c2e1aa #62 TEST FAILURE
> Bisecting: 3 revisions left to test after this (roughly 2 steps)
> [641feee3e6eeb680efcf5c6f625bb2cb4fcfc52c] early_printk: consolidate random copies of identical code
> running /c/kernel-tests/bisect-test-boot-failure.sh obj-bisect-x86_64
>
> 2013-03-02-18:59:09 641feee3e6eeb680efcf5c6f625bb2cb4fcfc52c compiling
> /home/wfg/tip
>
> 2013-03-02-19:01:28 detecting boot state 3.8.0-mm1-bisect2-00053-g641feee #63 2.. 11.. 13 20.. 28 29. 31 38.. 44 47. 49 55 56. 59 64 65. 71 73 74 76 80 81 83 85 90. 92 96 99 100 101 106 108 109 111 117. 118 121 126. 127 133 135. 137 143 144. 147 152 153. 157 162.. 168 171.. 179 180.. 189.. 192 198.. 202 207.. 214 216. 217 225.. 228 234.. 238 242 243 244 249 252. 253 258 261. 265 267 270. 275 277 279 280 285 286 288 289 294 295 297 299 304. 306 310 313. 315 321 322. 324 330 331. 333 339 340. 344 349. 350 356 358. 359 365 367. 368 375 376. 378 384 385 386 390 393 394 395 400 403. 404 410 412 413 414 420 421 422 428 430. 432 437 439. 442 446 448 449 455 456 457 458 464 465 466 468 473 474 476 479 482 484 485 491. 493 495 500. 502 505 509. 511 515 518 519 521 526 527. 530 536.. 541 545.. 552 554. 555 563.. 564 572.. 576 581.. 585 590. 591 596 599. 602 606 608. 612 615 617. 622 624 626. 631 633 635 639 641 643 644 648 651 652 653 657 660 661 663 667 669 670 674 677 678 679 684 687. 688 693 696. 697 703 705. 708
> 712 714. 718 722 723. 729 732.. 738 741. 743 747 750. 753 756 758 759 763 765 766 768 773 775. 778 782 784. 787 791 793. 797 800 802. 806 808 811 814 816 818 819 823 826 827 829 833 835 836 838 842 844 845 848 853 854. 857 862 863. 866 871 872 873 877 880 881 883 887 889 890 893 896 899. 903 905 908 909 912 914 917 919 922 923 926 929 932 934 935 939 941 943 945 948 950 951 954 958 959 960 964 968 969. 973 976 978. 982 985 987 989 993 994 996 998 SUCCESS
> Bisecting: 1 revision left to test after this (roughly 1 step)
> [8a7d64347f4144f2e93745ba971809ca843887ae] include/linux/fs.h: disable preempt when acquire i_size_seqcount write lock
> running /c/kernel-tests/bisect-test-boot-failure.sh obj-bisect-x86_64
>
> 2013-03-02-22:33:53 8a7d64347f4144f2e93745ba971809ca843887ae compiling
> /home/wfg/tip
>
> 2013-03-02-22:35:35 detecting boot state 3.8.0-mm1-bisect2-00055-g8a7d643 #64 1 3 7 10 11 12 17 19 20. 26 28 29 31 34 38. 41 43 46 47 51 53 55 57 60 62 64 66 70 72. 76 80 81 82 88 89 90 91 97 98 99 102 106 108. 113 115 117 118 124 125 126 127 133 135. 139 143 144. 149 152 153 154 158 162. 164 167 171. 175 177 180. 185 186 189 190 194 195 198 201 203 204 205 211 213 214 215 221 222 223 224 228 231 232 233 237 240 241 244 246 248 250 255. 257 259 264 265 266 267 273 274 275 279 281 283 284 289 290 293. 298 299 302 303 307 308 309 314 317. 318 325 326 327. 333 335 336. 341 344 345 347 351. 354 359 360. 363 368 369 370. 377 378 379 380 386 387 388 392 395 396 397 402 403 405 407 411 412 413 416 420 421 422 429 430. 431 437 439. 440 445 448. 450 455 457. 460 464 466 467 472 473 475 476 481 482. 485 491.. 496 500. 501 508 509. 510 516 518. 520 527.. 530 536. 537 542 545. 547 551 554. 557 561 563 564 567 570 572 573 578 579 581 583 588. 589 593 597. 598 605 606. 607 612 615. 617 621 622 624 627 631. 633 638 640. 6
> 42 648 649. 652 657 658. 661 666 667. 672 675 676 678 682 683 685 688 691 692 694 697 700 701 703 706 710. 712 718 719. 723 727 728. 732 737.. 742 746. 748 750 754 755 758 761 762 763 767 770 771 773 776 780. 782 785 789. 793 794 798. 801 805 806 808 810 815. 818 820 823 824 828 829 833. 837 839 842. 847 850. 853 855 859. 863 864 868. 872 873 877. 881 884 885 888 891 894 895 897 900 903 904 907 910 912 914 917 920 921 924 926 929 930 933 935 938 939 942 945 947 949 952 956. 958 961 965. 969 970 974. 978 979 983 984 988. 992 994 997 1000 1001 1004 1006 SUCCESS
> Bisecting: 0 revisions left to test after this (roughly 0 steps)
> [6e1078c01b2e145140e7e8ce341c427b8be1eec3] kernel/smp.c: cleanups
> running /c/kernel-tests/bisect-test-boot-failure.sh obj-bisect-x86_64
>
> 2013-03-03-02:13:24 6e1078c01b2e145140e7e8ce341c427b8be1eec3 compiling
> /home/wfg/tip
>
> 2013-03-03-02:17:55 detecting boot state 3.8.0-mm1-bisect2-00056-g6e1078c #65 2 5 7 10 11 14 18 19 22 23 27 28 32 33 37. 41 42 46. 50 53 55 56 59 63 64 65 69 72 73 76 78 81 82 86 89 90 92 94 99. 102 103 108. 111 113 117. 121 124 126. 130 134 135 136 140 143 144 146 149 152 153 156 161 162 163 166 170 171 173 175 179 180 182 184 188 189 192 195 197 199 202 204 206 209 211 214 215 218 221 223 224 227 231 232 235 238 240 241 244 247 249 250 253 257 259. 262 266 268 269 272 275 277 279 282 285 286 288 292 295. 297 301 304. 307 311 313 315 317 321 322 324 326 330 331 333 336 339 340 343 347 348 350 352 356 357 360 362 365 367 369 373 374 376 380 383 384 386 389 392 393 396 400 401 404. 410. 413 414 419. 421 423 427 428 430 435 436 438 440 445. 448 449 454. 457 459 463. 466 471 472 473 475 480 481 483 485 489 490 492 494 498. 501 504 507. 510 514 516 517 520 524 525 526 529 533 535 536 540 543 544 545 550 552 553 554 559 562 563 566 569 571 572 576 578 580 581 586 587 589 591 595 596 599 602 605. 608 612 614 615
> 617 621 623 625 627 630 632 634 636 640 641 644 648 649 650 654 657 658 660 663 667. 669 673 676. 679 684 685 686 688 694. 695 698 703. 705 709 712 713 716 721. 722 725 730. 734 737 739 740 743 747. 749 751 756. 758 761 765. 767 771 774 775 778 781 782 784 786 791. 793 797 800. 802 806 809. 813 815 818 819 822 826. 828 831 835 836 837 841 844. 847 850 852 853 857 860 861 863 867 870. 872 876 879 880 882 885 888 890 891 895 896 899 901 904. 908 911 913. 916 921 922 923 927 931. 933 935 939 940 942 944 947 949 951 954 956 959 961 964 965 967 971 974. 976 980 983. 986 990 992 994 995 1000 1001 1003 SUCCESS
> 0c2e1aacdc87c3ecf16cf26e8b3476c6203d03e2 is the first bad commit
> commit 0c2e1aacdc87c3ecf16cf26e8b3476c6203d03e2
> Author: Jan Kara <jack@suse.cz>
> Date: Sat Mar 2 00:02:38 2013 +0000
>
> printk: avoid softlockups in console_unlock()
>
> A CPU can be caught in console_unlock() for a long time (tens of seconds
> are reported by our customers) when other CPUs are using printk heavily
> and serial console makes printing slow. Despite serial console drivers
> are calling touch_nmi_watchdog() this triggers softlockup warnings because
> interrupts are effectively disabled for the whole time printing takes
> place. Thus IPIs cannot be processed and other CPUs get stuck spinning in
> calls like smp_call_function_many(). Also RCU eventually starts reporting
> lockups.
>
> In my artifical testing I also managed to trigger a situation when disk
> disappeared from the system apparently because commands to / from it could
> not be delivered for long enough. This is why just silencing watchdogs
> isn't a reliable solution to the problem.
>
> One part of fixing the issue is changing vprintk_emit() to call
> console_unlock() with interrupts enabled (this isn't perfect as printk()
> itself can be called with interrupts disabled but it improves the
> situation in lots of cases). Another part is limiting the time we spend
> in console_unlock() printing loop to watchdog_thresh() / 4. Then we
> release console_sem and wait for watchdog_thresh() / 4 to give a chance to
> other printk() users to get the semaphore and start printing. If printk()
> was called with interrupts enabled, it also gives CPU a chance to process
> blocked interrupts. Then we recheck if there's still anything to print,
> try to grab console_sem again and if we succeed, we go on with printing.
>
> Signed-off-by: Jan Kara <jack@suse.cz>
> Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
> Cc: Steven Rostedt <rostedt@goodmis.org>
> Cc: Ingo Molnar <mingo@elte.hu>
> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
>
> :040000 040000 ffde7b97e814777db334b9d14a72ff41a1612b1d d83648edef86c15175d484ef5526cdd52d0c92e7 M include
> :040000 040000 0c1b4cc9e75164ffbc3608b3996a9781ebc1f3ef 2bd172270dee9f350accd890afd3b07f78412274 M kernel
> bisect run success
>
> 2013-03-03-05:52:39 6e1078c01b2e145140e7e8ce341c427b8be1eec3 compiling
> /home/wfg/tip
>
> 2013-03-03-05:55:51 detecting boot state 3.8.0-mm1-bisect2-00056-g6e1078c #65 2 5 8 9 12 14 18 19 21 23 26 28 31 33 35 38 41 43. 48 50 52 53 57 59 61 63 66 68 70 72 74 77 79 82 84 86 89 91 93 95 98 101 102 104 106 111. 113 116 119 120 124 126 127 131 133 135 136 138 143 145. 147 152 154 155 156 162 163 165 167 171 172 174 177 179 181 183 186 188 192. 196 197 201 202 205 206 209 213 214 215 217 222 224 225 226 231 233 235 237 239 242 244 247 248 252 253 256 257 260 263 265 267 269 274. 276 278 281 285. 289 290 294 295 298 299 303 305 307 308 310 314 316 319. 323 326 328 330 332 334 337 339 341 343 346 348 350 353 356 358 360 362 365 368 369 371 373 376 378 380 382 385 389 390 392 395 398 400 402 404 407 409 411 414 416 418 421 424 426 429 430 433 435 438 439 442 444 448. 451 453 457 459 461 464 466 468 470 473 474 477 479 482 484 486 488 491 494 497 498 501 503 506 508 510 513 514 517 520 523 524 526 529 532 534 536 539 541 543 546 548 550 552 556 558 559 561 565 567 570 571 575 576 579 582 584 585 588 591 5
> 94 596 598 600 603 605 608 610 612 614 617 619 621 623 627 629 632 633 637 638 641 643 646 647 650 652 655 657 660 661 664 667 669 671 674 676 679 680 683 685 688 690 693 694 698 699 703 704 708. 712 715 717 720 721 725 726 730 732 734 735 739 742 743 745 749 751 753 757 759 761 762 766 768 771 773 775 778 780 782 785 787 789 792 795 797 798 801 804 806 809 810 814 815 818 821 824 825 828 830 833 835 837 839 842 845 847 849 851 854 856 859 860 863 866 868 869 873 876 877 879 882 886. 888 891 895. 898 902 904. 908 912 913 914 917 922. 924 926 930 931 933 937 939 940 942 947 948 950 952 956 957 960 962 965 966 969 971 974 975 978 983. 984 987 992. 994 997 1001. 1003 1007 1010. 1013 1019. 1020 1022 1028. 1030 1032 1037. 1039 1044 1046 1047 1049 1053 1055 1056 1058 1063 1064 1067 1069 1072 1074 1076 1079 1081 1084 1085 1089 1090 1094. 1098 1100 1103 1105 1107 1110 1112 1115 1116 1120 1121 1124 1125 1129 1131 1134. 1138 1140 1143 1145 1146 1150 1152 1154 1155 1159 1161 1164 1166 1169 1170 1173 1175 1178 1181 1183
> 1184 1187 1190 1192 1194 1197 1199 1202 1203 1206 1209 1211 1214 1216 1219 1221 1223 1225 1229 1231 1232 1236 1238 1240 1241 1245 1247 1249 1251 1256 1257 1258 1261 1265 1266 1267 1271 1274 1276. 1280 1283 1285. 1291 1292 1294 1296 1299 1302 1303 1306 1308 1312. 1315 1319 1321 1322 1326 1328 1330 1332 1335 1338 1339 1342 1344 1347 1348 1351 1354 1356 1358 1360 1363 1366 1368 1371 1373 1375 1378 1380 1383 1384 1387 1390 1392 1395 1398 1401. 1405 1408 1410 1413 1414 1417 1419 1422 1425 1428. 1431 1435 1436 1438 1440 1445. 1448 1450 1454. 1457 1459 1463. 1467 1471 1472 1474 1476 1480 1481 1483 1486 1489 1490 1492 1495 1498 1499 1502 1504 1507 1509 1512 1514 1516 1519 1521 1524 1525 1527 1530 1533. 1538 1541 1542. 1547 1550 1551 1553 1556 1559 1560 1563 1564 1568. 1572 1573 1576 1577 1582 1584 1585 1588 1591 1594. 1598 1600 1603. 1607 1609 1612 1614 1617 1619 1621 1623 1626 1629 1630 1633 1635 1638 1640 1642 1644 1647 1648 1652 1653 1656 1658 1661 1662 1665 1668 1670 1673 1674 1678. 1682 1684 1686 1688 1691 169
> 4 1695 1699. 1703 1704 1707 1709 1712 1714 1716 1717 1721 1722 1725 1728 1730 1732 1733 1737 1738 1742. 1747. 1751 1752 1756 1757 1760 1764 1765 1767 1769 1773 1774 1778. 1783. 1786 1788 1792 1793 1795 1799 1801 1804. 1809 1810 1813. 1818 1819 1822 1823 1827 1828 1831 1833 1836 1839 1840 1844 1845 1848 1849 1853 1855 1857 1858 1862 1864 1866 1869 1871 1875. 1879 1881 1884. 1889 1891 1893 1894 1898 1900 1902 1905 1907 1911. 1915 1917 1920. 1925 1926 1929. 1934 1937 1938 1941 1944 1946 1947 1950 1953 1955 1956 1960 1963 1964 1968 1969 1973. 1977 1980 1982 1984 1987 1989 1991 1995 1997 1999 2000 2004 2006 2009 2010 2015. 2018 2021 2024 2025 2027 2030 2033 2034 2036 2039 2042 2044 2046 2050 2052 2053 2056 2059 2061 2062 2065 2068 2070 2071 2075 2077 2080 2082 2085 2086 2089 2091 2095. 2098 2100 2104 2106 2108 2109 2112 2115 2118 2120 2121 2124 2126 2130 2131 2132 2135 2138 2140 2142 2145 2147 2149 2152 2154 2157 2158 2161 2164 2166 2168 2171 2173 2175 2177 2180 2182 2185 2187 2190 2192 2195 2196 2200 2201 2204 2
> 206 2209 2212 2213 2216 2218 2221 2223 2225 2227 2231 2233 2235 2237 2240 2242 2245 2246 2249 2251 2254 2256 2260 2262 2264 2266 2269 2271 2273 2275 2278 2280 2282 2284 2287 2289 2293 2294 2296 2298 2302 2304 2307 2308 2311 2313 2316 2317 2320 2322 2325 2326 2330 2332 2335 2337 2340 2341 2344 2346 2349 2351 2353 2356 2358 2360 2362 2365 2367 2370 2372 2376 2377 2379 2381 2385 2387 2389 2392 2394 2396 2398 2401 2403 2405 2407 2411 2412 2415 2418 2420 2422 2425 2428 2430 2432 2434 2437 2439 2442 2443 2447 2448 2451 2454 2456 2458 2461 2463 2465 2468 2470 2473 2475 2478 2480 2483 2485 2487 2489 2492 2494 2496 2499 2501 2503 2505 2509 2510 2513 2515 2518 2519 2523 2524 2528 2529 2532 2534 2537 2539 2541 2544 2546 2549 2551 2554 2555 2558 2560 2564 2565 2568 2570 2573 2576 2578 2582 2583 2585 2588 2591 2592 2595 2597 2600 2601 2605 2606 2609 2611 2614 2616 2619 2621 2623 2625 2628 2630 2633 2635 2637 2640 2642 2645 2647 2649 2651 2654 2656 2658 2659 2663 2665 2667 2668 2672 2674 2677 2678 2681 2684 2685 2688 2692
> 2693 2694 2698 2700 2702 2703 2707 2709 2712. 2717 2718 2721 2722 2726 2729 2730 2732 2736 2738 2739 2742 2745 2748. 2753 2754 2757 2758 2763 2764 2766 2767 2772 2773 2775 2776 2781 2784. 2786 2790 2792 2793 2798 2799 2801 2802 2807 2809 2810 2812 2816 2818 2819 2822 2825 2828. 2833 2835 2837 2838 2843 2844 2846 2847 2852 2853 2855 2856 2861 2864 2865 2868 2871 2873 2874 2879 2880 2882 2883 2888 2889 2892 2896 2898 2899 2901 2906 2907 2910. 2915 2916 2919 2922 2925 2926 2928 2933 2934 2936 2937 2942 2943 2946. 2952. 2955 2956 2961. 2964 2969 2970. 2973 2978 2979 2980 2982 SUCCESS
>
> 2013-03-03-16:30:57 67e51ff72caec0de0c3673303c0e7ee935ef80d8 compiling
> /home/wfg/tip
>
> 2013-03-03-16:33:47 detecting boot state 3.8.0-mm1-bisect2-00187-g67e51ff #66 2 TEST FAILURE
> ERROR# 1: /c/kernel-tests/bisect:58: main: $BISECT_TEST $KBUILD_OUTPUT
> [detached HEAD 52efcaa] Revert "printk: avoid softlockups in console_unlock()"
> 2 files changed, 6 insertions(+), 56 deletions(-)
>
> 2013-03-03-16:34:48 52efcaa3b551117572315f73c5e787f65c734493 compiling
> /home/wfg/tip
>
> 2013-03-03-16:35:54 detecting boot state 3.8.0-mm1-bisect2-00188-g52efcaa #67 3.. 11 12.. 20 21. 22 29 30. 36 38 39. 46 47 48. 55 56 57 58 64 65 66 72 73 75. 82 83 84 85 91 92 93 98 100 102. 108 109 111. 118 119 120 121 127 128 129 133 136 137 138 144 145 147. 154 155 156 158 163 164 165 167 172 174. 178 181 183 184 190 191 192 194 199 200 201 204 208 209 211 213 217 218 221 224 227. 230 234 236 237 239 243 245 247 250 253 254 257 260 262 264 266 270 272 273 278 280 282 284 288 290 291 293 298 299 300 305 307 308 309 315 317. 320 325 326 327 329 334 335 336 340 343 344 345 352. 353 356 361. 362 365 370. 371 377 379. 380 388. 389 391 397. 398 401 406. 407 412 415. 416 423 424. 426 432 433 434 437 442 443. 449 451 452 455 460. 461 467 469 470 473 478 479. 485 487 488 490 496. 497 503 505 506 507 513 514 515 519 523 524. 531 532 533 534 540 541 542 545 550 551. 556 559 560. 566 568 569 571 575 577 578 580 585 586 587 592 594 595 596 602 603 604 606 611 613. 616 620 622. 627 629 631 632 637 639 640 642 647 648
> 649 652 656 657 658 662 665 666 667 672 674 675 677 682 684. 688 692 693 694 698 702. 705 709 711 712 718 720. 722 727 729. 733 737 738 739 742 746 747 748 753 756. 757 762 765. 768 772 774. 777 782 783. 789 792. 793 798 801. 803 807 810. 814 817 819. 824 826 828. 834 837. 841 843 846. 851 853 855. 860 862 864 865 870 871 873 878 880 882 883 888 889 891 895 898 899 901 906 907 908 913 915 917 918 923 925 926 928 932 934 935 938 942 943 944 950 951 952 954 959 960 961 964 969 970. 974 978 979 981 984 987 988 990 994 997. 999 1005 1006. 1008 1014 1015 1016 1018 1023 1024 1025 1030 1033. 1035 1040 1042. 1044 1049 1051 1052 1056 1059 1060 1061 1065 1068 1069 1070 1075 1078. 1082 1084 1087 1088 1092 1094 1096 1097 1102 1104 1106. 1111 1114 1115 1117 1120 1123 1124 1127 1130 1132 1133 1137 1140 1141 1142 1147 1149 1151 1152 1156 1158 1160 1162 1165 1168 1169 1171 1175 1178. 1181 1185 1187 1188 1192 1194 1196 1198 1201 1203 1205 1207 1210 1212 1214 1217 1220 1222 1225 1226 1230 1231 1234 1236 1238 1240 1244 1245 12
> 47 1249 1253 1255 1256 1260 1263 1265. 1269 1272 1274 1275 1278 1281 1283 1287 1288 1291 1292 1296 1298 1301 1302 1305 1307 1310 1312 1314 1317 1319 1322 1324 1327 1329 1332 1334 1337 1339 1341 1344 1347 1349 1351 1355 1357 1358 1361 1364 1366 1368 1370 1373 1375 1378 1381 1383 1384 1387 1390 1393 1394 1397 1400 1402 1405 1406 1409 1411 1414 1416 1419 1420 1423 1426 1429. 1432 1435 1438 1439 1442 1445 1447 1448 1452 1455 1456 1458 1462 1464 1465 1468 1471 1474 1475 1480 1481 1483 1485 1489 1491 1492 1494 1498 1500 1501 1507 1509. 1512 1516 1518 1519 1522 1525 1527 1528 1533 1535 1536 1537 1542 1545. 1547 1552 1554. 1558 1561 1563 1564 1569 1572. 1573 1578 1581. 1583 1588 1590. 1593 1597 1599. 1605 1608. 1609 1614 1617. 1619 1623 1626. 1631 1633 1635 1636 1641 1643 1644 1645 1650 1653. 1656 1659 1662. 1668. 1671. 1677 1679 1680 1682 1686 1689. 1693 1695 1698. 1704 1705 1707 1708 1713 1715 1716 1717 1722 1725. 1729 1732 1734 1735 1739 1741 1743 1744 1748 1751 1752 1755 1757 1760 1762 1765 1767 1769 1771 1774 1
> 777 1779 1780 1784 1787 1789 1790 1793 1796 1798 1801 1804 1805 1807 1811 1813 1815 1816 1820 1822 1824 1827 1829 1831 1833 1837 1839 1841 1842 1846 1848 1850 1852 1855 1858 1860 1862 1865 1867 1869 1872 1875 1876 1878 1881 1884 1886 1887 1891 1894 1895 1898 1902 1903 1905 1909 1911 1913 1917 1920 1921 1922 1926 1929 1930 1932 1937 1938 1940 1943 1946 1947 1949 1953 1955 1957 1958 1962 1965 1966 1969 1972 1974 1976 1980 1982 1984 1985 1989 1991 1993 1996 1998 2001 2003 2006 2008 2011 2012 2016 2018 2020 2021 2025 2028 2029 2031 2034 2038 2039 2043 2046 2047 2049 2052 2056 2057 2061 2064 2065 2068 2071 2074 2075 2078 2082 2084 2086 2089 2092 2094 2097 2101 2102 2104 2108 2110 2113 2116 2119 2120 2124 2127 2128 2131 2134 2137 2138 2142 2145 2147 2149 2153 2155 2157 2161 2164 2165 2168 2171 2173 2176 2180 2182 2183 2187 2191. 2194 2198 2200 2202 2205 2209 2210 2213 2216 2218 2220 2224 2227 2228 2232 2234 2236 2239 2242 2245 2246 2250 2253 2254 2257 2261 2263 2265 2269 2272 2273 2275 2279 2281 2284 2287 2290 229
> 1 2295 2297 2299 2302 2305 2307 2309 2312 2314 2316 2318 2322 2324 2326 2328 2331 2334 2336 2338 2341 2343 2345 2348 2351 2352 2354 2357 2360 2361 2364 2368 2369 2372 2374 2377 2378 2381 2384 2387 2388 2391 2394 2396 2398 2400 2405. 2408 2410 2414. 2418 2420 2423. 2427 2430 2432 2434 2436 2439 2441 2444 2447 2450. 2454 2456 2459 2460 2463 2466 2468 2471 2472 2476 2477 2481 2482 2486. 2490 2493 2495 2496 2499 2502 2504 2507 2509 2512 2513 2517 2521 2522 2526 2527 2530 2531 2535 2539 2540 2544 2547 2549 2550 2553 2557 2558 2562 2565 2567 2569 2573 2575 2576 2580 2583 2585 2588 2591 2593 2594 2598 2600 2603 2604 2607 2610 2612 2615 2618 2620 2621 2625 2628 2630 2632 2635 2638 2639 2642 2645 2648 2649 2652 2654 2657 2659 2662 2664 2666 2669 2671 2674 2675 2678 2680 2683 2685 2688 2689 2693 2695 2698 2700 2702 2704 2707 2710 2711 2713 2716 2720. 2724 2725 2729 2731 2733 2737 2738 2740 2743 2746 2747 2751 2752 2756 2757 2760 2763 2765 2767 2770 2773 2774 2776 2779 2782 2783 2786 2788 2791 2792 2795 2799 2800 2803
> 2805 2809. 2812 2814 2818. 2822 2823 2827 2828 2832 2835 2836 2837 2841 2845. 2849 2850 2854 2855 2857 2860 2863 2864 2868 2871 2872 2873 2877 2880 2881 2883 2887 2890. 2894 2897 2899 2900 2903 2906 2908 2909 2912 2916 2917 2918 2923 2925 2926 2928 2933 2935 2936 2939 2942 2944 2945 2948 2951 2953 2954 2960 2961 2962 2964 2969 2970 2971 2975 2978 2979 2980 2985 2988 2989 2990 2995 2997 2998 3001 SUCCESS
>
> ========= linux-next =========
> Fetching next
>
> 2013-03-04-02:57:27 106edea2fe051df65a1a6231e9ffa2876cc391cc compiling
> /home/wfg/tip
>
> 2013-03-04-03:00:53 detecting boot state 3.8.0-bisect2-next-20130301 #68 2 3 6 9 11 13 16 20. 22 27 29 30 32 36 38 39 43 46 47 48 53 56 57 58 63 65 66 69 72 74 75 79 82 83 84 88 91 92 94 99 100 101 106 109. 111 118. 119 123 127. 128 133 136. 138 144 145 146 148 154. 155 160 163. 164 171 172. 174 181.. 184 190.. 195 199. 200 207 208. 210 217.. 221 226.. 231 235.. 242 244.. 253.. 255 262.. 267 271.. 280.. 282 289.. 297 298.. 307.. 308 316.. 319 325.. 333 334.. 343.. 344 352.. 356 361.. 367 370. 371 379.. 382 388.. 392 397. 398 403 406. 407 413 415. 418 424. 425 428 433. 434 440 442. 443 449 451. 455 458 460 461 464 468 469 472 476 478. 482 485 487. 491 494 496 498 501 505. 508 512 514. 518 521 523 524 527 530 532 535 537 539 541 544 548. 551 553 557. 562 563 566 568 571 574 575 578 580 584. 588 589 593. 598 601 602. 607 611. 612 616 620. 625. 629. 634 636 638. 642 647. 649 650 656. 659. 665. 668 672 674 675 677 681 683 685 686 690 692 695 696 699 702 704 706 708 711 713 717. 722 723 726 727 731 732 735 738 74
> 0 742 744 749. 753. 756 759 762 763 765 769 771 774. 780. 783. 789 790 792 793 798 799 801 805 807 809 810 816. 818 819 825 826 828 830 834 835 837 839 843 846. 850 853 855 857 861 862 864 867 870 871 873 876 880 882 883 886 889 891 894 895 898 900 903 905 908 909 912 916 917 918 921 925 927 930 931 934 936 939 941 944 945 948 950 953 954 957 961 963 965 967 971 972 975 977 980 981 984 987 990. 993 997 999 1001 1003 1006 1008 1011 1012 1015 1017 1020 1023 1026. 1029 1033 1035 1037 1039 1042 1044 1047 1048 1051 1053 1056 1057 1062 1063 1065 1067 1071 1072 1074 1077 1080 1082 1084 1088 1089 1092 1093 1098. 1101 1102 1107 1108 1110 1113 1116 1119 1120 1122 1125 1128 1129 1131 1134 1137 1139 1143 1146. 1149 1151 1155 1156 1158 1159 1164 1166 1167 1170 1173 1176 1177 1180 1182 1185 1186 1189 1191 1194 1196 1198 1202 1204 1206 1208 1212 1213 1216 1218 1221 1222 1225 1227 1230 1232 1234 1237 1240 1243. 1248 1249 1252 1254 1257 1258 1261 1264 1267 1269 1270 1275 1276 1279. 1284 1285 1288 1289 1294 1295 1297 1300 130
> 3 1305 1306 1311 1312 1315. 1320 1322 1324. 1330 1332 1333 1336 1339 1342. 1345 1348 1351. 1355 1358 1360 1361 1365 1368 1369 1370 1374 1378. 1382 1384 1387 1388 1391 1394 1396 1397 1400 1403 1405 1409 1411 1414 1415 1418 1420 1423 1424 1427 1430 1432 1434 1437 1439 1441 1444 1447 1449 1451 1454 1457 1459 1460 1464 1466 1468 1470 1474 1475 1477 1480 1483 1485 1487 1490 1492 1494 1496 1499 1502 1504 1506 1510 1511 1513 1516 1519 1520 1523 1526 1528 1530 1532 1536 1538 1539 1542 1546 1547 1549 1551 1555 1557 1558 1562 1564 1566 1567 1571 1574 1575 1577 1581 1582 1585 1586 1590 1592 1594 1597 1599 1602 1603 1606 1609 1611 1613 1616 1619 1621 1622 1625 1628 1630 1633 1634 1637 1639 1642 1645 1647 1649 1652 1654 1656 1658 1661 1664 1666 1669 1670 1673 1676 1678 1680 1683 1685 1688 1689 1692 1695 1697 1700 1701 1704 1706 1710 1711 1714 1715 1719 1720 1724 1725 1728 1730 1733 1735 1737 1740 1742 1746 1747 1751 1752 1755 1756 1760 1761 1764 1766 1769 1771 1774 1777 1778 1781 1783 1787 1788 1790 1792 1796 1798 1801 1
> 802 1805 1807 1810 1812 1814 1817 1819 1821 1824 1826 1829 1831 1834 1836 1839 1841 1843 1845 1848 1850 1853 1854 1857 1860 1862 1864 1867 1870 1872 1875 1876 1879 1881 1884 1885 1889 1890 1894 1896 1898 1901 1903 1905 1908 1910 1912 1915 1917 1921. 1925 1926 1930 1932 1935 1936 1939 1941 1944 1946 1948 1951 1953 1957. 1962. 1966 1968 1971 1972 1975 1977 1980 1982 1984 1988 1989 1992 1993 1998 1999 2002 2003 2007 2009 2011 2014 2016 2019 2021 2023 2026 2029 2032 2034 2037 2038 2041 2043 2046 2048 2050 2052 2055 2058 2061 2063 2064 2068 2070 2072 2074 2077 2079 2082 2084 2087 2089 2091 2094 2097 2099 2101 2103 2106 2109 2110 2112 2115 2118 2121 2123 2126 2127 2130 2133 2136. 2139 2142 2145. 2149 2151 2154 2155 2158 2162 2163 2165 2168 2172. 2176 2177 2181 2182 2185 2186 2190 2191 2195 2197 2199 2201 2204 2207 2209 2210 2214 2216 2218 2221 2223 2225 2227 2231 2234 2236 2239 2241 2243 2245 2248 2250 2252 2254 2257 2261. 2263 2267 2270 2271 2273 2276 2279 2280 2284 2286 2287 2289 2292 2295 2296 2298 2302 2305 23
> 06 2309 2311 2314 2316 2319 2322 2323 2325 2328 2332. 2334 2337 2341 2342 2344 2347 2350 2351 2354 2357 2359 2360 2364 2367 2369. 2373 2376 2378 2379 2383 2385 2387 2389 2392 2395 2396 2399 2403 2404 2405 2408 2412 2414 2416 2418 2421 2423 2425 2429 2430 2432 2434 2438 2440 2441 2444 2448 2449 2450 2454 2457 2458 2461 2465 2466 2467 2471 2474 2476. 2481 2483 2485. 2490 2492 2494 2496 2500 2501 2503 2506 2510. 2512 2516 2519 2520 2523 2525 2528 2529 2532 2536 2537 2538 2541 2545 2546 2547 2551 2554 2556 2557 2562 2563 2565 2569 2572 2574 2575 2579 2581 2583 2586 2589 2591 2592 2595 2599 2600 2601 2604 2608 2609 2611 2613 2617 2619 2620 2623 2627 2628 2631 2634 2636 2638 2640 2644 2645 2647 2649 2653 2655 2657 2659 2663 2664 2667 2670 2672 2674 2677 2680 2682 2684 2687 2690 2691 2694 2696 2699 2701 2703 2706 2708 2710 2712 2716 2718 2721 2722 2726 2727 2730 2733 2735 2737 2739 2742 2744 2746 2748 2752 2753 2757 2759 2762 2763 2766 2769 2771 2772 2775 2778 2780 2784. 2787 2789 2793 2795 2798. 2802 2805 2807 280
> 9 2811 2814 2816 2820 2822 2823 2825 2829 2831 2834. 2838 2840 2843 2845 2847 2850 2852 2856 2858 2860 2861 2865 2867 2870. 2874 2876 2879 2881 2883 2886 2888 2892 2894 2897. 2901 2903 2906 2908 2910 2913 2915 2917 2919 2923 2924 2926 2930 2932 2934 2937 2940 2941 2944 2946 2949 2950 2953 2955 2959 2960 2963 2966 2968 2970 2972 2975 2977 2979 2981 2984 2986 2988 2991 2993 2996 2999 3002 3004 3005 SUCCESS

--
Jan Kara <jack@suse.cz>
SUSE Labs, CR
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Re: [printk A-A deadlock] possible reason: unannotated irqs-on [ In reply to ]
On Mon, Mar 04, 2013 at 10:14:58AM +0100, Jan Kara wrote:
> On Mon 04-03-13 13:42:54, Wu Fengguang wrote:
> > Greetings,
> >
> > I got the below oops and the first bad commit is
> Thanks for report! BTW, I didn't see any oops in the log, just complaints
> from lockdep about a bug in irq handling (which seems to be just a problem
> with lockdep turning on-off in vprintk_emit() which I broke).

You are welcome! And sorry for the misword..

Thanks,
Fengguang
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