Mailing List Archive

Michael Cook <michael@waxrat.com> writes:

> I recently moved my pvr-150 from one computer to another, and after
> having done that I found that mythtv would fail recording
> occasionally, about once a day or so I would have to reboot. The
> error messages that appeared in /var/log were like this:
>
> ivtv0: All encoder MPG stream buffers are full. Dropping data.
> ivtv0: Cause: the application is not reading fast enough.
>
> and
>
> MPEGRec(/dev/video0) Error: select timeout - ivtv driver has stopped responding
>
> After googling those error messages for a while, it occurred to me
> to try moving my pvr-150 card from one pci slot to another. After I
> did that, the failures seem to have stopped (after four days, no
> failures).
>
> Is this information interesting?
>
> Here's the change in the dmesg output from before the failures until
> after the slot change.

Here's a little more information.

$ dmesg | g -i ivtv
[ 11.127102] ivtv: Start initialization, version 1.4.0
[ 11.127366] ivtv0: Initializing card #0
[ 11.127371] ivtv0: Autodetected Hauppauge card (cx23416 based)
[ 11.129274] ivtv 0000:01:08.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 11.182851] ivtv0: Autodetected Hauppauge WinTV PVR-150
[ 11.182854] ivtv0: Reopen i2c bus for IR-blaster support
[ 11.455020] cx25840 0-0044: cx25843-24 found @ 0x88 (ivtv i2c driver #0)
[ 11.467124] tuner 0-0061: chip found @ 0xc2 (ivtv i2c driver #0)
[ 11.467228] wm8775 0-001b: chip found @ 0x36 (ivtv i2c driver #0)
[ 11.729897] ivtv0: Registered device video0 for encoder MPG (4096 kB)
[ 11.729968] ivtv0: Registered device video32 for encoder YUV (2048 kB)
[ 11.730035] ivtv0: Registered device vbi0 for encoder VBI (1024 kB)
[ 11.730106] ivtv0: Registered device video24 for encoder PCM (320 kB)
[ 11.730110] ivtv0: Initialized card #0: Hauppauge WinTV PVR-150
[ 11.730170] ivtv: End initialization
[ 38.032018] ivtv 0000:01:08.0: firmware: requesting v4l-cx2341x-enc.fw
[ 38.111418] ivtv0: Loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
[ 38.308138] ivtv0: Encoder revision: 0x02060039

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On Wed, 2009-07-15 at 19:23 -0400, Michael Cook wrote:
> I recently moved my pvr-150 from one computer to another, and after
> having done that I found that mythtv would fail recording
> occasionally, about once a day or so I would have to reboot. The
> error messages that appeared in /var/log were like this:
>
> ivtv0: All encoder MPG stream buffers are full. Dropping data.
> ivtv0: Cause: the application is not reading fast enough.
>
> and
>
> MPEGRec(/dev/video0) Error: select timeout - ivtv driver has stopped responding
>
> After googling those error messages for a while, it occurred to me
> to try moving my pvr-150 card from one pci slot to another. After I
> did that, the failures seem to have stopped (after four days, no
> failures).
>
> Is this information interesting?

Sort of. It would be more interesting with the output of

$ cat /proc/interrupts
$ /sbin/lspci -vvv

So we can see what other Linux driver may be affecting the ivtv driver's
interrupt service.

Regards,
Andy


> Here's the change in the dmesg output from before the failures until
> after the slot change.
>
> --- dmesg.0 2009-07-13 10:49:02.832870506 -0400
> +++ dmesg 2009-07-13 10:49:02.836869525 -0400
> @@ -118,7 +118,7 @@
> Initializing CPU#0
> PID hash table entries: 4096 (order: 12, 16384 bytes)
> TSC: PIT calibration matches PMTIMER. 1 loops
> -Detected 2399.565 MHz processor.
> +Detected 2399.556 MHz processor.
> Console: colour VGA+ 80x25
> console [tty0] enabled
> Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
> @@ -137,7 +137,7 @@
> .text : 0xc0100000 - 0xc0503b9f (4110 kB)
> Checking if this processor honours the WP bit even in supervisor mode...Ok.
> SLUB: Genslabs=12, HWalign=128, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
> -Calibrating delay loop (skipped), value calculated using timer frequency.. 4799.13 BogoMIPS (lpj=9598260)
> +Calibrating delay loop (skipped), value calculated using timer frequency.. 4799.11 BogoMIPS (lpj=9598224)
> Security Framework initialized
> SELinux: Disabled at boot.
> AppArmor: AppArmor initialized
> @@ -156,11 +156,11 @@
> ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
> CPU0: Intel(R) Pentium(R) 4 CPU 2.40GHz stepping 07
> Brought up 1 CPUs
> -Total of 1 processors activated (4799.13 BogoMIPS).
> +Total of 1 processors activated (4799.11 BogoMIPS).
> CPU0 attaching NULL sched-domain.
> net_namespace: 776 bytes
> Booting paravirtualized kernel on bare hardware
> -Time: 13:41:43 Date: 07/12/09
> +Time: 18:38:07 Date: 07/12/09
> regulator: core version 0.5
> NET: Registered protocol family 16
> EISA bus registered
> @@ -201,7 +201,7 @@
> pci 0000:00:1f.5: reg 1c 32bit mmio: [0xffa00000-0xffa000ff]
> pci 0000:00:1f.5: PME# supported from D0 D3hot D3cold
> pci 0000:00:1f.5: PME# disabled
> -pci 0000:01:07.0: reg 10 32bit mmio: [0xf8000000-0xfbffffff]
> +pci 0000:01:08.0: reg 10 32bit mmio: [0xf8000000-0xfbffffff]
> pci 0000:01:0c.0: reg 10 32bit mmio: [0xff8e0000-0xff8fffff]
> pci 0000:01:0c.0: reg 18 io port: [0xecc0-0xecff]
> pci 0000:01:0c.0: PME# supported from D0 D3hot D3cold
> @@ -282,7 +282,7 @@
> Simple Boot Flag at 0x7a set to 0x1
> cpufreq: No nForce2 chipset.
> audit: initializing netlink socket (disabled)
> -type=2000 audit(1247406103.632:1): initialized
> +type=2000 audit(1247423887.632:1): initialized
> highmem bounce pool size: 64 pages
> HugeTLB registered 4 MB page size, pre-allocated 0 pages
> VFS: Disk quotas dquot_6.5.1
> @@ -410,8 +410,8 @@
> Bluetooth: RFCOMM ver 1.10
> Using IPI No-Shortcut mode
> registered taskstats version 1
> - Magic number: 1:418:685
> -rtc_cmos 00:05: setting system clock to 2009-07-12 13:41:45 UTC (1247406105)
> + Magic number: 1:398:645
> +rtc_cmos 00:05: setting system clock to 2009-07-12 18:38:09 UTC (1247423889)
> BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
> EDD information not available.
> Freeing unused kernel memory: 532k freed
> @@ -466,13 +466,13 @@
> iTCO_wdt: failed to reset NO_REBOOT flag, reboot disabled by hardware
> iTCO_wdt: No card detected
> input: PC Speaker as /devices/platform/pcspkr/input/input4
> -synaptics was reset on resume, see synaptics_resume_reset if you have trouble on resume
> Linux video capture interface: v2.00
> -dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
> -psmouse serio1: ID: 00 00 3c<6>ivtv: Start initialization, version 1.4.0
> +synaptics was reset on resume, see synaptics_resume_reset if you have trouble on resume
> +psmouse serio1: ID: 00 00 3c<6>dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
> +ivtv: Start initialization, version 1.4.0
> ivtv0: Initializing card #0
> ivtv0: Autodetected Hauppauge card (cx23416 based)
> -ivtv 0000:01:07.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> +ivtv 0000:01:08.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
> tveeprom 0-0050: Hauppauge model 26152, rev E5B2, serial# 10317012
> tveeprom 0-0050: tuner model is TCL M2523_5N_E (idx 112, type 50)
> tveeprom 0-0050: TV standards NTSC(M) (eeprom 0x08)
> @@ -492,11 +492,11 @@
> ivtv0: Registered device video24 for encoder PCM (320 kB)
> ivtv0: Initialized card #0: Hauppauge WinTV PVR-150
> ivtv: End initialization
> +ppdev: user-space parallel port driver
> +input: ImPS/2 Logitech Wheel Mouse as /devices/platform/i8042/serio1/input/input5
> Intel ICH 0000:00:1f.5: PCI INT B -> GSI 17 (level, low) -> IRQ 17
> Intel ICH 0000:00:1f.5: setting latency timer to 64
> -input: ImPS/2 Logitech Wheel Mouse as /devices/platform/i8042/serio1/input/input5
> -ppdev: user-space parallel port driver
> -intel8x0_measure_ac97_clock: measured 54894 usecs
> +intel8x0_measure_ac97_clock: measured 54847 usecs
> intel8x0: clocking to 48000
> lp0: using parport0 (interrupt-driven).
> Adding 497972k swap on /dev/sda5. Priority:-1 extents:1 across:497972k
> @@ -507,22 +507,22 @@
> Ending clean XFS mount for filesystem: sda6
> XFS mounting filesystem sdb1
> Ending clean XFS mount for filesystem: sdb1
> -type=1505 audit(1247406122.092:2): operation="profile_load" name="/sbin/dhclient-script" name2="default" pid=1945
> -type=1505 audit(1247406122.092:3): operation="profile_load" name="/sbin/dhclient3" name2="default" pid=1945
> -type=1505 audit(1247406122.092:4): operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" name2="default" pid=1945
> -type=1505 audit(1247406122.092:5): operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" name2="default" pid=1945
> -type=1505 audit(1247406122.484:6): operation="profile_load" name="/usr/lib/cups/backend/cups-pdf" name2="default" pid=1950
> -type=1505 audit(1247406122.500:7): operation="profile_load" name="/usr/sbin/cupsd" name2="default" pid=1950
> -type=1505 audit(1247406122.608:8): operation="profile_load" name="/usr/sbin/dhcpd3" name2="default" pid=1954
> -type=1505 audit(1247406122.720:9): operation="profile_load" name="/usr/sbin/mysqld" name2="default" pid=1958
> -type=1505 audit(1247406122.816:10): operation="profile_load" name="/usr/sbin/mysqld-akonadi" name2="default" pid=1962
> -type=1505 audit(1247406122.908:11): operation="profile_load" name="/usr/sbin/tcpdump" name2="default" pid=1966
> +type=1505 audit(1247423906.388:2): operation="profile_load" name="/sbin/dhclient-script" name2="default" pid=1944
> +type=1505 audit(1247423906.388:3): operation="profile_load" name="/sbin/dhclient3" name2="default" pid=1944
> +type=1505 audit(1247423906.388:4): operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" name2="default" pid=1944
> +type=1505 audit(1247423906.388:5): operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" name2="default" pid=1944
> +type=1505 audit(1247423906.792:6): operation="profile_load" name="/usr/lib/cups/backend/cups-pdf" name2="default" pid=1949
> +type=1505 audit(1247423906.792:7): operation="profile_load" name="/usr/sbin/cupsd" name2="default" pid=1949
> +type=1505 audit(1247423906.912:8): operation="profile_load" name="/usr/sbin/dhcpd3" name2="default" pid=1953
> +type=1505 audit(1247423907.016:9): operation="profile_load" name="/usr/sbin/mysqld" name2="default" pid=1957
> +type=1505 audit(1247423907.112:10): operation="profile_load" name="/usr/sbin/mysqld-akonadi" name2="default" pid=1961
> +type=1505 audit(1247423907.212:11): operation="profile_load" name="/usr/sbin/tcpdump" name2="default" pid=1965
> RPC: Registered udp transport module.
> RPC: Registered tcp transport module.
> Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
> NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
> NFSD: starting 90-second grace period
> -ivtv 0000:01:07.0: firmware: requesting v4l-cx2341x-enc.fw
> +ivtv 0000:01:08.0: firmware: requesting v4l-cx2341x-enc.fw
> ivtv0: Loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
> ivtv0: Encoder revision: 0x02060039
> cx25840 0-0044: firmware: requesting v4l-cx25840.fw
>
> _______________________________________________
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> ivtv-users@ivtvdriver.org
> http://ivtvdriver.org/mailman/listinfo/ivtv-users
>


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Andy Walls <awalls@radix.net> writes:

> On Wed, 2009-07-15 at 19:23 -0400, Michael Cook wrote:
>> I recently moved my pvr-150 from one computer to another, and after
>> having done that I found that mythtv would fail recording
>> occasionally, about once a day or so I would have to reboot. The
>> error messages that appeared in /var/log were like this:
>>
>> ivtv0: All encoder MPG stream buffers are full. Dropping data.
>> ivtv0: Cause: the application is not reading fast enough.
>>
>> and
>>
>> MPEGRec(/dev/video0) Error: select timeout - ivtv driver has stopped responding
>>
>> After googling those error messages for a while, it occurred to me
>> to try moving my pvr-150 card from one pci slot to another. After I
>> did that, the failures seem to have stopped (after four days, no
>> failures).
>>
>> Is this information interesting?
>
> Sort of. It would be more interesting with the output of
>
> $ cat /proc/interrupts
> $ /sbin/lspci -vvv
>
> So we can see what other Linux driver may be affecting the ivtv driver's
> interrupt service.

$ cat /proc/interrupts
CPU0
0: 178 IO-APIC-edge timer
1: 71 IO-APIC-edge i8042
4: 38492 IO-APIC-edge serial
6: 5 IO-APIC-edge floppy
7: 0 IO-APIC-edge parport0
8: 0 IO-APIC-edge rtc0
9: 0 IO-APIC-fasteoi acpi
12: 150 IO-APIC-edge i8042
14: 1047210 IO-APIC-edge ata_piix
15: 1924421 IO-APIC-edge ata_piix
16: 4 IO-APIC-fasteoi uhci_hcd:usb2
17: 10205890 IO-APIC-fasteoi ivtv0, Intel 82801DB-ICH4
18: 5673605 IO-APIC-fasteoi uhci_hcd:usb4, eth0
19: 0 IO-APIC-fasteoi uhci_hcd:usb3
23: 21274273 IO-APIC-fasteoi ehci_hcd:usb1
NMI: 0 Non-maskable interrupts
LOC: 50668949 Local timer interrupts
RES: 0 Rescheduling interrupts
CAL: 0 Function call interrupts
TLB: 0 TLB shootdowns
SPU: 0 Spurious interrupts
ERR: 0
MIS: 0
$ /sbin/lspci -vvv
bash: /sbin/lspci: No such file or directory
$ type -all lspci
lspci is /usr/bin/lspci
lspci is /usr/X11R6/bin/lspci
$ lspci -vvv
00:00.0 Host bridge: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM Controller/Host-Hub Interface (rev 01)
Subsystem: Dell Device 0126
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M]
Capabilities: <access denied>
Kernel driver in use: agpgart-intel
Kernel modules: intel-agp

00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 01)
Subsystem: Dell Device 0126
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at e8000000 (32-bit, prefetchable) [size=128M]
Region 1: Memory at ff680000 (32-bit, non-prefetchable) [size=512K]
Capabilities: <access denied>
Kernel modules: intelfb

00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01)
Subsystem: Dell Device 0126
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 4: I/O ports at ff80 [size=32]
Kernel driver in use: uhci_hcd

00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01)
Subsystem: Dell Device 0126
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 19
Region 4: I/O ports at ff60 [size=32]
Kernel driver in use: uhci_hcd

00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01)
Subsystem: Dell Device 0126
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 18
Region 4: I/O ports at ff40 [size=32]
Kernel driver in use: uhci_hcd

00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 01) (prog-if 20)
Subsystem: Dell Device 0126
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin D routed to IRQ 23
Region 0: Memory at ffa00800 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd

00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 81)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR+ INTx-
Latency: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: ff800000-ff9fffff
Prefetchable memory behind bridge: f8000000-fbffffff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Kernel modules: shpchp

00:1f.0 ISA bridge: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge (rev 01)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Kernel modules: iTCO_wdt, intel-rng

00:1f.1 IDE interface: Intel Corporation 82801DB (ICH4) IDE Controller (rev 01) (prog-if 8a [Master SecP PriP])
Subsystem: Dell Device 0126
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 18
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4 [size=1]
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374 [size=1]
Region 4: I/O ports at ffa0 [size=16]
Region 5: Memory at 40000000 (32-bit, non-prefetchable) [size=1K]
Kernel driver in use: ata_piix

00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 01)
Subsystem: Dell Device 0126
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin B routed to IRQ 11
Region 4: I/O ports at dc80 [size=32]
Kernel modules: i2c-i801

00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01)
Subsystem: Dell Device 0126
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 17
Region 0: I/O ports at d800 [size=256]
Region 1: I/O ports at dc40 [size=64]
Region 2: Memory at ffa00400 (32-bit, non-prefetchable) [size=512]
Region 3: Memory at ffa00000 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: Intel ICH
Kernel modules: snd-intel8x0

01:08.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
Subsystem: Hauppauge computer works Inc. Device 8003
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (32000ns min, 2000ns max), Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 17
Region 0: Memory at f8000000 (32-bit, prefetchable) [size=64M]
Capabilities: <access denied>
Kernel driver in use: ivtv
Kernel modules: ivtv

01:0c.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02)
Subsystem: Dell Device 002e
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (63750ns min), Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at ff8e0000 (32-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at ecc0 [size=64]
Capabilities: <access denied>
Kernel driver in use: e1000
Kernel modules: e1000

$

Michael

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On Wed, 2009-07-15 at 20:16 -0400, Michael Cook wrote:
> Andy Walls <awalls@radix.net> writes:
>
> > On Wed, 2009-07-15 at 19:23 -0400, Michael Cook wrote:
> >> I recently moved my pvr-150 from one computer to another, and after
> >> having done that I found that mythtv would fail recording
> >> occasionally, about once a day or so I would have to reboot. The
> >> error messages that appeared in /var/log were like this:
> >>
> >> ivtv0: All encoder MPG stream buffers are full. Dropping data.
> >> ivtv0: Cause: the application is not reading fast enough.
> >>
> >> and
> >>
> >> MPEGRec(/dev/video0) Error: select timeout - ivtv driver has stopped responding
> >>
> >> After googling those error messages for a while, it occurred to me
> >> to try moving my pvr-150 card from one pci slot to another. After I
> >> did that, the failures seem to have stopped (after four days, no
> >> failures).
> >>
> >> Is this information interesting?
> >
> > Sort of. It would be more interesting with the output of
> >
> > $ cat /proc/interrupts
> > $ /sbin/lspci -vvv
> >
> > So we can see what other Linux driver may be affecting the ivtv driver's
> > interrupt service.
>
> $ cat /proc/interrupts
> CPU0
> 0: 178 IO-APIC-edge timer
> 1: 71 IO-APIC-edge i8042
> 4: 38492 IO-APIC-edge serial
> 6: 5 IO-APIC-edge floppy
> 7: 0 IO-APIC-edge parport0
> 8: 0 IO-APIC-edge rtc0
> 9: 0 IO-APIC-fasteoi acpi
> 12: 150 IO-APIC-edge i8042
> 14: 1047210 IO-APIC-edge ata_piix
> 15: 1924421 IO-APIC-edge ata_piix

> 16: 4 IO-APIC-fasteoi uhci_hcd:usb2
> 17: 10205890 IO-APIC-fasteoi ivtv0, Intel 82801DB-ICH4

Hmmm. It's working better now that it's sharing an interrupt with the
Sound/Audio controller which is handled by the ALSA snd-intel8x0 driver.

Before it was hanging when sharing an interrupt with a USB controller
hub (usb2) handled by the uhci_hcd driver. I guess there might be a
problem/bug in the uhci_hcd driver's interrupt service routine or with
the USB device that was connected to that hub or with the USB driver
that handled that device.


> 18: 5673605 IO-APIC-fasteoi uhci_hcd:usb4, eth0
> 19: 0 IO-APIC-fasteoi uhci_hcd:usb3
> 23: 21274273 IO-APIC-fasteoi ehci_hcd:usb1

USB hub 1 looks kind of busy.

Well, anyway, since *perhaps* there may be a problem with servicing
interrupts in the uhci_hcd driver, it looks like sharing an IRQ with a
device handled by an ALSA driver is probably optimal for you. The ALSA
drivers are going to have well written interrupt service routines in
general.


Regards,
Andy

> NMI: 0 Non-maskable interrupts
> LOC: 50668949 Local timer interrupts
> RES: 0 Rescheduling interrupts
> CAL: 0 Function call interrupts
> TLB: 0 TLB shootdowns
> SPU: 0 Spurious interrupts
> ERR: 0
> MIS: 0
> $ /sbin/lspci -vvv
> bash: /sbin/lspci: No such file or directory
> $ type -all lspci
> lspci is /usr/bin/lspci
> lspci is /usr/X11R6/bin/lspci
> $ lspci -vvv
> 00:00.0 Host bridge: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM Controller/Host-Hub Interface (rev 01)
> Subsystem: Dell Device 0126
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
> Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
> Latency: 0
> Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M]
> Capabilities: <access denied>
> Kernel driver in use: agpgart-intel
> Kernel modules: intel-agp
>
> 00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 01)
> Subsystem: Dell Device 0126
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0
> Interrupt: pin A routed to IRQ 16
> Region 0: Memory at e8000000 (32-bit, prefetchable) [size=128M]
> Region 1: Memory at ff680000 (32-bit, non-prefetchable) [size=512K]
> Capabilities: <access denied>
> Kernel modules: intelfb
>
> 00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01)
> Subsystem: Dell Device 0126
> Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0
> Interrupt: pin A routed to IRQ 16
> Region 4: I/O ports at ff80 [size=32]
> Kernel driver in use: uhci_hcd
>
> 00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01)
> Subsystem: Dell Device 0126
> Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0
> Interrupt: pin B routed to IRQ 19
> Region 4: I/O ports at ff60 [size=32]
> Kernel driver in use: uhci_hcd
>
> 00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01)
> Subsystem: Dell Device 0126
> Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0
> Interrupt: pin C routed to IRQ 18
> Region 4: I/O ports at ff40 [size=32]
> Kernel driver in use: uhci_hcd
>
> 00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 01) (prog-if 20)
> Subsystem: Dell Device 0126
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
> Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0
> Interrupt: pin D routed to IRQ 23
> Region 0: Memory at ffa00800 (32-bit, non-prefetchable) [size=1K]
> Capabilities: <access denied>
> Kernel driver in use: ehci_hcd
>
> 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 81)
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR+ INTx-
> Latency: 0
> Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
> I/O behind bridge: 0000e000-0000efff
> Memory behind bridge: ff800000-ff9fffff
> Prefetchable memory behind bridge: f8000000-fbffffff
> Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- <SERR- <PERR-
> BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
> PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
> Kernel modules: shpchp
>
> 00:1f.0 ISA bridge: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge (rev 01)
> Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0
> Kernel modules: iTCO_wdt, intel-rng
>
> 00:1f.1 IDE interface: Intel Corporation 82801DB (ICH4) IDE Controller (rev 01) (prog-if 8a [Master SecP PriP])
> Subsystem: Dell Device 0126
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0
> Interrupt: pin A routed to IRQ 18
> Region 0: I/O ports at 01f0 [size=8]
> Region 1: I/O ports at 03f4 [size=1]
> Region 2: I/O ports at 0170 [size=8]
> Region 3: I/O ports at 0374 [size=1]
> Region 4: I/O ports at ffa0 [size=16]
> Region 5: Memory at 40000000 (32-bit, non-prefetchable) [size=1K]
> Kernel driver in use: ata_piix
>
> 00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 01)
> Subsystem: Dell Device 0126
> Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Interrupt: pin B routed to IRQ 11
> Region 4: I/O ports at dc80 [size=32]
> Kernel modules: i2c-i801
>
> 00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01)
> Subsystem: Dell Device 0126
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0
> Interrupt: pin B routed to IRQ 17
> Region 0: I/O ports at d800 [size=256]
> Region 1: I/O ports at dc40 [size=64]
> Region 2: Memory at ffa00400 (32-bit, non-prefetchable) [size=512]
> Region 3: Memory at ffa00000 (32-bit, non-prefetchable) [size=256]
> Capabilities: <access denied>
> Kernel driver in use: Intel ICH
> Kernel modules: snd-intel8x0
>
> 01:08.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
> Subsystem: Hauppauge computer works Inc. Device 8003
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 64 (32000ns min, 2000ns max), Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 17
> Region 0: Memory at f8000000 (32-bit, prefetchable) [size=64M]
> Capabilities: <access denied>
> Kernel driver in use: ivtv
> Kernel modules: ivtv
>
> 01:0c.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02)
> Subsystem: Dell Device 002e
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
> Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 64 (63750ns min), Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 18
> Region 0: Memory at ff8e0000 (32-bit, non-prefetchable) [size=128K]
> Region 2: I/O ports at ecc0 [size=64]
> Capabilities: <access denied>
> Kernel driver in use: e1000
> Kernel modules: e1000
>
> $
>
> Michael
>
> _______________________________________________
> ivtv-users mailing list
> ivtv-users@ivtvdriver.org
> http://ivtvdriver.org/mailman/listinfo/ivtv-users
>


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