Mailing List Archive

I had some oops related to hardened using 4.1.3-hardened-r1, but those are
gone after the advent of 4.1.3-hardened-r3 and so on.
https://bugs.gentoo.org/show_bug.cgi?id=556262

I see two similar bug reports, I suppose:
https://bugs.gentoo.org/show_bug.cgi?id=558280
is a duplicate... Am I right?

I've been seeing intel-iommu.c glitches during early boot without any
symptoms apart from the kernel log messages for some time now. It was
introduced many kernel versions before and I cannot really get closer to
it, since it is a really early log message.
It is possibly related to this bug with the exception that my systems
works just fine:
https://bugs.gentoo.org/show_bug.cgi?id=558138

------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at drivers/iommu/intel-iommu.c:3214
intel_unmap+0x146/0x200()
Driver unmaps unmatched page at PFN 0
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.1.5-hardened-r1 #1
Hardware name: System manufacturer System Product Name/Z8P(N)E-D12(X),
BIOS 1302 06/25/2012
0000000000000000 fafc4ab8f91ddaac ffffffff9819efbf 0000000000000000
ffffffff9819efbf ffffffff91e59d45 ffff880237c03d80 ffffffff910a9757
ffffffff9819efbf 0000000000000c8e ffffffff981de5b0 ffff8802361fcf68
Call Trace:
<IRQ> [<ffffffff91e59d45>] ? dump_stack+0x40/0x56
[<ffffffff910a9757>] ? warn_slowpath_common+0x77/0xb0
[<ffffffff910a97fc>] ? warn_slowpath_fmt+0x6c/0x90
[<ffffffff916a7716>] ? intel_unmap+0x146/0x200
[<ffffffff9177a45e>] ? twa_interrupt+0x48e/0x780
[<ffffffff910f9c63>] ? handle_irq_event_percpu+0x73/0x120
[<ffffffff910f9d40>] ? handle_irq_event+0x30/0x50
[<ffffffff910fce58>] ? handle_fasteoi_irq+0x88/0x180
[<ffffffff91005385>] ? handle_irq+0x85/0x160
[<ffffffff910ce014>] ? atomic_notifier_call_chain+0x24/0x30
[<ffffffff91004c01>] ? do_IRQ+0x41/0xf0
[<ffffffff91e65c57>] ? common_interrupt+0x97/0x97
<EOI> [<ffffffff919d82c7>] ? cpuidle_enter_state+0xb7/0x160
[<ffffffff910eebfb>] ? cpu_startup_entry+0x27b/0x300
[<ffffffff9cc1507a>] ? start_kernel+0x4a9/0x4ca
[<ffffffff9cc14120>] ? early_idt_handler_array+0x120/0x120
[<ffffffff9cc145f7>] ? x86_64_start_kernel+0x10b/0x12f
---[ end trace a7906508600bc5fc ]---

Any ideas?

Bye: Dw.
--
dr Tóth Attila, Radiológus, 06-20-825-8057
Attila Toth MD, Radiologist, +36-20-825-8057

2015.Augusztus 20.(Cs) 16:56 időpontban Alex Efros ezt írta:
> Hi!
>
> Subj happens on my 2 servers with different hardware, but both servers are
> 32-bit. So, be careful when upgrading to 4.1.4-hardened on 32-bit systems.
>
> https://bugs.gentoo.org/show_bug.cgi?id=558282
>
> --
> WBR, Alex.
>

Hi!

On Thu, Aug 20, 2015 at 05:21:23PM +0200, "Tóth Attila" wrote:
> I see two similar bug reports, I suppose:
> https://bugs.gentoo.org/show_bug.cgi?id=558280
> is a duplicate... Am I right?

Yep. On form submit I've got mysql connection error from bugzilla and
reload page with re-sending POST.

--
WBR, Alex.

On 8/20/15 11:24 AM, Alex Efros wrote:
> Hi!
>
> On Thu, Aug 20, 2015 at 05:21:23PM +0200, "Tóth Attila" wrote:
>> I see two similar bug reports, I suppose:
>> https://bugs.gentoo.org/show_bug.cgi?id=558280
>> is a duplicate... Am I right?
>
> Yep. On form submit I've got mysql connection error from bugzilla and
> reload page with re-sending POST.
>


It happens.

Anyhow, can people please test 4.1.6. I'll rapid stabilize it but I
don't want to trade one issue for another.

--
Anthony G. Basile, Ph. D.
Chair of Information Technology
D'Youville College
Buffalo, NY 14201
(716) 829-8197

On 08/21/2015 09:14 PM, Anthony G. Basile wrote:
>
> It happens.
>
> Anyhow, can people please test 4.1.6. I'll rapid stabilize it but I
> don't want to trade one issue for another.
>

If you want to play it safe, you can only rapid stable it on x86 where
the alternative is worse. I've upgraded a bunch of amd64 machines to
4.1.4 without issue.

On 21 Aug 2015 at 21:14, Anthony G. Basile wrote:

> Anyhow, can people please test 4.1.6. I'll rapid stabilize it but I
> don't want to trade one issue for another.

is there some new issue on 4.1.6 that is not in 4.1.4 or is it just out
of caution?

On 8/22/15 4:31 AM, PaX Team wrote:
> On 21 Aug 2015 at 21:14, Anthony G. Basile wrote:
>
>> Anyhow, can people please test 4.1.6. I'll rapid stabilize it but I
>> don't want to trade one issue for another.
>
> is there some new issue on 4.1.6 that is not in 4.1.4 or is it just out
> of caution?
>

Bug 558138. The intel iommu stuff is still causing issues although
according to the reporter its better.

--
Anthony G. Basile, Ph. D.
Chair of Information Technology
D'Youville College
Buffalo, NY 14201
(716) 829-8197

On 23 Aug 2015 at 8:41, Anthony G. Basile wrote:

> On 8/22/15 4:31 AM, PaX Team wrote:
> > is there some new issue on 4.1.6 that is not in 4.1.4 or is it just out
> > of caution?
>
> Bug 558138. The intel iommu stuff is still causing issues although
> according to the reporter its better.

i read that one but it's not new to 4.1.6 apparently, so i think
the right call was indeed to skip 4.1.4 for good.