Re: [Bug 40422] New: 3.0: kernel panic - not syncing: fatal exception in interrupt

Re: [Bug 40422] New: 3.0: kernel panic - not syncing: fatal exception in interrupt

[Andrew Morton]

(switched to email.  Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Mon, 1 Aug 2011 20:51:43 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:

> https://bugzilla.kernel.org/show_bug.cgi?id=40422
> 
>            Summary: 3.0: kernel panic - not syncing: fatal exception in
>                     interrupt
>            Product: Memory Management
>            Version: 2.5
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: Other
>         AssignedTo: akpm@linux-foundation.org
>         ReportedBy: mihai.dontu@gmail.com
>         Regression: No
> 
> 
> Upon resuming from suspend to disk, I got a kernel panic like it can be seen in
> the attached picture. I'm using 3.0 for less than a week and this is the first
> time this happens (after several successful suspend+resume-s).
> 

--- Comment #1 from Mihai Don#u <mihai.dontu@gmail.com>  2011-08-01 20:55:23 ---
Created an attachment (id=67322)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=67322)
kernel panic camera shot

drat, the first part of that crash scrolled off the screen or wasn't in
the photo.  I don't suppose it's possible to get that information?

Still, the oops is in netfilter code - a bad pointer dereference under
devinet_ioctl->masq_device_event.

Re: [Bug 40422] New: 3.0: kernel panic - not syncing: fatal exception in interrupt

[Mihai Donțu]

On Mon, 1 Aug 2011 14:04:18 -0700 Andrew Morton wrote:
> (switched to email.  Please respond via emailed reply-to-all, not via
> the bugzilla web interface).
> 
> On Mon, 1 Aug 2011 20:51:43 GMT
> bugzilla-daemon@bugzilla.kernel.org wrote:
> 
> > https://bugzilla.kernel.org/show_bug.cgi?id=40422
> > 
> >            Summary: 3.0: kernel panic - not syncing: fatal
> > exception in interrupt
> >            Product: Memory Management
> >            Version: 2.5
> >           Platform: All
> >         OS/Version: Linux
> >               Tree: Mainline
> >             Status: NEW
> >           Severity: normal
> >           Priority: P1
> >          Component: Other
> >         AssignedTo: akpm@linux-foundation.org
> >         ReportedBy: mihai.dontu@gmail.com
> >         Regression: No
> > 
> > 
> > Upon resuming from suspend to disk, I got a kernel panic like it
> > can be seen in the attached picture. I'm using 3.0 for less than a
> > week and this is the first time this happens (after several
> > successful suspend+resume-s).
> > 
> 
> --- Comment #1 from Mihai Don#u <mihai.dontu@gmail.com>  2011-08-01
> 20:55:23 --- Created an attachment (id=67322)
>  --> (https://bugzilla.kernel.org/attachment.cgi?id=67322)
> kernel panic camera shot
> 
> drat, the first part of that crash scrolled off the screen or wasn't
> in the photo.  I don't suppose it's possible to get that information?

No, I'm afraid not. I'll disable the framebuffer decorations for the
future. Should get me 4 or 5 more lines of backtrace when the crash
reappears.

> Still, the oops is in netfilter code - a bad pointer dereference under
> devinet_ioctl->masq_device_event.

-- 
Mihai Donțu

Re: [Bug 40422] New: 3.0: kernel panic - not syncing: fatal exception in interrupt

[Mihai Donțu]

On Wed, 3 Aug 2011 04:59:16 +0300 Mihai Donțu wrote:
> On Tuesday 02 August 2011 00:45:58 Mihai Donțu wrote:
> > > drat, the first part of that crash scrolled off the screen or
> > > wasn't in the photo.  I don't suppose it's possible to get that
> > > information?
> > 
> > No, I'm afraid not. I'll disable the framebuffer decorations for the
> > future. Should get me 4 or 5 more lines of backtrace when the crash
> > reappears.
> > 
> > > Still, the oops is in netfilter code - a bad pointer dereference
> > > under devinet_ioctl->masq_device_event.
> 
> I got another kernel panic, but it's in a different place and I've
> somehow managed to take a crappy snapshot (missing some of the right
> side info). Anyway, at the rate these tend to happen, I'm likely to be
> able to submit a correct one pretty soon.
> 
> Is there any option you'll like me to turn on?
> 

This issue has not reproduced for me in quite some time, also I have
updated my hardware a month ago, so I'm likely unable to test any fixes
in this area.

The strange thing however is that for a while I suffered from a
"desynchronization" between "hard locked" and "soft locked" (as
displayed by rfkill) and I had to manually run rfkill to enable WiFi.
After that last kernel panic, things got back to normal. :-) But I
assume that was a hardware issue ...

You can probably close this bug.

Thanks,

-- 
Mihai Donțu
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