lkml.org 
[lkml]   [2013]   [Oct]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [BUG 3.12.rc4] Oops: unable to handle kernel paging request during shutdown
On Tue, Oct 15, 2013 at 12:31:34AM +0200, Knut Petersen wrote:
> On 14.10.2013 23:51, Frederic Weisbecker wrote:
> >Also knut, do you have a serial line?
> Yes, if really necesarry .... I´d prefer network

Hmm, you can try but it might not be working correcty after the fault.

>
> >
> >If so may be looking at the timer events may help. Could you try to enable the following
> >timer events?
> >
> > echo 1 > /sys/kernel/debug/tracing/events/timer/timer_cancel
> > echo 1 > /sys/kernel/debug/tracing/events/timer/timer_expire_entry
> > echo 1 > /sys/kernel/debug/tracing/events/timer/timer_expire_exit
> > echo 1 > /sys/kernel/debug/tracing/events/timer/timer_init
> > echo 1 > /sys/kernel/debug/tracing/events/timer/timer_start
> >
> >And also enable ftrace_dump_on_oops:
> >
> > sysctl kernel.ftrace_dump_on_oops=1
> I assume you forgot .../enable several times ?!

Oops, sorry yep.

>
> echo 1 > /sys/kernel/debug/tracing/events/timer/timer_cancel/enable
> echo 1 > /sys/kernel/debug/tracing/events/timer/timer_expire_entry/enable
> echo 1 > /sys/kernel/debug/tracing/events/timer/timer_expire_exit/enable
> echo 1 > /sys/kernel/debug/tracing/events/timer/timer_init/enable
> echo 1 > /sys/kernel/debug/tracing/events/timer/timer_start/enable
> sysctl kernel.ftrace_dump_on_oops=1
>
> I added that to /etc/init.d/boot.local

Thanks! Now lets cross the fingers :)

>
>
> >
> >We may have some interesting clues about who manipulated the timer list last before
> >the oops happened.
> >
> >Thanks!
> >
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2013-10-15 01:01    [W:0.099 / U:13.004 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site