On Mon, Sep 10, 2012 at 10:06:33AM -0700, John Stultz wrote:
> On 09/09/2012 12:59 AM, Fengguang Wu wrote:
> >Hi John,
> >
> >The below lockup warning pops up very occasionally in kvm guest
> >kernels and it's bisected down to
> >
> > commit 2a8c0883c3cfffcc148ea606e2a4e7453cd75e73
> > Author: John Stultz <john.stu...@linaro.org>
> > Date: Fri Jul 13 01:21:56 2012 -0400
> >
> > time: Move xtime_nsec adjustment underflow handling
> > timekeeping_adjust
> >
> >[ 8.340327] Freeing unused kernel memory: 460k freed
> >[ 1107.515496] [sched_delayed] sched: RT throttling activated
> >[ 1107.516439] BUG: soft lockup - CPU#1 stuck for 1024s! [swapper/1:0]
>
>
> Thanks so much for sending this. One detail I'm curious about is
> that these kernels from the Bug messages seem to be v3.6-rc1 or
> earlier.
>
> Ingo had a fix 1d17d17484d40f2d5b35c79518597a2b25296996 ("time: Fix
> adjustment cleanup bug in timekeeping_adjust") that landed in
> 3.6-rc2
>
> Has this issue actually been seen on a 3.6-rc2+ kernel?
Nope. I tested -rc5 for 10000+ boots and it's obviously free from the bug.
Sorry for the noise!
Thanks,
Fengguang
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
