Re: v3.0: Weird kernel log message when resuming avout NMI received

Francis Moreau
2011-08-15T08:37:28Z

Hello Peter,

Sorry for the loooonnng delay but summer rest :)

On Mon, Aug 1, 2011 at 1:05 PM, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> On Sun, 2011-07-31 at 19:32 +0400, Cyrill Gorcunov wrote:
>
>> > >> I'm seeing those kernel message when resuming:
>> > >>
>> > >> [  524.973283] Uhhuh. NMI received for unknown reason 3d on CPU 0.
>> > >> [  524.973288] Do you have a strange power saving mode enabled?
>> > >> [  524.973289] Dazed and confused, but trying to continue
>> > >>
>> > >> I don't know if it's important or not because the system seems to work
>> > >> after but maybe it worths to report
>
> So I guess the problem is the NMI watchdog and suspend stuff not
> shutting things down properly..
>
> Argh, the PM notifier muck runs before the hotplug notifiers and it
> doesn't avoid hotplug races on its own.. what crap.
>
> something like the below perhaps, compile tested only.. does it work?

Thanks for the fix, I'm going to give it a test and report in 2 days.

--
Francis