On 07/10/2013 05:54 AM, Peter Zijlstra wrote:
On Tue, Jul 09, 2013 at 06:35:27PM -0400, Sasha Levin wrote:
While going through the NMI dump, I noticed that it's very incomplete, and full of:
[ 2536.500130] INFO: NMI handler (arch_trigger_all_cpu_backtrace_handler)
took too long to run: 697182.008 msecs
Now I would actually expect arch_trigger_all_cpu_backtrace_handler() to
issue this warning, that said, ~700 seconds is a bit long, I'm fairly
sure it didn't actually take that long, you'd have noticed your vm being
'away' for 10+ minutes I'd think, no?
There's something entirely fishy with that stuff, let me to stare at it.
Yeah, it didn't actually hang that long - that number is bogus.
Thanks,
Sasha
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