Messages in this thread | | | Date | Fri, 6 Apr 2007 17:27:11 +0200 | From | "Michal Piotrowski" <> | Subject | Re: [patch] hrtimers debug patch |
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Hi all,
On 26/03/07, Ingo Molnar <mingo@elte.hu> wrote: > > * Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote: > > > Stardust is down, console log and config attached. > > thanks! I have stared at hrtimer.c a few more hours and the good news is > that i found a narrow SMP race. The bad news is that i dont think it > could explain your bug symptoms: the worst-case effect of the race > should be an incorrect timeout on the current CPU - not a KTIME_MAX > thing like your logs show. > > But maybe i didnt think through the effects of the bug well enough, and > your box has a HT CPU, with HT CPUs being pretty good at triggering > narrow SMP races - so maybe we are lucky? Fix attached below. Patch is > build and boot-tested. >
I didn't see this weird hang for 12 days. I think that this patch solves this issue.
Huge thans!
Regards, Michal
-- Michal K. K. Piotrowski LTG - Linux Testers Group (PL) (http://www.stardust.webpages.pl/ltg/) LTG - Linux Testers Group (EN) (http://www.stardust.webpages.pl/linux_testers_group_en/) - 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/
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