Messages in this thread | | | Date | Mon, 5 Mar 2007 13:21:05 +0100 | From | "Michal Piotrowski" <> | Subject | Re: 2.6.21-rc2-git3 soft lockup detected on CPU#0 (crash dump kernel) |
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On 05/03/07, Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote: > On 05/03/07, Ingo Molnar <mingo@elte.hu> wrote: > > > > * Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote: > > > > > >also below is a softlockup-debug patch that might be useful, which adds > > > >a tick/tock output so it spams the console once per second but can show > > > >the dynamics of lockups (and other delays). > > > > > > I have applied this patch > > > http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/2.6.21-rc2-git3-kdump/log3.txt > > > > thanks. It seems that the 'BUG: soft lockup detected' message does not > > occur in this log though - and that there are bootup messages between > > the two sysrq outputs: > > > > [ 221.101833] skge eth1: disabling interface > > [ 228.740911] audit(1173094442.943:11): user pid=3245 uid=0 > > auid=4294967295 subj=system_u:system_r:hwclock_t:s0 msg='changing system > > time: exe="/sbin/hwclock" > > (hostname=?, addr=?, terminal=console res=success)' > > [ 233.148571] md: md1 in immediate safe mode > > > > plus there's trouble with irq 10: > > > > [ 132.013194] irq 10: nobody cared (try booting with the "irqpoll" option) > > [ 132.072771] Disabling IRQ #10 > > > > that prompted you to enable irqpoll, right? > > No. irqpoll is added by /etc/init.d/kdump script (FC6). > > > So am i right that without > > irqpoll there's no lockup? > > I will check this.
I can confirm that without irqpoll everything works fine. http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/2.6.21-rc2-git3-kdump/log4.txt
irqpoll is recommended as a command line option in Documentation/kdump/kdump.txt
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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