Messages in this thread | | | Date | Sun, 20 May 2007 12:18:00 +0200 | From | Heiko Carstens <> | Subject | Re: [BUG] local_softirq_pending storm |
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On Sat, May 19, 2007 at 09:11:08PM +0200, Thomas Gleixner wrote: > On Sat, 2007-05-19 at 15:25 +0530, Anant Nitya wrote: > > > No idea. I uploaded a debug patch against 2.6.22-rc1 to > > > > > > http://www.tglx.de/private/tglx/2.6.22-rc1-hrt-debug.patch > > > > > > Can you give it a try and report the output ? > > Hi > > Here it goes > > [ 159.646196] NOHZ softirq pending 22 on CPU 0 > > [ 159.646207] .... task state: 1 00000000 > > 1 == TASK_INTERRUPTIBLE, so we know that ksoftirqd was not woken up. At > least it is not a scheduler problem. > > I work out a more complex debug patch and pester you to test once I'm > done.
I've also tons of 'NOHZ: local_softirq_pending 08' that disappear with nohz=off. But I'm still running 2.6.21. Are there any patches that should fix this? Machine is a Lenovo T60p:
i686 Intel(R) Core(TM)2 CPU T7600 @ 2.33GHz GenuineIntel GNU/Linux
Besides that I get a lot of clock skews on 'make headers_check', but these are unrelated to nohz:
CHECK include/asm/dasd.h make[2]: warning: Clock skew detected. Your build may be incomplete. make[2]: Warning: File `/dev/null' has modification time 5.1e+03 s in the future - 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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