Messages in this thread | | | Date | Sun, 6 Jan 2008 10:45:04 +0100 | From | Ingo Molnar <> | Subject | Re: 2.6.24-rc6-git12: Reported regressions from 2.6.23 |
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* Rafael J. Wysocki <rjw@sisk.pl> wrote:
> Subject : soft lockup - CPU#1 stuck for 15s! [swapper:0] > Submitter : "Parag Warudkar" <parag.warudkar@gmail.com> > Date : 2007-12-07 18:14 > References : http://lkml.org/lkml/2007/12/7/299 > http://bugzilla.kernel.org/show_bug.cgi?id=9525 > Handled-By : "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com> > Thomas Gleixner <tglx@linutronix.de> > Ingo Molnar <mingo@elte.hu>
i think this only occurs with cpuidle, right? drivers/cpuidle/ and CPU_IDLE is new in 2.6.24 so this appears to be a bug in that code (or a bug elsewhere triggered by that code), not a regression from v2.6.23.
this commit might also have improved things:
------------> commit 2bacec8c318ca0418c0ee9ac662ee44207765dd4 Author: Ingo Molnar <mingo@elte.hu> Date: Tue Dec 18 15:21:13 2007 +0100
sched: touch softlockup watchdog after idling
touch softlockup watchdog after idling.
Signed-off-by: Ingo Molnar <mingo@elte.hu> <------------
albeit Parag reported actual real, human-noticeable delays in system behavior and those cannot be false positives.
Ingo
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