Messages in this thread | | | Subject | Re: [PATCH 2.6.14-rc1-git5] sched: disable preempt in idle tasks | From | Nigel Cunningham <> | Date | Wed, 02 Nov 2005 16:04:04 +1100 |
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Hi Nick.
On Wed, 2005-11-02 at 13:46, Nick Piggin wrote: > Hi Shaohua, > > Li, Shaohua wrote: > > > > > What's the status of the patch? I didn't see it in base kernel. > > We found another bug related with this issue. On UP system, if a CPU > > enters > > 'mwait_idle', it never leaves it, as the 'mwait_idle' loop will never > > end. > > Disabling preempt fixes the bug. Should I submit a patch just disabling > > preempt in 'mwait_idle' or wait for your patch? > > > > The patch is in Andrew's tree, and it should get merged for 2.6.15. > If you have verified that disabling preempt in mwait_idle fixes the > bug, then you may like to send that to the 2.6.14.stable guys.
I sent an email a couple of weeks ago saying that it looked like it did the trick for me - no problems in two weeks of testing. (I would have easily seen it within a day or two prior to this).
Regards,
Nigel
> Thanks, > Nick --
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