Messages in this thread Patch in this message | | | Date | Mon, 4 Feb 2008 13:01:32 +0100 | From | Ingo Molnar <> | Subject | Re: 2.6.24-git4+ regression |
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* Lukas Hejtmanek <xhejtman@ics.muni.cz> wrote:
> but in such a case, kernel 2.6.24-git13 does oops at startup in > sched_slice.
could you tell me more about this oops? You booted unmodified, latest -git and it oopsed in sched_slice()? The patch below should work around any oopses in sched_slice(). [but this is really a 'must not happen' scenario - so a just-for-testing patch]
Ingo
Index: linux-x86.q/kernel/sched_fair.c =================================================================== --- linux-x86.q.orig/kernel/sched_fair.c +++ linux-x86.q/kernel/sched_fair.c @@ -268,7 +268,8 @@ static u64 sched_slice(struct cfs_rq *cf u64 slice = __sched_period(cfs_rq->nr_running); slice *= se->load.weight; - do_div(slice, cfs_rq->load.weight); + if (cfs_rq->load.weight) + do_div(slice, cfs_rq->load.weight); return slice; }
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