On Thu, 2002-09-12 at 08:14, Steven Cole wrote:
> I got the following BUG at sched.c:944! with 2.5.34-mm2 and PREEMPT on.
> This was repeatable.
>
> With no PREEMPT, 2.5.34-mm2 booted and is running fine. Some other
> options used: SMP, HUGETLB_PAGE, HIGHPTE, HIGHMEM4G.
The above also occurred with no SMP.
I backed out Changeset 1.606 which did this in kernel/sched.c:
- if (unlikely(in_interrupt()))
+ if (unlikely(in_atomic()))
and 2.5.34-mm2 was able to boot with CONFIG_PREEMPT=y.
Obviously, this is not a fix of any kind, but shows that the scheduler
may be being called with a preemption lock.
Steven
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This archive was generated by hypermail 2b29 : Sun Sep 15 2002 - 22:00:30 EST