Re: [PATCH] kernel BUG at sched.c:944! only with CONFIG_PREEMPT=y]

From: Thunder from the hill (thunder@lightweight.ods.org)
Date: Fri Sep 13 2002 - 06:56:05 EST

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Hi,

On 13 Sep 2002, Robert Love wrote:
> On Fri, 2002-09-13 at 03:36, Robert Love wrote:
> Actually, looking at this again, we probably want to still BUG() if
> in_interrupt() but _not_ if in_atomic().

- if (unlikely(in_atomic()))
- BUG();
+ if (unlikely((in_interrupt() || (!in_atomic())) && preempt_count() != PREEMPT_ACTIVE)) {
+ printk(KERN_ERROR "schedule() called while non-atomic, or in interrupt!\n");
+ show_stack(NULL);
+ }

Thunder

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