Messages in this thread | | | Date | Mon, 16 Sep 2002 16:45:58 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [PATCH] BUG(): sched.c: Line 944 |
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On 16 Sep 2002, Robert Love wrote: > > Nope. If PREEMPT_ACTIVE is set, schedule() assumes the task is being > preempted and skips certain logic e.g. deactivate_task() (this is the > same code that lets us safely preempt a TASK_ZOMBIE).
Ahhah! I know. You just make lock_depth 0 when you exit, without actually taking the kernel lock. Which fools the logic into accepting a preempt-disable, since it thinks that the preempt disable is due to holding the kernel lock.
Add a big comment and you're all done.
Linus
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