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SubjectRe: GPF in run_workqueue()/list_del_init(cwq->worklist.next) on resume (was: Re: Help needed: Resume problems in 2.6.32-rc, perhaps related to preempt_count leakage in keventd)
On Thu, Nov 12, 2009 at 06:33:00PM +0100, Thomas Gleixner wrote:
> @@ -145,6 +255,7 @@ static void __queue_work(struct cpu_work
> {
> unsigned long flags;
>
> + debug_work_activate(work);
> spin_lock_irqsave(&cwq->lock, flags);
> insert_work(cwq, work, &cwq->worklist);



Since you are doing that from insert_wq_barrier too, which
endpoint is also insert_work(), why not put debug_work_activate
there instead? Or may be you really prefer to do this outside
the spinlock (which in off-case is zero-overhead). May be that
can sleep or?



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