Re: [Suspend2-devel] Problem with CFS V20 and Suspend2/tuxonice

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* Matthias Hensler <[email protected]> wrote:

> > Same problem here: Core Duo, Kernel 2.6.22.5, Suspend 2.2.10, CFS 
> > v20.2.
> 
> Me too for 2.6.22.5, TuxOnIce 2.2.10 and Centrino based notebook.

possible bugfix below.

	Ingo

Index: linux-cfs-2.6.22.5.q/kernel/sched.c
===================================================================
--- linux-cfs-2.6.22.5.q.orig/kernel/sched.c
+++ linux-cfs-2.6.22.5.q/kernel/sched.c
@@ -5043,6 +5043,8 @@ static int migration_thread(void *data)
 		struct migration_req *req;
 		struct list_head *head;
 
+		try_to_freeze();
+
 		spin_lock_irq(&rq->lock);
 
 		if (cpu_is_offline(cpu)) {
@@ -5399,6 +5401,7 @@ migration_call(struct notifier_block *nf
 		p = kthread_create(migration_thread, hcpu, "migration/%d", cpu);
 		if (IS_ERR(p))
 			return NOTIFY_BAD;
+		p->flags |= PF_NOFREEZE;
 		kthread_bind(p, cpu);
 		/* Must be high prio: stop_machine expects to yield to it. */
 		rq = task_rq_lock(p, &flags);

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