Messages in this thread | | | Date | Wed, 6 Jun 2007 12:31:32 +0200 | From | "Jesper Juhl" <> | Subject | Re: [PATCH -rt] Fix TASKLET_STATE_SCHED WARN_ON() |
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On 06/06/07, john stultz <johnstul@us.ibm.com> wrote: > --- 2.6-rt.orig/kernel/softirq.c 2007-06-05 18:30:54.000000000 -0700 > +++ 2.6-rt/kernel/softirq.c 2007-06-05 18:36:44.000000000 -0700 > @@ -544,10 +544,17 @@ static void inline > __tasklet_common_schedule(struct tasklet_struct *t, struct tasklet_head *head, unsigned int nr) > { > if (tasklet_trylock(t)) { > - WARN_ON(t->next != NULL); > - t->next = head->list; > - head->list = t; > - raise_softirq_irqoff(nr); > + /* We may have been preempted before tasklet_trylock > + * and __tasklet_action may have already run. > + * So double check the sched bit while the takslet
s/takslet/tasklet/
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