Messages in this thread | | | Date | Tue, 5 Jan 2010 17:58:30 -0500 | Subject | Re: BUG during shutdown - bisected to commit e2912009 | From | Marc Dionne <> |
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On Tue, Jan 5, 2010 at 5:18 AM, Xiaotian Feng <dfeng@redhat.com> wrote: > This is outputed by sound module, but it will not affect clockevents, could > you please try following patch and let me know the output before BUG_ON > happens? We can gather more information on the BUG_ON. Thank you. > > diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c > index 6f740d9..7c945e8 100644 > --- a/kernel/time/clockevents.c > +++ b/kernel/time/clockevents.c > @@ -260,6 +260,9 @@ void clockevents_notify(unsigned long reason, void *arg) > list_for_each_entry_safe(dev, tmp, &clockevent_devices, list) > { > if (cpumask_test_cpu(cpu, dev->cpumask) && > cpumask_weight(dev->cpumask) == 1) { > + if (dev->mode != CLOCK_EVT_MODE_UNUSED) > + printk("invalid dev %s mode %d on > cpu %d\n", dev->name, > + dev->mode, cpu); > BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED); > list_del(&dev->list);
I don't get anything on screen from the printk - is there a trick needed to getting printk output at that stage of shutting down? I tried inserting an mdelay() before the BUG, which delayed the bug output but still didn't print the invalid dev message.
Thanks, Marc -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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