Hi,
On Sun, 12 Mar 2006, Thomas Gleixner wrote:
> On Sun, 2006-03-12 at 14:26 +0100, Roman Zippel wrote:
> > > softirq runs on CPU0
> > > base->lock()
> > >
> > > remove_timer(timer);
> > >
> > > base->unlock()
> > > signal of previous expiry is delivered on CPU1
> > > timer is reqeued.
>
> -------> sig_ignore is set
??? I can't find any symbol 'sig_ignore'.
> > > requeue = timer->fn();
> > >
> > > base->lock()
> > >
> > > if (requeue)
> > > enqueue_timer(timer)
> > >
What actually happened is that requeue is false and in the meantime the
timer was restarted on another cpu via signal delivery and
run_hrtimer_queue would set the state to expired, while the timer was
still active -> OOPS.
bye, Roman
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