Messages in this thread | | | Subject | Re: 2.6.19.1-rt15: BUG in __tasklet_action at kernel/softirq.c:568 | From | Steven Rostedt <> | Date | Wed, 20 Dec 2006 22:19:11 -0500 |
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On Wed, 2006-12-20 at 20:50 +0100, Ingo Molnar wrote: > * Robert Crocombe <rcrocomb@gmail.com> wrote: > > > On 12/19/06, Ingo Molnar <mingo@elte.hu> wrote: > > >yeah. This is something that triggers very rarely on certain boxes. Not > > >fixed yet, and it's been around for some time. > > > > Is there anything you would like me to do to help diagnose this? > > to figure out what the bug is :-/ Below is the tasklet redesign patch - > the bug must be in there somewhere.
> +static inline int tasklet_tryunlock(struct tasklet_struct *t) > +{ > + return cmpxchg(&t->state, TASKLET_STATEF_RUN, 0) == TASKLET_STATEF_RUN; > +} > +
This probably isn't it, but is cmpxchg available on all archs now?
-- Steve
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