From: Steven Rostedt <rostedt@goodmis.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Robert Crocombe <rcrocomb@gmail.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.19.1-rt15: BUG in __tasklet_action at kernel/softirq.c:568
Date: Wed, 20 Dec 2006 22:19:11 -0500 [thread overview]
Message-ID: <1166671151.852.4.camel@localhost.localdomain> (raw)
In-Reply-To: <20061220195008.GB14316@elte.hu>
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
next prev parent reply other threads:[~2006-12-21 3:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-18 17:48 2.6.19.1-rt15: BUG in __tasklet_action at kernel/softirq.c:568 Robert Crocombe
2006-12-19 17:57 ` Ingo Molnar
2006-12-20 12:37 ` Robert Crocombe
2006-12-20 19:50 ` Ingo Molnar
2006-12-21 3:19 ` Steven Rostedt [this message]
2006-12-26 23:40 ` Ingo Molnar
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