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SubjectRe: [2.6.30-rc1] RCU detected CPU 1 stall
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Paul E. McKenney wrote:
> > Hello.
> >
> > Paul E. McKenney wrote:
> > > Is this reproducible?
> > Not always, but it is reproducible.
>
> Does it reproduce well enough to bisect?
>
Not impossible, but difficult. This happens less than once on 10 trials.

> > Al Viro wrote:
> > > I'd really love to see results of repeated alt-sysrq-p/alt-sysrq-l, just
> > > to see where was it actually spinning.
> > Below is sysrq message.
> > Maybe something related to khelper's current->mm == NULL warning problem.
> > Full log is at http://I-love.SAKURA.ne.jp/tmp/dmesg-2.6.30-rc1-200904130930.txt .
>
> I have to defer to the mm guys on this one.

Latest info on khelper's current->mm == NULL warning problem is at
http://lkml.org/lkml/2009/4/13/85 .

Thanks.


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