* Linus Torvalds <[EMAIL PROTECTED]> wrote:
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10815
> > Subject : 2.6.26-rc4: RIP find_pid_ns+0x6b/0xa0
> > Submitter : Alexey Dobriyan <[EMAIL PROTECTED]>
> > Date : 2008-05-27 09:23 (41 days old)
> > References : http://lkml.org/lkml/2008/5/27/9
> > http://lkml.org/lkml/2008/6/14/87
> > Handled-By : Oleg Nesterov <[EMAIL PROTECTED]>
> > Linus Torvalds <[EMAIL PROTECTED]>
> > Paul E. McKenney <[EMAIL PROTECTED]>
> > Patch : http://lkml.org/lkml/2008/5/28/16
>
> This one is the same thing that is reported as unresolved, and no, I
> don't think that existing patch was ever really tested to fix
> anything. Paul?
>
> I suspect SRCU will need to be simply marked BROKEN for now, because
> nobody knows what the problem Alexey sees is. Apparently it's been
> seen by a few other people too.
I'm not sure it's directly related to SRCU - it can change timings and
freeing patterns enough to tickle other bugs. Since Alexey Dobriyan has
reported it - are perhaps namespaces in use during this stress-test?
Maybe it's some namespaces related bug that is more easily reproduced
under SRCU - namespaces is not a commonly tested feature.
Also, i've been running rcutorture stress-tests on a number of
test-systems ever since this got reported (and they are running
currently as well) and cannot see it - neither could Paul reproduce it.
( and Paul is very good in producing RCU related problems - he's
triggered and fixed many RCU related problems that no-one else saw
before. )
Ingo
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