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SubjectRe: [Bug #10815] 2.6.26-rc4: RIP find_pid_ns+0x6b/0xa0


On Sun, 15 Jun 2008, Paul E. McKenney wrote:
> >
> > Both patches (independently) do not help with rcutortures failures:
> >
> > [ 58.968404] rcu-torture:--- Start of test: nreaders=4 nfakewriters=4 stat_interval=0 verbose=0 test_no_idle_hz=0 shuffle_interval = 5
> > [ 159.044524] rcu-torture: rtc: 0000000000000000 ver: 53859 tfle: 0 rta: 53859 rtaf: 18 rtf: 53797 rtmbe: 0
> > [ 159.044527] rcu-torture: !!! Reader Pipe: 65565142 4275 1 0 0 0 0 0 0 0 0
> > [ 159.044529] rcu-torture: Reader Batch: 65564196 5207 7 3 1 1 0 1 1 0 1
> > [ 159.044530] rcu-torture: Free-Block Circulation: 53858 53853 53846 53843 53834 53825 53816 53808 53803 53797 0
> > [ 159.044976] rcu-torture:--- End of test: FAILURE: nreaders=4 nfakewriters=4 stat_interval=0 verbose=0 test_no_idle_hz=0 shuffle_interval = 5
>
> And the repeat-by is simply running LTP in parallel with rcutorture?
> This is a one-hour run of rcutorture or thereabouts?

Should we mark PREEMPT_RCU as BROKEN for now? I don't know if anybody
really enables it, but it might be a good idea to make sure people don't
do so thinking it's good..

Linus


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