Messages in this thread | | | Date | Sat, 05 Feb 2005 09:15:40 +1100 | From | Nick Piggin <> | Subject | Re: Race condition in ptrace |
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Bodo Stroesser wrote: > Nick Piggin wrote: > >> Bodo Stroesser wrote:
>> I don't see how this could help because AFAIKS, child->saving is only >> set and cleared while the runqueue is locked. And the same runqueue lock >> is taken by wait_task_inactive. >> > > Sorry, that not right. There are some routines called by sched(), that > release > and reacquire the runqueue lock. >
Oh yeah, it is the wake_sleeping_dependent / dependent_sleeper crap. Sorry, you are right. And that's definitely a bug in sched.c, because it breaks wait_task_inactive, as you've rightly observed.
Andrew, IMO this is another bug to hold 2.6.11 for.
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