Messages in this thread | | | Date | Fri, 4 Feb 2005 14:39:17 -0800 | From | Andrew Morton <> | Subject | Re: Race condition in ptrace |
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Nick Piggin <nickpiggin@yahoo.com.au> wrote: > > 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.
Sure. I wouldn't consider Bodo's patch to be the one to use though.. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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