On 07/23, Jeremy Katz wrote:
>
> On Fri, 20 Jul 2007, Oleg Nesterov wrote:
>
> >I still can't believe we have a double-free problem, this looks imposiible.
> >Do you see the
> >
> > "idr_remove called for id=%d which is not allocated.\n"
> >
> >in syslog?
>
> No. I also added some accounting with atomic counters, and don't see
> evidence of a second call to release_posix_timer.
Interesting. Could you show the patch? Where does sys_timer_create() set
counter == 1?
> >Could you try the patch below? Perhaps we have some wierd problem with
> >->sigq corruption.
>
> Tried, with apparent effect.
You mean, "null pointer dereference" in release_posix_timer() ? Or it was
BUG_ON(timr && !timr->sigq) in lock_timer() ?
I assume you didn't apply any other patches except Thomas's, yes?
Oleg.
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