Messages in this thread | | | Date | Fri, 13 Jul 2012 14:54:02 -0400 | From | Dave Jones <> | Subject | Re: 3.5-rc6 futex_wait_requeue_pi oops. |
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On Fri, Jul 13, 2012 at 08:47:38PM +0200, Thomas Gleixner wrote: > On Fri, 13 Jul 2012, Dave Jones wrote: > > > Looks like calling futex() with garbage makes things unhappy. > > WARN_ON(!&q.pi_state); > pi_mutex = &q.pi_state->pi_mutex; > ret = rt_mutex_finish_proxy_lock(pi_mutex, to, &rt_waiter, 1); > debug_rt_mutex_free_waiter(&rt_waiter); > > So there is some weird way which causes q.pi_state = NULL. Dave, did > you see the warning before the oops happened ?
No, that didn't seem to trigger.
Dave
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