Re: [PATCH] futex: Fix hrtimer oops in futex_lock_pi()

2017-04-14 Thread Tony Lindgren
* Tony Lindgren [170414 07:28]: > * Peter Zijlstra [170414 07:25]: > > On Fri, Apr 14, 2017 at 07:08:19AM -0700, Tony Lindgren wrote: > > > Commit cfafcd117da0 ("futex: Rework futex_lock_pi() to use > > > rt_mutex_*_proxy_lock()") caused a regression where things would > > > occasionally randomly

Re: [PATCH] futex: Fix hrtimer oops in futex_lock_pi()

2017-04-14 Thread Tony Lindgren
* Peter Zijlstra [170414 07:25]: > On Fri, Apr 14, 2017 at 07:08:19AM -0700, Tony Lindgren wrote: > > Commit cfafcd117da0 ("futex: Rework futex_lock_pi() to use > > rt_mutex_*_proxy_lock()") caused a regression where things would > > occasionally randomly oops when restarting X: > > > > Unable to

Re: [PATCH] futex: Fix hrtimer oops in futex_lock_pi()

2017-04-14 Thread Peter Zijlstra
On Fri, Apr 14, 2017 at 07:08:19AM -0700, Tony Lindgren wrote: > Commit cfafcd117da0 ("futex: Rework futex_lock_pi() to use > rt_mutex_*_proxy_lock()") caused a regression where things would > occasionally randomly oops when restarting X: > > Unable to handle kernel NULL pointer dereference at vir

[PATCH] futex: Fix hrtimer oops in futex_lock_pi()

2017-04-14 Thread Tony Lindgren
Commit cfafcd117da0 ("futex: Rework futex_lock_pi() to use rt_mutex_*_proxy_lock()") caused a regression where things would occasionally randomly oops when restarting X: Unable to handle kernel NULL pointer dereference at virtual address ... Internal error: Oops: 8005 [#1] SMP ARM ...