Re: 4.9-rc1 lockdep warning suggesting a deadlock between nouveau and i915 with prime video outputs active

2017-07-13 Thread Daniel Vetter
On Thu, Jul 13, 2017 at 03:04:58PM +0100, Chris Wilson wrote: > Quoting Jiri Slaby (2017-07-13 14:57:31) > > Stealing this thread as an opensuse user hit that too: > > https://bugzilla.suse.com/show_bug.cgi?id=1045105 > > It's a false positive. I did once upon a time send some patches to move >

Re: 4.9-rc1 lockdep warning suggesting a deadlock between nouveau and i915 with prime video outputs active

2017-07-13 Thread Peter Zijlstra
On Thu, Jul 13, 2017 at 03:57:31PM +0200, Jiri Slaby wrote: > Hmm, not that easy: > [ +0.011001] BUG: key 8807573ed758 not in .data! > [ +0.000103] DEBUG_LOCKS_WARN_ON(1) > [ +0.12] [ cut here ] > [ +0.000147] WARNING: CPU: 1 PID: 282 at >

Re: 4.9-rc1 lockdep warning suggesting a deadlock between nouveau and i915 with prime video outputs active

2017-07-13 Thread Chris Wilson
Quoting Jiri Slaby (2017-07-13 14:57:31) > Stealing this thread as an opensuse user hit that too: > https://bugzilla.suse.com/show_bug.cgi?id=1045105 It's a false positive. I did once upon a time send some patches to move the lockdep warning to kref so that didn't need to call it from drm before

Re: 4.9-rc1 lockdep warning suggesting a deadlock between nouveau and i915 with prime video outputs active

2017-07-13 Thread Jiri Slaby
Stealing this thread as an opensuse user hit that too: https://bugzilla.suse.com/show_bug.cgi?id=1045105 On 11/09/2016, 06:26 PM, Chris Wilson wrote: > On Wed, Nov 09, 2016 at 06:02:40PM +0100, Hans de Goede wrote: >> Hi, >> >> I noticed this while testing the displayport output attached >> to

4.9-rc1 lockdep warning suggesting a deadlock between nouveau and i915 with prime video outputs active

2016-11-09 Thread Hans de Goede
Hi, On 09-11-16 18:26, Chris Wilson wrote: > On Wed, Nov 09, 2016 at 06:02:40PM +0100, Hans de Goede wrote: >> Hi, >> >> I noticed this while testing the displayport output attached >> to the nvidia GPU on a Thinkpad P50 while the intel GPU >> was driving the LCD panel (and was the primary GPU

4.9-rc1 lockdep warning suggesting a deadlock between nouveau and i915 with prime video outputs active

2016-11-09 Thread Hans de Goede
Hi, I noticed this while testing the displayport output attached to the nvidia GPU on a Thinkpad P50 while the intel GPU was driving the LCD panel (and was the primary GPU according to Xorg). This was while logging into gnome-3 with Xorg-1.19-rc2, from gdm (also running on top of Xorg-1.19-rc2).

4.9-rc1 lockdep warning suggesting a deadlock between nouveau and i915 with prime video outputs active

2016-11-09 Thread Chris Wilson
On Wed, Nov 09, 2016 at 06:02:40PM +0100, Hans de Goede wrote: > Hi, > > I noticed this while testing the displayport output attached > to the nvidia GPU on a Thinkpad P50 while the intel GPU > was driving the LCD panel (and was the primary GPU according > to Xorg). This was while logging into