[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-08-04 Thread Daniel Vetter
On Mon, Aug 03, 2015 at 12:25:11PM -0400, Theodore Ts'o wrote: > On Mon, Aug 03, 2015 at 05:27:29PM +0200, Daniel Vetter wrote: > > > > Ok I updated fixes-stuff with just 2 patches which seem to be enough to > > fix it. Plus a patch to convert Linus' hack into something we can keep > > plus a

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-08-04 Thread Rafael J. Wysocki
On Tuesday, August 04, 2015 12:05:14 AM Daniel Vetter wrote: > On Mon, Aug 3, 2015 at 7:24 PM, Linus Torvalds > wrote: > >> However, I'm > >> still seeing a large number of drm/i915 related warning messages and > >> other kernel kvetching. > > > > I suspect I can live with

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-08-04 Thread Daniel Vetter
On Mon, Aug 3, 2015 at 7:24 PM, Linus Torvalds wrote: >> However, I'm >> still seeing a large number of drm/i915 related warning messages and >> other kernel kvetching. > > I suspect I can live with that for now. The lockdep one looks like > it's mainly an initialization

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-08-03 Thread Daniel Vetter
On Thu, Jul 30, 2015 at 11:50:29AM -0400, Theodore Ts'o wrote: > On Thu, Jul 30, 2015 at 04:40:02PM +0200, Daniel Vetter wrote: > > I have 4 patches in git://people.freedesktop.org/~danvet/drm fixes-stuff > > but I couldn't test them yet since no dp mst here and I didn't find > > anything that

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-08-03 Thread Theodore Ts'o
On Mon, Aug 03, 2015 at 10:24:53AM -0700, Linus Torvalds wrote: > On Mon, Aug 3, 2015 at 9:25 AM, Theodore Ts'o wrote: > > > > I've just tried pulling in your updated fixes-stuff, and it avoids the > > oops and allows external the monitor to work correctly. > > Good. Have either of you tested

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-08-03 Thread Theodore Ts'o
On Mon, Aug 03, 2015 at 05:27:29PM +0200, Daniel Vetter wrote: > > Ok I updated fixes-stuff with just 2 patches which seem to be enough to > fix it. Plus a patch to convert Linus' hack into something we can keep > plus a drive-by WARNING fix in mst that got in the way for me. > > Seems to work

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-08-03 Thread Linus Torvalds
On Mon, Aug 3, 2015 at 9:25 AM, Theodore Ts'o wrote: > > I've just tried pulling in your updated fixes-stuff, and it avoids the > oops and allows external the monitor to work correctly. Good. Have either of you tested the suspend/resume behavior? Is that fixed too? >

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-30 Thread Dave Airlie
On 30 July 2015 at 15:18, Linus Torvalds wrote: > On Wed, Jul 29, 2015 at 6:39 PM, Theodore Ts'o wrote: >> >> It's here: https://goo.gl/photos/xHjn2Z97JQEw6k2C9 > > You didn't catch enough of the code line to decode the code, but it's > early enough in drm_crtc_index() (just five bytes in)

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-30 Thread Daniel Vetter
On Thu, Jul 30, 2015 at 11:50:29AM -0400, Theodore Ts'o wrote: > On Thu, Jul 30, 2015 at 04:40:02PM +0200, Daniel Vetter wrote: > > I have 4 patches in git://people.freedesktop.org/~danvet/drm fixes-stuff > > but I couldn't test them yet since no dp mst here and I didn't find > > anything that

[Intel-gfx] [REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-30 Thread Takashi Iwai
On Thu, 30 Jul 2015 17:32:28 +0200, Theodore Ts'o wrote: > > On Thu, Jul 30, 2015 at 04:40:02PM +0200, Daniel Vetter wrote: > > On Wed, Jul 29, 2015 at 10:18:16PM -0700, Linus Torvalds wrote: > > > drivers/gpu/drm/drm_atomic_helper.c | 8 +--- > > > 1 file changed, 5 insertions(+), 3

[Intel-gfx] [REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-30 Thread Daniel Vetter
On Thu, Jul 30, 2015 at 5:32 PM, Theodore Ts'o wrote: > On Thu, Jul 30, 2015 at 04:40:02PM +0200, Daniel Vetter wrote: >> On Wed, Jul 29, 2015 at 10:18:16PM -0700, Linus Torvalds wrote: >> > drivers/gpu/drm/drm_atomic_helper.c | 8 +--- >> > 1 file changed, 5 insertions(+), 3 deletions(-) >>

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-30 Thread Daniel Vetter
On Wed, Jul 29, 2015 at 10:18:16PM -0700, Linus Torvalds wrote: > drivers/gpu/drm/drm_atomic_helper.c | 8 +--- > 1 file changed, 5 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/drm_atomic_helper.c > b/drivers/gpu/drm/drm_atomic_helper.c > index 5b59d5ad7d1c..aac212297b49

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-30 Thread Theodore Ts'o
On Thu, Jul 30, 2015 at 11:50:29AM -0400, Theodore Ts'o wrote: > I've tried pulling in your patches from fixes-stuff, onto Linus's tree > (without Linus's fix), and the good news is that I'm no longer > crashing on boot. > > The *bad* news is that (a) it breaks the external monitor attached to >

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-30 Thread Theodore Ts'o
On Thu, Jul 30, 2015 at 04:40:02PM +0200, Daniel Vetter wrote: > I have 4 patches in git://people.freedesktop.org/~danvet/drm fixes-stuff > but I couldn't test them yet since no dp mst here and I didn't find > anything that would ship faster than 1-2 weeks yet. I'll try to get some > other people

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-30 Thread Theodore Ts'o
On Thu, Jul 30, 2015 at 04:40:02PM +0200, Daniel Vetter wrote: > On Wed, Jul 29, 2015 at 10:18:16PM -0700, Linus Torvalds wrote: > > drivers/gpu/drm/drm_atomic_helper.c | 8 +--- > > 1 file changed, 5 insertions(+), 3 deletions(-) > > > > diff --git a/drivers/gpu/drm/drm_atomic_helper.c > >

[Intel-gfx] [REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-30 Thread Linus Torvalds
On Thu, Jul 30, 2015 at 8:57 AM, Takashi Iwai wrote: > On Thu, 30 Jul 2015 17:32:28 +0200, > Theodore Ts'o wrote: >> >> BTW, is there any chance that I can suspend my laptop, and then move >> it from my docking station at home (where I have a Dell 30" display) >> to my docking station at work

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-29 Thread Linus Torvalds
On Wed, Jul 29, 2015 at 6:39 PM, Theodore Ts'o wrote: > > It's here: https://goo.gl/photos/xHjn2Z97JQEw6k2C9 You didn't catch enough of the code line to decode the code, but it's early enough in drm_crtc_index() (just five bytes in) that it's almost certainly the very first dereference, so it's

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-29 Thread Richard Harman
(long time lurker, first time poster) This (because the dock has a DP MST hub built in) reminds me of this crash w/ my W540 - which I think are pretty similar hardware: https://bugzilla.redhat.com/show_bug.cgi?id=1180747 Not enough of a coder to really troubleshoot, but I've got a dock, a MST

[REGRESSION] Re: i915 driver crashes on T540p if docking station attached

2015-07-29 Thread Theodore Ts'o
On Wed, Jul 29, 2015 at 08:49:37PM -0400, Theodore Ts'o wrote: > > Unfortunately the failure causes a series of recursive faults and I > haven't been able to capture the stack trace, but on 4.2-rcX kernels, > I can reliably cause the system to crash if my T540p is booted with > the docking

i915 driver crashes on T540p if docking station attached

2015-07-29 Thread Theodore Ts'o
Unfortunately the failure causes a series of recursive faults and I haven't been able to capture the stack trace, but on 4.2-rcX kernels, I can reliably cause the system to crash if my T540p is booted with the docking station attached. It will also crash if I boot the system first, and then