Re: [Intel-gfx] frequent x crashes with gen6/sna

Re: [Intel-gfx] frequent x crashes with gen6/sna

[Gwenole Beauchesne]

Hi,

2011/10/17 Daniel Vetter <daniel-/w4YWyX8dFk@public.gmane.org>:
> On Mon, Oct 17, 2011 at 01:45:28PM +0200, Dieter Mummenschanz wrote:

[...]
>> show random pixel depthbuffer errors. Is this a known issue?  Regarding
>> the video streams causing the gpu hang, those are unfortunately
>> copyrighted material (i.e. Star Wars Bluray for example). The best way
>> is to play multiple hi bitrate-streams with different formats
>> simultaneously and run a free OpenGL game like prboom-plus. I'll do some
>> seaching on the web for free test streams to reproduce the hang.
>
> Oh, I don't want you to publish them, just check whether it's a specific
> one or more random. And maybe it helps in reproducing.

Could you please try with the Big Buck's Bunny clip for example?
<http://www.bigbuckbunny.org/index.php/download/>

Thanks,
Gwenole.

Re: [Intel-gfx] frequent x crashes with gen6/sna

[Daniel Vetter]

On Mon, Oct 17, 2011 at 02:37:21PM +0200, Dieter Mummenschanz wrote:
> Hi Daniel,
> 
> no problem. dmesg.log attached. 
> To reproduce the hang: try to play two or more bluray streams at once
> and probably a hires wmv stream as well using mplayer-vaapi. also run a
> opengl game like Quake3 or prboom-plus
> (http://prboom-plus.sourceforge.net). You'll need an additional "pwad"
> file for prboom. PM me for that. With everything up and running, open a
> browser and do normal desktop work. That'll do it. Sometimes after a
> minute - sometimes after an hour. One more thing: I have a mobile
> i7-2620M chip, no additional gpu, running with cpufreq-tools on demand.
> The Notebook runs on AC Power all the time.
> 
> If I can help in any way (testing patches, etc), please let me know :-)

As I kinda expected, you're running with VT-d/DMAR switched on. That's
implicated in quite a few rc6/strange hang reports already. Can you check
what happens when you turn that off, either in the bios or with

intel_iommu=off

on the kernel cmdline?

Thanks, Daniel
-- 
Daniel Vetter
Mail: daniel-/w4YWyX8dFk@public.gmane.org
Mobile: +41 (0)79 365 57 48

Re: [Intel-gfx] frequent x crashes with gen6/sna

[Daniel Vetter]

On Mon, Oct 17, 2011 at 03:54:03PM +0200, Dieter Mummenschanz wrote:
> Hi Daniel,
> 
> I believe I tried that already but I'll give it another shot. To avoid
> another screw up: Can I check in proc or sysfs to see, if iommu is
> really disabled? I also have pcie_aspm=force set as kernel parameter to
> save some watts but it does not seem to contribute to the gpu hangs.

If you disable it in the bios, there should be no IOMMU message left in
dmesg. Disabling it on the kernel cmdline leaves a few behind (they
announce that the bios supports dmar).

Meanwhile I've stitched together the patches for libva, can you try the
for-dieter branch at:

http://cgit.freedesktop.org/~danvet/libva-intel/

Also please ensure that you have the latest xf86-video-intel from git
master installed.

Thanks, Daniel

PS: Please don't cut out libva from the cc: list.
-- 
Daniel Vetter
Mail: daniel-/w4YWyX8dFk@public.gmane.org
Mobile: +41 (0)79 365 57 48

Re: [Intel-gfx] frequent x crashes with gen6/sna

[Daniel Vetter]

On Mon, Oct 17, 2011 at 06:01:56PM +0200, Dieter Mummenschanz wrote:
> Hi Daniel,
> 
> ok I did a git clone git://anongit.freedesktop.org/libva (hope this is the right one?) and in the libva checkout I issued: 
> 
> git pull git://freedesktop.org/~danvet/libva-intel for-dieter 
> warning: no common commits
> remote: Counting objects: 1632, done.
> remote: Compressing objects: 100% (447/447), done.
> remote: Total 1632 (delta 1174), reused 1632 (delta 1174)
> Receiving objects: 100% (1632/1632), 617.29 KiB | 230 KiB/s, done.
> Resolving deltas: 100% (1174/1174), done.
> From git://freedesktop.org/~danvet/libva-intel
>  * branch            for-dieter -> FETCH_HEAD
> Auto-merging configure.ac
> CONFLICT (add/add): Merge conflict in configure.ac
> Auto-merging Makefile.am
> CONFLICT (add/add): Merge conflict in Makefile.am
> Auto-merging .gitignore
> CONFLICT (add/add): Merge conflict in .gitignore
> Automatic merge failed; fix conflicts and then commit the result.
> 
> help! :-(

Ok, I've given that git repo a head, so your usual git clone should work.
Btw, you're sure you have the latest libva? It moved to 

http://cgit.freedesktop.org/vaapi/intel-driver/

Yours, Daniel
-- 
Daniel Vetter
Mail: daniel-/w4YWyX8dFk@public.gmane.org
Mobile: +41 (0)79 365 57 48

Re: frequent x crashes with gen6/sna

[Dieter Mummenschanz]

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Hi Daniel,

ok now I got your patch from git and will give it a try asap. Meanwhile the intel_iommu=off (with rc6 enabled) switch seems to make the system somehow more stable. the gpu hangs don't appear that often but they still occur! strangely after the hang/resume, the OpenGL game crashes immediately with:

intel_do_flush_locked failed: Input/output error
and raises the same error when I try to start it up again.

mplayer also bails out with:
mplayer: dri2_util.c:109: dri2GetRenderingBuffer: Assertion `buffers' failed.
MPlayer interrupted by signal 6 in module: flip_page

I have to reboot in order to get mplayer / the game running.

I've never experienced that before. i915 error state attached.

Cheers,
Dieter

-------- Original-Nachricht --------
> Datum: Mon, 17 Oct 2011 19:46:40 +0200
> Von: Daniel Vetter <daniel@ffwll.ch>
> An: Dieter Mummenschanz <mummenschanz@gmx.net>
> CC: Daniel Vetter <daniel@ffwll.ch>, intel-gfx@lists.freedesktop.org, libva@lists.freedesktop.org
> Betreff: Re: [Intel-gfx] frequent x crashes with gen6/sna

> On Mon, Oct 17, 2011 at 06:01:56PM +0200, Dieter Mummenschanz wrote:
> > Hi Daniel,
> > 
> > ok I did a git clone git://anongit.freedesktop.org/libva (hope this is
> the right one?) and in the libva checkout I issued: 
> > 
> > git pull git://freedesktop.org/~danvet/libva-intel for-dieter 
> > warning: no common commits
> > remote: Counting objects: 1632, done.
> > remote: Compressing objects: 100% (447/447), done.
> > remote: Total 1632 (delta 1174), reused 1632 (delta 1174)
> > Receiving objects: 100% (1632/1632), 617.29 KiB | 230 KiB/s, done.
> > Resolving deltas: 100% (1174/1174), done.
> > From git://freedesktop.org/~danvet/libva-intel
> >  * branch            for-dieter -> FETCH_HEAD
> > Auto-merging configure.ac
> > CONFLICT (add/add): Merge conflict in configure.ac
> > Auto-merging Makefile.am
> > CONFLICT (add/add): Merge conflict in Makefile.am
> > Auto-merging .gitignore
> > CONFLICT (add/add): Merge conflict in .gitignore
> > Automatic merge failed; fix conflicts and then commit the result.
> > 
> > help! :-(
> 
> Ok, I've given that git repo a head, so your usual git clone should work.
> Btw, you're sure you have the latest libva? It moved to 
> 
> http://cgit.freedesktop.org/vaapi/intel-driver/
> 
> Yours, Daniel
> -- 
> Daniel Vetter
> Mail: daniel@ffwll.ch
> Mobile: +41 (0)79 365 57 48

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Re: [Intel-gfx] frequent x crashes with gen6/sna

[Daniel Vetter]

On Mon, Oct 17, 2011 at 10:20:09PM +0200, Dieter Mummenschanz wrote:
> ok now I got your patch from git and will give it a try asap. Meanwhile
> the intel_iommu=off (with rc6 enabled) switch seems to make the system
> somehow more stable. the gpu hangs don't appear that often but they
> still occur! strangely after the hang/resume, the OpenGL game crashes
> immediately with:
> 
> intel_do_flush_locked failed: Input/output error
> and raises the same error when I try to start it up again.
> 
> mplayer also bails out with:
> mplayer: dri2_util.c:109: dri2GetRenderingBuffer: Assertion `buffers' failed.
> MPlayer interrupted by signal 6 in module: flip_page
> 
> I have to reboot in order to get mplayer / the game running.
> 
> I've never experienced that before. i915 error state attached.

Well, that usually means that the kernel couldn't reset the gpu after a
hang. You should see a message to that effect in dmesg.
-Daniel
-- 
Daniel Vetter
Mail: daniel-/w4YWyX8dFk@public.gmane.org
Mobile: +41 (0)79 365 57 48

Re: [Intel-gfx] frequent x crashes with gen6/sna

[Dieter Mummenschanz]

Hi Daniel,

I've installed your libva patch:

libva: libva version 0.32.0
libva: va_getDriverName() returns 0
libva: Trying to open /usr/local/lib/dri/i965_drv_video.so
libva: va_openDriver() returns 0
vainfo: VA API version: 0.32
vainfo: Driver version: Intel i965 driver - 1.0.15.pre1

No Changes. With iommu switched off there are less frequent hangs but there still are :-(. dmesg shows:

WARNING: at drivers/gpu/drm/i915/i915_drv.c:354 gen6_gt_force_wake_get+0x1f/0x3c [i915]()
Hardware name: 4236NGG
Modules linked in: snd_hda_codec_conexant fbcon font bitblit softcursor i915 thinkpad_acpi nvram drm_kms_helper drm fb fbdev cfbcopyarea video iwlagn backlight cfbimgblt cfbfillrect e1000e snd_hda_intel snd_hda_codec intel_agp intel_gtt agpgart
Pid: 0, comm: swapper Not tainted 3.1.0-rc4+ #1
Call Trace:
 <IRQ>  [<ffffffff8102fcf2>] ? warn_slowpath_common+0x78/0x8c
 [<ffffffffa0113fd9>] ? i915_vblank_swap+0x6/0x6 [i915]
 [<ffffffffa010c484>] ? gen6_gt_force_wake_get+0x1f/0x3c [i915]
 [<ffffffffa01140e2>] ? i915_hangcheck_elapsed+0x109/0x29a [i915]
 [<ffffffffa0113fd9>] ? i915_vblank_swap+0x6/0x6 [i915]
 [<ffffffff81039799>] ? run_timer_softirq+0x195/0x222
 [<ffffffff8103466f>] ? __do_softirq+0x7f/0x106
 [<ffffffff813b4f2c>] ? call_softirq+0x1c/0x30
 [<ffffffff81003396>] ? do_softirq+0x31/0x67
 [<ffffffff810348a0>] ? irq_exit+0x44/0xa5
 [<ffffffff81015cdd>] ? smp_apic_timer_interrupt+0x85/0x95
 [<ffffffff813b468b>] ? apic_timer_interrupt+0x6b/0x70
 <EOI>  [<ffffffff811d5022>] ? intel_idle+0xcd/0xe9
 [<ffffffff811d4ffe>] ? intel_idle+0xa9/0xe9
 [<ffffffff812ae307>] ? cpuidle_idle_call+0xa0/0xdb
 [<ffffffff81000840>] ? cpu_idle+0x52/0x75
 [<ffffffff81677b60>] ? start_kernel+0x401/0x40c

In this special case the gpu was successfully reset and continued normally. 

Any other ideas?

Regards
Dieter

-------- Original-Nachricht --------
> Datum: Mon, 17 Oct 2011 22:46:32 +0200
> Von: Daniel Vetter <daniel-/w4YWyX8dFk@public.gmane.org>
> An: Dieter Mummenschanz <mummenschanz-hi6Y0CQ0nG0@public.gmane.org>
> CC: Daniel Vetter <daniel-/w4YWyX8dFk@public.gmane.org>, libva-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, intel-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
> Betreff: Re: [Intel-gfx] frequent x crashes with gen6/sna

> On Mon, Oct 17, 2011 at 10:20:09PM +0200, Dieter Mummenschanz wrote:
> > ok now I got your patch from git and will give it a try asap. Meanwhile
> > the intel_iommu=off (with rc6 enabled) switch seems to make the system
> > somehow more stable. the gpu hangs don't appear that often but they
> > still occur! strangely after the hang/resume, the OpenGL game crashes
> > immediately with:
> > 
> > intel_do_flush_locked failed: Input/output error
> > and raises the same error when I try to start it up again.
> > 
> > mplayer also bails out with:
> > mplayer: dri2_util.c:109: dri2GetRenderingBuffer: Assertion `buffers'
> failed.
> > MPlayer interrupted by signal 6 in module: flip_page
> > 
> > I have to reboot in order to get mplayer / the game running.
> > 
> > I've never experienced that before. i915 error state attached.
> 
> Well, that usually means that the kernel couldn't reset the gpu after a
> hang. You should see a message to that effect in dmesg.
> -Daniel
> -- 
> Daniel Vetter
> Mail: daniel-/w4YWyX8dFk@public.gmane.org
> Mobile: +41 (0)79 365 57 48

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Re: frequent x crashes with gen6/sna

[Daniel Vetter]

On Tue, Oct 18, 2011 at 09:52:32AM +0200, Dieter Mummenschanz wrote:
> I've installed your libva patch:
> 
> libva: libva version 0.32.0
> libva: va_getDriverName() returns 0
> libva: Trying to open /usr/local/lib/dri/i965_drv_video.so
> libva: va_openDriver() returns 0
> vainfo: VA API version: 0.32
> vainfo: Driver version: Intel i965 driver - 1.0.15.pre1
> 
> No Changes. With iommu switched off there are less frequent hangs but there still are :-(. dmesg shows:
> 
> WARNING: at drivers/gpu/drm/i915/i915_drv.c:354 gen6_gt_force_wake_get+0x1f/0x3c [i915]()
> Hardware name: 4236NGG
> Modules linked in: snd_hda_codec_conexant fbcon font bitblit softcursor i915 thinkpad_acpi nvram drm_kms_helper drm fb fbdev cfbcopyarea video iwlagn backlight cfbimgblt cfbfillrect e1000e snd_hda_intel snd_hda_codec intel_agp intel_gtt agpgart
> Pid: 0, comm: swapper Not tainted 3.1.0-rc4+ #1
> Call Trace:
>  <IRQ>  [<ffffffff8102fcf2>] ? warn_slowpath_common+0x78/0x8c
>  [<ffffffffa0113fd9>] ? i915_vblank_swap+0x6/0x6 [i915]
>  [<ffffffffa010c484>] ? gen6_gt_force_wake_get+0x1f/0x3c [i915]
>  [<ffffffffa01140e2>] ? i915_hangcheck_elapsed+0x109/0x29a [i915]
>  [<ffffffffa0113fd9>] ? i915_vblank_swap+0x6/0x6 [i915]
>  [<ffffffff81039799>] ? run_timer_softirq+0x195/0x222
>  [<ffffffff8103466f>] ? __do_softirq+0x7f/0x106
>  [<ffffffff813b4f2c>] ? call_softirq+0x1c/0x30
>  [<ffffffff81003396>] ? do_softirq+0x31/0x67
>  [<ffffffff810348a0>] ? irq_exit+0x44/0xa5
>  [<ffffffff81015cdd>] ? smp_apic_timer_interrupt+0x85/0x95
>  [<ffffffff813b468b>] ? apic_timer_interrupt+0x6b/0x70
>  <EOI>  [<ffffffff811d5022>] ? intel_idle+0xcd/0xe9
>  [<ffffffff811d4ffe>] ? intel_idle+0xa9/0xe9
>  [<ffffffff812ae307>] ? cpuidle_idle_call+0xa0/0xdb
>  [<ffffffff81000840>] ? cpu_idle+0x52/0x75
>  [<ffffffff81677b60>] ? start_kernel+0x401/0x40c

We already know about this backtrace. It's a possible sideffect of a
overloaded/dying gpu, but unrelated to the bug at hand.

> In this special case the gpu was successfully reset and continued normally. 
> 
> Any other ideas?

Not at the moment, unfortunately. Can you please report a bug against
libva with a small summary of all the things we've already discussed here?
Also please add a error_state with my patches applied. And don't forget to
put me on cc and post the bug # here in this thread.

Yours, Daniel
-- 
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48

Re: frequent x crashes with gen6/sna

[Daniel Vetter]

On Tue, Oct 18, 2011 at 08:47:04PM +0200, Daniel Vetter wrote:
> On Tue, Oct 18, 2011 at 09:52:32AM +0200, Dieter Mummenschanz wrote:
> > In this special case the gpu was successfully reset and continued normally. 
> > 
> > Any other ideas?
> 
> Not at the moment, unfortunately. Can you please report a bug against
> libva with a small summary of all the things we've already discussed here?
> Also please add a error_state with my patches applied. And don't forget to
> put me on cc and post the bug # here in this thread.

Any update on this? I've got other reports of libva related gpu hangs, but
you seem to be the only one who can grab the error_state ...

Yours, Daniel
-- 
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48