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On 2012-06-02T09:42:32+00:00 Mattst88 wrote:

Created attachment 62426
i915_error_state

kernel commit - 829f51dbd825256197fb2a89705d42ad83f958ef

This started happening sometime after 3.3.

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/0

------------------------------------------------------------------------
On 2012-06-02T09:42:47+00:00 Mattst88 wrote:

Created attachment 62427
dmesg

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/1

------------------------------------------------------------------------
On 2012-06-02T14:09:19+00:00 Chris Wilson wrote:

Hmm, that is worrying. It really does look like it is dropping critical
writes whilst programming the GPU. Any chance that this is bisectable?

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/2

------------------------------------------------------------------------
On 2012-06-04T02:10:32+00:00 Daniel-ffwll wrote:

If you bisect this, please use the i915_error_state dump/full gpu hang
as an indicator - we've added the gtfifo WARN in 3.4. Patches are
67a3744f7515edda988 and ee64cbdbf6170679881 if you're curious.

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/3

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On 2012-06-10T09:47:03+00:00 Mattst88 wrote:

This probably isn't the news you wanted to hear: it seems related to
rc6.

When I boot with i915.i915_enable_rc6=-1 I'll get GPU hangs in when
switching between windows in gnome-shell. When I boot with
i915.i915_enable_rc6=0, I cannot reproduce the hangs.

I tried to bisect between v3.3 and v3.4 and the offending commit was
simply enabling rc6 by default, so I'll have to redo the bisection with
rc6 enabled, but I'm not sure if I've ever had rc6 stable on my system.

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/4

------------------------------------------------------------------------
On 2012-06-15T13:06:05+00:00 Eugeni Dodonov wrote:

Could you please try with the patch from
http://permalink.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/11894
?

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/5

------------------------------------------------------------------------
On 2012-06-16T11:15:21+00:00 Mattst88 wrote:

It does not help. I applied patches 1/2 and 2/2 and gnome-shell still
died the same way. dmesg is the same.

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/6

------------------------------------------------------------------------
On 2012-07-04T11:09:34+00:00 Chris Wilson wrote:

*** Bug 50652 has been marked as a duplicate of this bug. ***

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/9

------------------------------------------------------------------------
On 2012-07-04T11:11:01+00:00 Chris Wilson wrote:

Matt, Lorenz and Emmanuel can we have the full details about your system
and configuration? Hopefully we can source a system and reproduce...

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/10

------------------------------------------------------------------------
On 2012-07-06T11:49:36+00:00 Mattst88 wrote:

(In reply to comment #8)
> Matt, Lorenz and Emmanuel can we have the full details about your system and
> configuration? Hopefully we can source a system and reproduce...

My hardware configuration is
 - 2500K
 - ASRock H67M motherboard (http://www.asrock.com/mb/overview.asp?Model=H67M), 
BIOS 1.50

I don't think I've ever had a configuration where RC6 worked, I just
didn't notice that it was broken because it wasn't on by default.

What else can I provide?

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/11

------------------------------------------------------------------------
On 2012-07-15T16:22:31+00:00 Carthexis wrote:

My hardware:

- Intel Core i7-2600K
- Also an ASRock motherboard, H67M-GE/HT

I noticed that I wrote "HDMI" as my connector type earlier, this is
wrong: My monitor is in fact connected via DisplayPort (whether that
matters or not :) ).

- Monitor: Dell U2711 via DisplayPort, 2560x1440

Anything else you need?

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/12

------------------------------------------------------------------------
On 2012-07-15T17:00:45+00:00 Daniel-ffwll wrote:

Can you please test the latest version of the drm-intel-next-queued
branch, specifically:

commit af7e1ae36b2be174b547f093babe0f8b545898ec
Author: Chris Wilson <[email protected]>
Date:   Sun Jul 15 09:42:38 2012 +0100

    drm/i915: Workaround hang with BSD and forcewake on SandyBridge

Maybe we're lucky in this helps.

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/13

------------------------------------------------------------------------
On 2012-07-15T20:00:25+00:00 Carthexis wrote:

Unfortunately, this didn't cure the problem for me. Interested in
another copy of dmesg, i916_error_state and such? dmesg is still full of

"MMIO read or write has been dropped"

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/14

------------------------------------------------------------------------
On 2012-07-15T20:58:22+00:00 Daniel-ffwll wrote:

> --- Comment #12 from Lorenz Huedepohl <[email protected]> 2012-07-15 
> 20:00:25 PDT ---
> Unfortunately, this didn't cure the problem for me. Interested in another copy
> of dmesg, i916_error_state and such? dmesg is still full of
> 
> "MMIO read or write has been dropped"

No, I don't think anything really is new. Thanks for testing this
anyway.

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/15

------------------------------------------------------------------------
On 2012-07-16T00:24:12+00:00 Mattst88 wrote:

Kenneth suggested to me that this might be related to VT-d, which I'm
not sure if its enabled. The computer is now packed and won't be
unpacked for at least 6 weeks, so I can't check. Others with the same
problem may want to check.

The fact that Lorenz's motherboard is also an ASRock H67M is quite a
coincidence if it's not actually related to the board.

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/16

------------------------------------------------------------------------
On 2012-07-16T08:28:10+00:00 Daniel-ffwll wrote:

Neither DMAR nor IOMMU to be found in the dmesg, so no VT-d.

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/17

------------------------------------------------------------------------
On 2012-08-06T09:30:23+00:00 Daniel-ffwll wrote:

Can you please retest this with latest drm-intel-fixes?

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/18

------------------------------------------------------------------------
On 2012-08-06T16:24:36+00:00 Mattst88 wrote:

(In reply to comment #16)
> Can you please retest this with latest drm-intel-fixes?

I will as soon as I can, but that probably won't be until next month. My
system is packed up for the move to Oregon.

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/19

------------------------------------------------------------------------
On 2012-08-07T20:31:35+00:00 Carthexis wrote:

(In reply to comment #16)
> Can you please retest this with latest drm-intel-fixes?

I'm trying c4aed35 at the moment, it seems to be good so far (uptime 2
hours). I will report back in a few days or in case of trouble.


In dmesg, I get entries like these from time to time:

 5180.774833] ------------[ cut here ]------------
[ 5180.774860] WARNING: at drivers/gpu/drm/i915/i915_drv.c:527 
__gen6_gt_wait_for_fifo+0x96/0xa0 [i915]()
[ 5180.774862] Hardware name: To Be Filled By O.E.M.
[ 5180.774927]  thermal
[ 5180.774928]  thermal_sys
[ 5180.774933] Pid: 2674, comm: Xorg Tainted: G        W    
3.5.0-rc5-32-desktop+ #12
[ 5180.774934] Call Trace:
[ 5180.774944]  [<ffffffff8104140a>] warn_slowpath_common+0x7a/0xb0
[ 5180.774948]  [<ffffffff81041455>] warn_slowpath_null+0x15/0x20
[ 5180.774960]  [<ffffffffa0113cc6>] __gen6_gt_wait_for_fifo+0x96/0xa0 [i915]
[ 5180.774971]  [<ffffffffa0114662>] i915_write32+0x92/0x130 [i915]
[ 5180.774991]  [<ffffffffa0155c7c>] ring_write_tail+0x1c/0x20 [i915]
[ 5180.775008]  [<ffffffffa01574f1>] intel_ring_advance+0x41/0x50 [i915]
[ 5180.775023]  [<ffffffffa0158233>] gen6_render_ring_flush+0xc3/0xd0 [i915]
[ 5180.775036]  [<ffffffffa0125ea9>] i915_gem_flush_ring.part.23+0x39/0x100 
[i915]
[ 5180.775048]  [<ffffffffa0126a64>] i915_gem_flush_ring+0x14/0x20 [i915]
[ 5180.775061]  [<ffffffffa012bec3>] 
i915_gem_execbuffer_move_to_gpu+0x1b3/0x200 [i915]
[ 5180.775074]  [<ffffffffa012ca81>] i915_gem_do_execbuffer.isra.11+0x621/0x970 
[i915]
[ 5180.775086]  [<ffffffffa012d295>] i915_gem_execbuffer2+0x95/0x260 [i915]
[ 5180.775098]  [<ffffffffa00af404>] drm_ioctl+0x444/0x510 [drm]
[ 5180.775103]  [<ffffffff8116245a>] ? do_sync_read+0xca/0x110
[ 5180.775116]  [<ffffffffa012d200>] ? i915_gem_execbuffer+0x430/0x430 [i915]
[ 5180.775121]  [<ffffffff81174215>] do_vfs_ioctl+0x85/0x300
[ 5180.775124]  [<ffffffff81162df8>] ? vfs_read+0x108/0x170
[ 5180.775128]  [<ffffffff81174521>] sys_ioctl+0x91/0xa0
[ 5180.775132]  [<ffffffff815b3779>] system_call_fastpath+0x16/0x1b
[ 5180.775135] ---[ end trace b47a98054c149157 ]---
[ 5180.780250] ------------[ cut here ]------------

However, without an apparent visual effect :)

Kind regards,
  Lorenz

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/20

------------------------------------------------------------------------
On 2012-08-07T21:06:35+00:00 Carthexis wrote:

Sorry, it didn't last that long, it crashed a few minutes after my last
report :(

I attach dmesg, Xorg.log and i915_error_state again, as dmesg shows
different entries then the other times (see comment 18).

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/21

------------------------------------------------------------------------
On 2012-08-07T21:08:15+00:00 Carthexis wrote:

Created attachment 65251
/sys/kernel/debug/dri/0/i915_error_state after crash

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/22

------------------------------------------------------------------------
On 2012-08-07T21:09:00+00:00 Carthexis wrote:

Created attachment 65252
dmesg before crash

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/23

------------------------------------------------------------------------
On 2012-08-07T21:09:25+00:00 Carthexis wrote:

Created attachment 65253
dmesg after crash

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/24

------------------------------------------------------------------------
On 2012-08-07T21:09:49+00:00 Carthexis wrote:

Created attachment 65254
Xorg.0.log

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/25

------------------------------------------------------------------------
On 2012-08-13T17:55:16+00:00 Chris Wilson wrote:

*** Bug 53186 has been marked as a duplicate of this bug. ***

Reply at: https://bugs.launchpad.net/xserver-xorg-video-
intel/+bug/1020733/comments/26


** Changed in: xserver-xorg-video-intel
       Status: Unknown => Incomplete

** Changed in: xserver-xorg-video-intel
   Importance: Unknown => Medium

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Title:
  [sandybridge-m-gt2+] GPU lockup  IPEHR: 0x78170003

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