Date:	Sat, 16 Apr 2011 14:52:49 +0200
From:	wzab <wzab@....pw.edu.pl>
To:	linux-kernel@...r.kernel.org
CC:	Chris Wilson <chris@...is-wilson.co.uk>, wzab@....pw.edu.pl,
	Bruno Prémont <bonbons@...ux-vserver.org>
Subject: Re: i915 drm GPU hung errors with kernel 2.6.38.2 on  82865G chipset

Ooops, it seems, that my previous message with uncompressed logs was a 
little too big.
I'm resending it with compressed logs, even though they will be probably 
discarded in the archive as "unhandled content"

WZab

W dniu 16.04.2011 08:07, Chris Wilson pisze:
> On Fri, 15 Apr 2011 23:07:51 +0200, wzab<wzab@....pw.edu.pl>  wrote:
>> Today I have experienced two "GPU hungs" on machine with 82865G chipset
>> working with 2.6.38.2 kernel
>> In the /var/log/syslog I have found the following errors:
>>
>> Apr 15 22:50:51 wzab kernel: [drm:i915_hangcheck_elapsed] *ERROR*
>> Hangcheck timer elapsed... GPU hung
>
> As Bruno said there is a /sys/kernel/debug/dri/0/i915_error_state file
> that contains a GPU dump at the time of the error which often contains the
> vital clue at to what went wrong. If you can also think back to what was
> happening on the machine at the time of the hang, that can also help
> identify the trigger and the suspect code.
>
> Thanks,
> -Chris
>
Hi,

After I've switched on debugging (booted with drm.debug=0x06 and mounted 
"sudo mount -t debugfs debugfs /sys/kernel/debug" the probability of the 
error decreased.
However after 2 hours or work it happened again.
There was nothing specific performed on the machine.
OK. This time I had the iceweasel window in the background, and was 
running an application under wine emulator, but previously
the same problem occured when I had only two gnome-terminals opened and 
iceweasel.
The problem may be associated with switching of active window in X or 
with switching of active tab in iceweasel (i.e. with activity related to 
massive change of displayed contents).
I attach the output of the i915_error_state.txt, the log of X server.
Sorry for big uncompressed files, but when I compressed them previously, 
I saw that they were ignored by archive website as "unhandled content".
Below follows information requested on 
http://intellinuxgraphics.org/how_to_report_bug.html

output of "uname -m": i686

output of "uname -a":
Linux wzab 2.6.38.2 #1 SMP PREEMPT Fri Apr 8 18:37:23 CEST 2011 i686 
GNU/Linux

info about chipset (from lspci):
00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM 
Controller/Host-Hub Interface (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82865G Integrated 
Graphics Controller (rev 02)
00:03.0 PCI bridge: Intel Corporation 82865G/PE/P PCI to CSA Bridge (rev 02)
00:06.0 System peripheral: Intel Corporation 82865G/PE/P Processor to 
I/O Memory Interface (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB 
UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB 
UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB 
UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB 
UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 
EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC 
Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE 
Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller 
(rev 02)
00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus 
Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER 
(ICH5/ICH5R) AC'97 Audio Controller (rev 02)
01:01.0 Ethernet controller: Intel Corporation 82547EI Gigabit Ethernet 
Controller

Version of libdrm2:
Package: libdrm2
Priority: optional
Section: libs
Installed-Size: 500
Maintainer: Debian X Strike Force <debian-x@...ts.debian.org>
Architecture: i386
Source: libdrm
Version: 2.4.23-3
Depends: libc6 (>= 2.7)
Filename: pool/main/libd/libdrm/libdrm2_2.4.23-3_i386.deb
Size: 421754
MD5sum: e175512785e1db00a09a4ed2063acbeb
SHA1: 1f010300dd200d4a70337f190ecc6848e653bece
SHA256: 2735ec5fbbcad7c48c34308702aa8867c8aa0ae26c5f1be52dadb431f1355c08

I was not able to send the glxinfo, as after login via ssh to the hung 
machine and running "DISPLAY=:0 glxinfo" the command hung and didn't 
display anything.

I have also attached the output of "intel_gpu_dump" command.
-- 
HTH & Regards,
Wojtek Zabolotny








Download attachment "dmesg.txt.gz" of type "application/x-gzip" (929 bytes)

Download attachment "i915_error_state.txt.gz" of type "application/x-gzip" (111686 bytes)

Download attachment "intel_gpu_dump.txt.gz" of type "application/x-gzip" (136884 bytes)

Download attachment "Xorg.0.log.gz" of type "application/x-gzip" (9847 bytes)

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