Bug 106421 - [gm45] Stray GPU writes
Summary: [gm45] Stray GPU writes
Status: NEW
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/i965 (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Intel 3D Bugs Mailing List
QA Contact: Intel 3D Bugs Mailing List
Depends on:
Reported: 2018-05-06 16:05 UTC by pistenflitzer
Modified: 2018-05-07 16:17 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

/sys/class/drm/card0/error (40.40 KB, text/plain)
2018-05-06 16:05 UTC, pistenflitzer

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Description pistenflitzer 2018-05-06 16:05:55 UTC
Created attachment 139395 [details]

I just started "git gui", when the notebook froze for a few seconds. Afterwards, I could access most running applications, but chrome only rendered the tab bar, and plasmashell would not start again.

I had only just updated the KDE libraries from 5.44.0 to 5.45.0 when this happened. Not sure if this is related.

from dmesg:
[ 6202.821326] [drm] GPU HANG: ecode 4:0:0xefdcfff7, in chrome [2583], reason: Hang on rcs0, action: reset
[ 6202.821327] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
[ 6202.821328] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
[ 6202.821329] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
[ 6202.821329] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
[ 6202.821330] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 6202.821370] i915 0000:00:02.0: Resetting chip after gpu hang
[ 6207.968047] i915 0000:00:02.0: i915_reset_device timed out, cancelling all in-flight rendering.
[ 6212.288101] i915 0000:00:02.0: Failed to reset chip
Comment 1 Denis 2018-05-07 15:58:55 UTC
Hello. Could you please provide more information about your software?
glxinfo -B with mesa version would be great. Right now there are about 5 tickets about GPU hangs in kde plasmashell on different distributives, so maybe it is one issue...
Comment 2 pistenflitzer 2018-05-07 16:17:12 UTC
Please let me know if you need more information.

$ glxinfo -B
name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Intel Open Source Technology Center (0x8086)
    Device: Mesa DRI Mobile Intel® GM45 Express Chipset  (0x2a42)
    Version: 18.0.2
    Accelerated: yes
    Video memory: 1536MB
    Unified memory: yes
    Preferred profile: compat (0x2)
    Max core profile version: 0.0
    Max compat profile version: 2.1
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 2.0
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Mobile Intel® GM45 Express Chipset
OpenGL version string: 2.1 Mesa 18.0.2
OpenGL shading language version string: 1.20

OpenGL ES profile version string: OpenGL ES 2.0 Mesa 18.0.2
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16

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