Bug 100642 - [drm] GPU HANG: ecode 9:0:0x84dffff8
Summary: [drm] GPU HANG: ecode 9:0:0x84dffff8
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-04-10 13:00 UTC by Malte Röntgen
Modified: 2017-04-11 18:41 UTC (History)
1 user (show)

See Also:
i915 platform: SKL
i915 features: GPU hang


Attachments
GPU crash dump from /sys/class/drm/card0/error (25.12 KB, text/plain)
2017-04-10 13:00 UTC, Malte Röntgen
no flags Details

Description Malte Röntgen 2017-04-10 13:00:50 UTC
Created attachment 130775 [details]
GPU crash dump from /sys/class/drm/card0/error

I get these hangs whilst working with Mathematica. After the hangs, the system is nearly unusuble due to a high CPU-consumption of the Xorg process. 

MESA version: 17.0.2
Kernel 4.10.1-041001-generic 

Dmesg Output: 
[ 1732.172875] [drm] GPU HANG: ecode 9:0:0x84dffff8, in Xorg [1205], reason: Hang on render ring, action: reset
[ 1732.172876] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
[ 1732.172876] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
[ 1732.172877] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
[ 1732.172877] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
[ 1732.172877] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 1732.172924] drm/i915: Resetting chip after gpu hang
[ 1732.173005] [drm] RC6 on
[ 1732.185714] [drm] GuC firmware load skipped
[ 2936.163337] drm/i915: Resetting chip after gpu hang
[ 2936.163413] [drm] RC6 on
[ 2936.179165] [drm] GuC firmware load skipped
[ 2948.131258] drm/i915: Resetting chip after gpu hang
[ 2948.131339] [drm] RC6 on
[ 2948.145452] [drm] GuC firmware load skipped
Comment 1 Chris Wilson 2017-04-10 13:12:50 UTC
commit 4acd4a7d3d2f41227022fa7581cfb85a0b124eae
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Mon Dec 5 15:13:24 2016 +0000

    sna/gen9: Emit a dummy primitive between VertexElements
    
    References: https://bugs.freedesktop.org/show_bug.cgi?id=98999
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>


As to high CPU usage, use "perf top" to see what is taking most of the time.
Comment 2 Malte Röntgen 2017-04-11 16:14:25 UTC
After updating to the newest driver (for Ubuntu users: https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers), the hangs have resolved. Thanks for your help!


Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.