[Bug 110277] New: GPU hang ecode 9:0:0x84dfbefc

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110277

            Bug ID: 110277
           Summary: GPU hang ecode 9:0:0x84dfbefc
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: bugtracker at othram.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 143802
  --> https://bugs.freedesktop.org/attachment.cgi?id=143802&action=edit
output of lspci -vvn and /sys/class/drm/card0/error

First bug report in a loooong time, so please forgive any novice mistakes.
About once a week or so I will receive the following log entries:

18.586285] [drm] GPU HANG: ecode 9:0:0x84dfbefc, in Xorg [4800], reason: Hang
on render ring, action: reset
Mar 28 10:37:35 ispy kernel: [151918.586288] [drm] GPU hangs can indicate a bug
anywhere in the entire gfx stack, including userspace.
Mar 28 10:37:35 ispy kernel: [151918.586289] [drm] Please file a _new_ bug
report on bugs.freedesktop.org against DRI -> DRM/Intel
Mar 28 10:37:35 ispy kernel: [151918.586290] [drm] drm/i915 developers can then
reassign to the right component if it's not a kernel issue.
Mar 28 10:37:35 ispy kernel: [151918.586292] [drm] The gpu crash dump is
required to analyze gpu hangs, so please always attach it.
Mar 28 10:37:35 ispy kernel: [151918.586293] [drm] GPU crash dump saved to
/sys/class/drm/card0/error
Mar 28 10:37:35 ispy kernel: [151918.586361] drm/i915: Resetting chip after gpu
hang
Mar 28 10:37:47 ispy kernel: [151930.617861] drm/i915: Resetting chip after gpu
hang

The only consistent action that I can correlate is this always happens after
engaging xscreensaver. It does not appear to be related to a particular
screensaver though (I have my system set to pick a random one every time). I
have never caught it in the act. My first clue is returning to the system to
find that my session has been logged out and I am presented with the login
screen. My system is a Librem 15, V3. Additional information:

# uname -a
Linux mybox 4.9.0-8-amd64 #1 SMP Debian 4.9.144-3.1 (2019-02-19) x86_64
GNU/Linux

# cat /etc/debian_version 
9

# cat /etc/os-release
PRETTY_NAME="Devuan GNU/Linux ascii"
NAME="Devuan GNU/Linux"
ID=devuan
ID_LIKE=debian
HOME_URL="https://www.devuan.org/"
SUPPORT_URL="https://devuan.org/os/community"
BUG_REPORT_URL="https://bugs.devuan.org/"


contents of lspci -vvn attached, as is /sys/class/drm/card0/error. I will be
happy to provide any additional requested information.

KR
Patrick Krepps

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