[Bug 105169] New: GPU HANG: ecode 9:0:0x85df3cff caused by Mesa 17.3.4-1 (debian)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105169

            Bug ID: 105169
           Summary: GPU HANG: ecode 9:0:0x85df3cff caused by Mesa 17.3.4-1
                    (debian)
           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: tytso at mit.edu
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 137449
  --> https://bugs.freedesktop.org/attachment.cgi?id=137449&action=edit
Contents of /sys/class/drm/card0/error

Kernel: 4.14.0-3-amd64 (debian) as well as 4.15.3+ext4 patches
Distribution: Debian testing
Hardware: 2018 XPS 13 (model 9370) with 4k display
Display connector: DisplayPort

Reproduced by: upgrading to the latest Mesa packages in Debian testing
(17.3.4-1), and then starting emacs-x11.   Reverting to Mesa packages version
17.3.3-1 makes the problem go away.  J'accuse, libmesa!

Mesa packages involved (debian names):

libegl1-mesa_17.3.4-1_amd64.deb
libegl-mesa0_17.3.4-1_amd64.deb
libgbm1_17.3.4-1_amd64.deb
libgl1-mesa-dri_17.3.4-1_amd64.deb
libgl1-mesa-glx_17.3.4-1_amd64.deb
libglapi-mesa_17.3.4-1_amd64.deb
libglx-mesa0_17.3.4-1_amd64.deb
libwayland-egl1-mesa_17.3.4-1_amd64.deb
mesa-va-drivers_17.3.4-1_amd64.deb
mesa-vdpau-drivers_17.3.4-1_amd64.deb

Dmesg:

Feb 19 14:07:00 cwcc kernel: [ 1740.829003] [drm] GPU HANG: ecode
9:0:0x85df3cff, in Xorg [1098], reason: Hang on rcs0, action: reset
Feb 19 14:07:00 cwcc kernel: [ 1740.829111] [drm] GPU hangs can indicate a bug
anywhere in the entire gfx stack, including userspace.
Feb 19 14:07:00 cwcc kernel: [ 1740.829112] [drm] Please file a _new_ bug
report on bugs.freedesktop.org against DRI -> DRM/Intel
Feb 19 14:07:00 cwcc kernel: [ 1740.829113] [drm] drm/i915 developers can then
reassign to the right component if it's not a kernel issue.
Feb 19 14:07:00 cwcc kernel: [ 1740.829114] [drm] The gpu crash dump is
required to analyze gpu hangs, so please always attach it.
Feb 19 14:07:00 cwcc kernel: [ 1740.829115] [drm] GPU crash dump saved to
/sys/class/drm/card0/error
Feb 19 14:07:00 cwcc kernel: [ 1740.829123] i915 0000:00:02.0: Resetting rcs0
after gpu hang
Feb 19 14:07:08 cwcc kernel: [ 1748.819899] i915 0000:00:02.0: Resetting rcs0
after gpu hang

Note: also filed as Debian bug #890866

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