[Bug 107178] New: ecode 9:0:0x85dffffb, in gnome-shell [2235], reason: Hang on rcs0, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107178

            Bug ID: 107178
           Summary: ecode 9:0:0x85dffffb, in gnome-shell [2235], reason:
                    Hang on rcs0, action: reset
           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: nilisco at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 140539
  --> https://bugs.freedesktop.org/attachment.cgi?id=140539&action=edit
crash dump.

I'm getting random GPU hangs as well as display corruption (random parts of the
screen will show tearing/lines with various colors) quite often. It's very hard
to accurately reproduce, but happens pretty consistently when scrolling in
Firefox or typing in vim in a terminal.

Running Fedora 28 x86_64 on 4.17.3-200.fc28.x86_64. I'm using a skylake Lenovo
p50 with hdmi hooked up to an external 1080p monitor.

Here's the dmesg dump. I get a crash log for the first one. Later ones just
show the "Resetting rcs0" message.

[ 4732.361391] [drm] GPU HANG: ecode 9:0:0x85dffffb, in gnome-shell [2235],
reason: Hang on rcs0, action: reset
[ 4732.361392] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 4732.361393] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 4732.361393] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 4732.361393] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 4732.361394] [drm] GPU crash dump saved to /sys/class/drm/card1/error
[ 4732.361426] i915 0000:00:02.0: Resetting rcs0 after gpu hang
[ 4767.361084] i915 0000:00:02.0: Resetting rcs0 after gpu hang
[ 4846.337555] i915 0000:00:02.0: Resetting rcs0 after gpu hang
[ 4885.313770] i915 0000:00:02.0: Resetting rcs0 after gpu hang
[ 4960.322208] i915 0000:00:02.0: Resetting rcs0 after gpu hang

Crash dump attached.

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