[Bug 80483] New: Getting BUS errors randomly but very often on chromium

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80483

          Priority: medium
            Bug ID: 80483
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: Getting BUS errors randomly but very often on chromium
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: other
          Reporter: grzegorzpawlik at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 101673
  --> https://bugs.freedesktop.org/attachment.cgi?id=101673&action=edit
GPU crash dump

Even after disabling extensions and plugins it happen. From dmesg:

[17683.073152] Watchdog[13047]: segfault at 0 ip 00007fda7b2ee806 sp
00007fda6743a880 error 6 in chromium[7fda776b8000+573c000]
[17687.821490] [drm] stuck on render ring
[17687.822114] [drm] GPU HANG: ecode 0:0x85fffffc, in chromium [13039], reason:
Ring hung, action: reset
[17687.822116] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[17687.822118] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[17687.822119] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[17687.822120] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[17687.822121] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[17689.821695] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
[20657.733779] perf interrupt took too long (2543 > 2495), lowering
kernel.perf_event_max_sample_rate to 50100

In attachment mentioned /sys/class/drm/card0/error card dump. 

I would gladly provide more info, but need hint.

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