[Bug 107921] New: [drm] GPU HANG: ecode 8:0:0x86dffffd, in Xorg [1324], reason: hang on rcs0, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107921

            Bug ID: 107921
           Summary: [drm] GPU HANG: ecode 8:0:0x86dffffd, in Xorg [1324],
                    reason: hang on rcs0, action: reset
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: niko.pavlinek at tuta.io
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 141543
  --> https://bugs.freedesktop.org/attachment.cgi?id=141543&action=edit
crash dump with mesa-18.1.7

Bug description:

The bug causes the display to freeze either temporarily or permanently (reboot
necessary). If it freezes only temporarily, graphical glitches occur (blank
windows, black rectangles, ...).

System environment:
-- chipset:

00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller
(rev 03)
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI
Controller #1 (rev 03)
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio
Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1
(rev e3)
00:1c.2 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #3
(rev e3)
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4
(rev e3)
00:1c.4 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #5
(rev e3)
00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI Controller
(rev 03)
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA Controller
[AHCI Mode] (rev 03)
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
06:00.0 Network controller: Intel Corporation Wireless 3160 (rev 83)
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI
Express Fast Ethernet controller (rev 07)

-- system architecture: 64-bit
-- xf86-video-intel: 2.99.917.831_3
-- xserver: 1.20.1_7
-- mesa: 18.2.0_1
-- libdrm: 2.4.94_1
-- kernel: 4.18.7_2
-- Linux distribution: Void Linux
-- Machine or mobo model: Dell Inspiron 5558 / Dell 08V6CK
-- Display connector:

Reproducing steps:

This seems to be very random. Sometimes it'll happen when nothing is happening
on the system, other times when watching a video. I haven't been able to figure
out how to reproduce it consistently.

Additional info:

I've attached two crash dumps (one with mesa-18.1.7, the other with
mesa-18.2.0) and a system log of when the bug appears.

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