[Bug 100680] New: X sometimes hangs, sometimes produces strange artifacts

Fri Apr 14 03:02:31 UTC 2017

https://bugs.freedesktop.org/show_bug.cgi?id=100680

            Bug ID: 100680
           Summary: X sometimes hangs, sometimes produces strange
                    artifacts
           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: cmalchik at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 130838
  --> https://bugs.freedesktop.org/attachment.cgi?id=130838&action=edit
from /sys/class/drm/card0/error

This happens unpredictably - sometimes I have a few hours of smooth usage and
sometimes X freezes up after just a minute or so. Usually freezing is preceded
by a few seconds of jitters or strange artifacts on my terminal. Sometimes the
freezing/unresponsiveness returns to normal after a few seconds, and sometimes
it freezes indefinitely, or at least until I lose patience and reboot.

The last time this happened I got some jitters and the screen froze, but
returned to normal after a few seconds. Here are the last few lines of dmesg,
which prompted me to submit this bug:

[ 1598.035647] DMAR: DRHD: handling fault status reg 2
[ 1598.035661] DMAR: [DMA Write] Request device [00:02.0] fault addr ff829000
[fault reason 23] Unknown
[ 1608.787489] [drm] GPU HANG: ecode 8:0:0x86dffffd, in Xorg [978], reason:
Hang on render ring, action: reset
[ 1608.787491] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 1608.787491] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 1608.787492] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 1608.787492] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 1608.787493] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 1608.787542] drm/i915: Resetting chip after gpu hang
[ 1640.588633] DMAR: DRHD: handling fault status reg 3
[ 1640.588637] DMAR: [DMA Write] Request device [00:02.0] fault addr ff829000
[fault reason 23] Unknown
[ 1640.588640] DMAR: DRHD: handling fault status reg 2
[ 1640.588642] DMAR: [DMA Write] Request device [00:02.0] fault addr ff832000
[fault reason 23] Unknown
[ 1640.588647] DMAR: DRHD: handling fault status reg 2
[ 1640.588649] DMAR: [DMA Write] Request device [00:02.0] fault addr ff835000
[fault reason 23] Unknown
[ 1640.588650] DMAR: [DMA Write] Request device [00:02.0] fault addr ff836000
[fault reason 23] Unknown
[ 1640.588655] DMAR: DRHD: handling fault status reg 3
[ 1640.588656] DMAR: [DMA Write] Request device [00:02.0] fault addr ff838000
[fault reason 23] Unknown
[ 1640.588660] DMAR: DRHD: handling fault status reg 2
[ 1640.588662] DMAR: [DMA Write] Request device [00:02.0] fault addr ff83b000
[fault reason 23] Unknown
[ 1640.588672] DMAR: DRHD: handling fault status reg 3
[ 1640.588674] DMAR: [DMA Write] Request device [00:02.0] fault addr ff87f000
[fault reason 23] Unknown
[ 1640.588684] DMAR: DRHD: handling fault status reg 3
[ 1640.588685] DMAR: [DMA Write] Request device [00:02.0] fault addr ff881000
[fault reason 23] Unknown
[ 1640.588689] DMAR: DRHD: handling fault status reg 2
[ 1640.588690] DMAR: [DMA Write] Request device [00:02.0] fault addr ff884000
[fault reason 23] Unknown
[ 1640.588693] DMAR: DRHD: handling fault status reg 2
[ 1640.588694] DMAR: [DMA Write] Request device [00:02.0] fault addr ff885000
[fault reason 23] Unknown
[ 1659.761304] drm/i915: Resetting chip after gpu hang
[ 1659.761464] dmar_fault: 76 callbacks suppressed
[ 1659.761467] DMAR: DRHD: handling fault status reg 3
[ 1659.761480] DMAR: [DMA Write] Request device [00:02.0] fault addr ff85e000
[fault reason 23] Unknown
[ 1659.761652] DMAR: DRHD: handling fault status reg 2
[ 1659.761660] DMAR: [DMA Write] Request device [00:02.0] fault addr ff85e000
[fault reason 23] Unknown
[ 1659.763325] DMAR: DRHD: handling fault status reg 3
[ 1659.763336] DMAR: [DMA Write] Request device [00:02.0] fault addr ff85e000
[fault reason 23] Unknown
[ 1659.763645] DMAR: DRHD: handling fault status reg 2
[ 1659.763654] DMAR: [DMA Write] Request device [00:02.0] fault addr ff85e000
[fault reason 23] Unknown
[ 1659.764067] DMAR: DRHD: handling fault status reg 3
[ 1659.764076] DMAR: [DMA Write] Request device [00:02.0] fault addr ff829000
[fault reason 23] Unknown
[ 1659.764630] DMAR: DRHD: handling fault status reg 2
[ 1659.764640] DMAR: [DMA Write] Request device [00:02.0] fault addr ff829000
[fault reason 23] Unknown
[ 1659.764647] DMAR: [DMA Write] Request device [00:02.0] fault addr ff82a000
[fault reason 23] Unknown
[ 1659.764698] DMAR: DRHD: handling fault status reg 2
[ 1659.764705] DMAR: [DMA Write] Request device [00:02.0] fault addr ff82a000
[fault reason 23] Unknown
[ 1659.765415] DMAR: DRHD: handling fault status reg 2
[ 1659.765424] DMAR: [DMA Write] Request device [00:02.0] fault addr ff82a000
[fault reason 23] Unknown
[ 1659.765431] DMAR: [DMA Write] Request device [00:02.0] fault addr ff82b000
[fault reason 23] Unknown
[ 1677.745357] drm/i915: Resetting chip after gpu hang
[ 1677.760715] dmar_fault: 248 callbacks suppressed
[ 1677.760716] DMAR: DRHD: handling fault status reg 3
[ 1677.760720] DMAR: [DMA Write] Request device [00:02.0] fault addr ff829000
[fault reason 23] Unknown
[ 1677.760724] DMAR: DRHD: handling fault status reg 2
[ 1677.760727] DMAR: [DMA Write] Request device [00:02.0] fault addr ff832000
[fault reason 23] Unknown
[ 1677.760731] DMAR: DRHD: handling fault status reg 2
[ 1677.760733] DMAR: [DMA Write] Request device [00:02.0] fault addr ff836000
[fault reason 23] Unknown
[ 1677.760736] DMAR: DRHD: handling fault status reg 3
[ 1677.760738] DMAR: [DMA Write] Request device [00:02.0] fault addr ff83a000
[fault reason 23] Unknown
[ 1677.760742] DMAR: DRHD: handling fault status reg 3
[ 1677.760745] DMAR: [DMA Write] Request device [00:02.0] fault addr ff83f000
[fault reason 23] Unknown
[ 1677.760748] DMAR: DRHD: handling fault status reg 2
[ 1677.760750] DMAR: [DMA Write] Request device [00:02.0] fault addr ff843000
[fault reason 23] Unknown
[ 1677.760752] DMAR: DRHD: handling fault status reg 2
[ 1677.760755] DMAR: [DMA Write] Request device [00:02.0] fault addr ff847000
[fault reason 23] Unknown
[ 1677.760757] DMAR: DRHD: handling fault status reg 3
[ 1677.760759] DMAR: [DMA Write] Request device [00:02.0] fault addr ff84a000
[fault reason 23] Unknown
[ 1677.760763] DMAR: DRHD: handling fault status reg 2
[ 1677.760765] DMAR: [DMA Write] Request device [00:02.0] fault addr ff84e000
[fault reason 23] Unknown
[ 1677.760768] DMAR: DRHD: handling fault status reg 2
[ 1677.760771] DMAR: [DMA Write] Request device [00:02.0] fault addr ff852000
[fault reason 23] Unknown
[ 1689.713436] drm/i915: Resetting chip after gpu hang

Some more info:

$ uname -a
Linux myvoidlinuxbox 4.10.10_1 #1 SMP PREEMPT Thu Apr 13 14:00:02 UTC 2017
x86_64 GNU/Linux
$ lspci
00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Iris Graphics 6100 (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)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection (3) I218-V
(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.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4
(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)
02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59)
$

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