[Bug 91458] New: stuck on render ring (GPU HANG: ecode 8:0:0x85dffffb)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91458

            Bug ID: 91458
           Summary: stuck on render ring (GPU HANG: ecode 8:0:0x85dffffb)
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: All
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: matthias.h.nagel at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Might be the same as bug #91452, but in my case the crash does not occur
randomly but reliably after at most 10min.

dmesg:

[  764.492100] [drm] stuck on render ring
[  764.493303] [drm] GPU HANG: ecode 8:0:0x85dffffb, in X [2336], reason: Ring
hung, action: reset
[  764.493307] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  764.493310] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  764.493312] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  764.493315] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[  764.493318] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  764.493490] ------------[ cut here ]------------
[  764.493501] WARNING: CPU: 0 PID: 6946 at
drivers/gpu/drm/i915/intel_display.c:9603
intel_mmio_flip_work_func+0x58/0x2db()
[  764.493504] WARN_ON(__i915_wait_request(mmio_flip->req, crtc->reset_counter,
false, NULL, NULL) != 0)
[  764.493506] Modules linked in:
[  764.493509]  iTCO_wdt iTCO_vendor_support lpc_ich btusb x86_pkg_temp_thermal
mfd_core coretemp iwlmvm uvcvideo videobuf2_vmalloc videobuf2_memops iwlwifi
videobuf2_core efivarfs
[  764.493528] CPU: 0 PID: 6946 Comm: kworker/0:2 Not tainted 4.0.5-gentoo #4
[  764.493531] Hardware name: LENOVO 20BTS08N00/20BTS08N00, BIOS N14ET26W (1.04
) 01/23/2015
[  764.493537] Workqueue: events intel_mmio_flip_work_func
[  764.493540]  0000000000000009 ffff8801b452fce8 ffffffff8171454b
00000000000000f3
[  764.493545]  ffff8801b452fd38 ffff8801b452fd28 ffffffff810af085
ffff880241f1bf80
[  764.493550]  ffffffff813d08b6 ffff880243a118b0 ffff88024dc11d40
ffff88024dc16100
[  764.493555] Call Trace:
[  764.493564]  [<ffffffff8171454b>] dump_stack+0x45/0x57
[  764.493570]  [<ffffffff810af085>] warn_slowpath_common+0x97/0xb1
[  764.493575]  [<ffffffff813d08b6>] ? intel_mmio_flip_work_func+0x58/0x2db
[  764.493580]  [<ffffffff810af0e0>] warn_slowpath_fmt+0x41/0x43
[  764.493586]  [<ffffffff813d08b6>] intel_mmio_flip_work_func+0x58/0x2db
[  764.493591]  [<ffffffff810c7193>] ? dequeue_task+0x5e/0x65
[  764.493597]  [<ffffffff810bf4db>] process_one_work+0x19f/0x2b5
[  764.493602]  [<ffffffff810bfcc0>] worker_thread+0x258/0x34a
[  764.493608]  [<ffffffff810bfa68>] ? cancel_delayed_work_sync+0x10/0x10
[  764.493613]  [<ffffffff810c3838>] kthread+0xcd/0xd5
[  764.493619]  [<ffffffff810c376b>] ? kthread_create_on_node+0x16c/0x16c
[  764.493635]  [<ffffffff8171b148>] ret_from_fork+0x58/0x90
[  764.493640]  [<ffffffff810c376b>] ? kthread_create_on_node+0x16c/0x16c
[  764.493652] ---[ end trace edc274914fa5dbed ]---
[  764.497010] drm/i915: Resetting chip after gpu hang
[  764.499026] dmar: DRHD: handling fault status reg 2
[  764.499036] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr
18caf000 
DMAR:[fault reason 23] Unknown
[  764.608106] dmar: DRHD: handling fault status reg 2
[  764.608117] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr
18d15000 
DMAR:[fault reason 23] Unknown
[  770.495674] [drm] stuck on render ring
[  770.495681] [drm] stuck on blitter ring
[  770.496950] [drm] GPU HANG: ecode 8:0:0x86dffffd, in X [2336], reason: Ring
hung, action: reset
[  770.497043] [drm:i915_context_is_banned] *ERROR* gpu hanging too fast,
banning!
[  770.498661] drm/i915: Resetting chip after gpu hang
[  774.798652] dmar: DRHD: handling fault status reg 2
[  774.798659] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr
a294000 
DMAR:[fault reason 23] Unknown
[  774.798851] dmar: DRHD: handling fault status reg 2
[  774.798855] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr
a294000 
DMAR:[fault reason 23] Unknown
[  780.505674] [drm] stuck on render ring
[  780.506825] [drm] GPU HANG: ecode 8:0:0x00dfffff, in kwin [2472], reason:
Ring hung, action: reset
[  780.509667] drm/i915: Resetting chip after gpu hang
[  780.519402] dmar: DRHD: handling fault status reg 3
[  780.519412] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr
a294000 
DMAR:[fault reason 23] Unknown
[  786.511690] [drm] stuck on render ring
[  786.512923] [drm] GPU HANG: ecode 8:0:0x00dfffff, in kwin [2472], reason:
Ring hung, action: reset
[  786.514674] drm/i915: Resetting chip after gpu hang

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