[Bug 94027] New: [drm] GPU HANG: ecode 7:0:0x85fffff8, in Compositor [13633], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94027

            Bug ID: 94027
           Summary: [drm] GPU HANG: ecode 7:0:0x85fffff8, in Compositor
                    [13633], reason: Ring hung, action: reset
           Product: DRI
           Version: XOrg git
          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: iskatu at posteo.org
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 121559
  --> https://bugs.freedesktop.org/attachment.cgi?id=121559&action=edit
GPU crash dump

Hi,
since updating to Linux 4.4 I'm repeatedly experiencing this bug, but can not
reliably reproduce it. It usually appears in random intervals after using the
computer for a few hours.

dmesg:

[drm] stuck on render ring
[drm] GPU HANG: ecode 7:0:0x85fffff8, in Compositor [13633], reason: Ring hung,
action: reset
[drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including
userspace.
[drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI ->
DRM/Intel
[drm] drm/i915 developers can then reassign to the right component if it's not
a kernel issue.
[drm] The gpu crash dump is required to analyze gpu hangs, so please always
attach it.
[drm] GPU crash dump saved to /sys/class/drm/card0/error
------------[ cut here ]------------
WARNING: CPU: 3 PID: 11587 at drivers/gpu/drm/i915/intel_display.c:11289
intel_mmio_flip_work_func+0x37c/0x3c0()
WARN_ON(__i915_wait_request(mmio_flip->req, mmio_flip->crtc->reset_counter,
false, NULL, &mmio_flip->i915->rps.mmioflips))
Modules linked in:
 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core
v4l2_common videodev x86_pkg_temp_thermal coretemp kvm_intel kvm iwldvm
irqbypass iwlwifi vboxpci(O) vboxnetflt(O) vboxnetadp(O) vboxdrv(O)
l430_fanctrl(O) efivarfs
CPU: 3 PID: 11587 Comm: kworker/3:0 Tainted: G           O    4.4.1-gentoo #2
Hardware name: LENOVO 2464A26/2464A26, BIOS G3ETA5WW(2.65) 10/20/2015
Workqueue: events intel_mmio_flip_work_func
 ffffffff81e538b0 ffff8800a6d57d30 ffffffff814860bf ffff8800a6d57d78
 ffff8800a6d57d68 ffffffff810dd67d ffff8800822a0240 ffff88021f2d4900
 ffff88021f2d9000 00000000000000c0 ffff8800822a0240 ffff8800a6d57dc8
Call Trace:
 [<ffffffff814860bf>] dump_stack+0x44/0x55
 [<ffffffff810dd67d>] warn_slowpath_common+0x7d/0xb0
 [<ffffffff810dd6f7>] warn_slowpath_fmt+0x47/0x50
 [<ffffffff81616e5c>] intel_mmio_flip_work_func+0x37c/0x3c0
 [<ffffffff810f3922>] process_one_work+0x142/0x460
 [<ffffffff810f3c83>] worker_thread+0x43/0x490
 [<ffffffff810f3c40>] ? process_one_work+0x460/0x460
 [<ffffffff810f3c40>] ? process_one_work+0x460/0x460
 [<ffffffff810f8ed4>] kthread+0xc4/0xe0
 [<ffffffff810f8e10>] ? kthread_worker_fn+0x150/0x150
 [<ffffffff81a9325f>] ret_from_fork+0x3f/0x70
 [<ffffffff810f8e10>] ? kthread_worker_fn+0x150/0x150
---[ end trace d9e57444a767c224 ]---
drm/i915: Resetting chip after gpu hang

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