[Bug 98860] New: [SKL] [drm] stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98860

            Bug ID: 98860
           Summary: [SKL] [drm] stuck on render ring
           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: jehtorosun at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 128197
  --> https://bugs.freedesktop.org/attachment.cgi?id=128197&action=edit
(/sys/class/drm/card0/error) attached

Hello everyone, this is my first bug report so I hope I am doing this right. I
have cut the applicable information from dmesg below, and attached
/sys/class/drm/card0/error

[  219.706309] ------------[ cut here ]------------
[  219.706316] WARNING: CPU: 3 PID: 20 at
drivers/gpu/drm/i915/intel_display.c:11313
intel_mmio_flip_work_func+0x378/0x3c0()
[  219.706318] WARN_ON(__i915_wait_request(mmio_flip->req,
mmio_flip->crtc->reset_counter, false, NULL, &mmio_flip->i915->rps.mmioflips))
[  219.706319] Modules linked in:
[  219.706321]  uvcvideo x86_pkg_temp_thermal videobuf2_vmalloc
videobuf2_memops videobuf2_v4l2 videobuf2_core ath10k_pci
[  219.706328] CPU: 3 PID: 20 Comm: kworker/3:0 Not tainted 4.4.26-gentoo #16
[  219.706329] Hardware name: ASUSTeK COMPUTER INC. X556UAM/X556UAM, BIOS
X556UAM.305 07/06/2016
[  219.706332] Workqueue: events intel_mmio_flip_work_func
[  219.706334]  0000000000000000 ffff880169453d30 ffffffff812fed18
ffff880169453d78
[  219.706338]  ffffffff81c09480 ffff880169453d68 ffffffff8104f441
ffff8801691afc80
[  219.706341]  ffff88016ed94c40 00000000000000c0 ffff88016ed99400
ffff8801691afc80
[  219.706343] Call Trace:
[  219.706348]  [<ffffffff812fed18>] dump_stack+0x4d/0x65
[  219.706352]  [<ffffffff8104f441>] warn_slowpath_common+0x81/0xc0
[  219.706355]  [<ffffffff8104f4c7>] warn_slowpath_fmt+0x47/0x50
[  219.706358]  [<ffffffff8100dfab>] ? __switch_to_xtra+0x11b/0x120
[  219.706360]  [<ffffffff8146b598>] intel_mmio_flip_work_func+0x378/0x3c0
[  219.706364]  [<ffffffff81065308>] process_one_work+0x148/0x400
[  219.706366]  [<ffffffff810658d6>] worker_thread+0x46/0x440
[  219.706369]  [<ffffffff81065890>] ? rescuer_thread+0x2d0/0x2d0
[  219.706372]  [<ffffffff8106a3e4>] kthread+0xc4/0xe0
[  219.706374]  [<ffffffff8106a320>] ? kthread_park+0x50/0x50
[  219.706377]  [<ffffffff8181b45f>] ret_from_fork+0x3f/0x70
[  219.706379]  [<ffffffff8106a320>] ? kthread_park+0x50/0x50
[  219.706381] ---[ end trace 1d9ac7d9dd76653c ]---
[  219.708014] drm/i915: Resetting chip after gpu hang
[  221.706203] [drm] RC6 on

I occasionally encounter freezing while using various applications in x11. I am
able to reproduce the freeze 100 percent of the time while using Firefox and
visiting https://distrowatch.com/search.php

After scrolling through the page the gpu will hang in about 1-2 seconds of
scrolling. This is not the only instance of the gpu freezing, however it is the
only instance I can reproduce on demand.

(Linux ASUS-F556U 4.4.26-gentoo #16 SMP Fri Nov 25 18:41:43 EST 2016 x86_64
Intel(R) Core(TM) i3-6100U CPU @ 2.30GHz GenuineIntel GNU/Linux)

I hope this information helps.

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