[Bug 94033] New: GPU Hang: ecode 7:0:0x85dffffc, stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94033

            Bug ID: 94033
           Summary: GPU Hang: ecode 7:0:0x85dffffc, stuck on render ring
           Product: DRI
           Version: unspecified
          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: alleonof at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 121566
  --> https://bugs.freedesktop.org/attachment.cgi?id=121566&action=edit
dmesg

Graphics  freeze up multiple times per day:


[   11.701071] [drm] stuck on render ring
[   11.702236] [drm] GPU HANG: ecode 7:0:0x85dffffc, in kwin_x11 [367], reason:
Ring hung, action: reset
[   11.702239] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[   11.702241] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[   11.702243] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[   11.702245] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[   11.702247] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[   11.702277] [drm:i915_reset_and_wakeup] resetting chip
[   11.702363] ------------[ cut here ]------------
[   11.702374] WARNING: CPU: 1 PID: 122 at
drivers/gpu/drm/i915/intel_display.c:11289
intel_mmio_flip_work_func+0x35f/0x3a0()
[   11.702377] WARN_ON(__i915_wait_request(mmio_flip->req,
mmio_flip->crtc->reset_counter, false, NULL, &mmio_flip->i915->rps.mmioflips))
[   11.702381] Modules linked in:
[   11.702384]  nct6775 hwmon_vid snd_virtuoso intel_powerclamp snd_oxygen_lib
efivars coretemp snd_mpu401_uart snd_pcm snd_timer sr_mod snd_rawmidi cdrom
lpc_ich mfd_core efivarfs ipv6
[   11.702405] CPU: 1 PID: 122 Comm: kworker/1:3 Not tainted 4.4.0 #2
[   11.702408] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./B85M, BIOS P2.60 12/17/2015
[   11.702414] Workqueue: events intel_mmio_flip_work_func
[   11.702417]  ffffffff81611fc8 ffffffff811f72ee ffff8800cac73d90
ffffffff81040513
[   11.702423]  ffff8800c99a6dc0 ffff8800cac73de0 ffff88011e313180
ffff88011e317800
[   11.702427]  0000000000000000 ffffffff81040587 ffffffff815e1e64
0000000000000020
[   11.702432] Call Trace:
[   11.702440]  [<ffffffff811f72ee>] ? dump_stack+0x47/0x69
[   11.702448]  [<ffffffff81040513>] ? warn_slowpath_common+0x73/0xa0
[   11.702453]  [<ffffffff81040587>] ? warn_slowpath_fmt+0x47/0x50
[   11.702459]  [<ffffffff8106aa7c>] ? pick_next_task_fair+0x3dc/0x430
[   11.702465]  [<ffffffff81327eaf>] ? intel_mmio_flip_work_func+0x35f/0x3a0
[   11.702472]  [<ffffffff8105292e>] ? process_one_work+0x11e/0x3b0
[   11.702476]  [<ffffffff81052c02>] ? worker_thread+0x42/0x490
[   11.702480]  [<ffffffff81052bc0>] ? process_one_work+0x3b0/0x3b0
[   11.702484]  [<ffffffff81052bc0>] ? process_one_work+0x3b0/0x3b0
[   11.702490]  [<ffffffff81057908>] ? kthread+0xb8/0xd0
[   11.702497]  [<ffffffff81057850>] ? kthread_worker_fn+0x100/0x100
[   11.702503]  [<ffffffff814d709f>] ? ret_from_fork+0x3f/0x70
[   11.702508]  [<ffffffff81057850>] ? kthread_worker_fn+0x100/0x100
[   11.702512] ---[ end trace 0a1eb232d401ac46 ]---
[   11.704392] drm/i915: Resetting chip after gpu hang


Using SNA acceleration.

System environment:
-- chipset: B85
-- display connector: HDMI
-- system architecture: 64-bit
-- xf86-video-intel: 2.99.917
-- xserver: 1.18
-- mesa: 11.1.1
-- libdrm: 2.4.66
-- kernel: 4.4.0
-- Linux distribution: Gentoo

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