[Bug 91452] [HSW] stuck on render ring, WARN_ON(__i915_wait_request(=?UTF-8?Q?=E2=80=A6?=))

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91452

--- Comment #1 from Andreas Reis <andreas.reis at gmail.com> ---
Another one, this time when opening a Youtube video (vp9) on kernel 4.1.3.
Video played fine afterwards.

(With --ignore-gpu-blacklist, Chromium enables all hardware acceleration
whereas without, some like video decoding are disabled.)

[ 6616.135895] [drm] stuck on render ring
[ 6616.136576] [drm] GPU HANG: ecode 7:0:0x85dffffc, in chromium-dev [31153],
reason: Ring hung, action: reset
[ 6616.136577] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 6616.136577] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 6616.136578] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 6616.136578] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 6616.136579] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 6616.136611] ------------[ cut here ]------------
[ 6616.136636] WARNING: CPU: 0 PID: 31460 at
drivers/gpu/drm/i915/intel_display.c:10007
intel_mmio_flip_work_func+0x30a/0x340 [i915]()
[ 6616.136637] WARN_ON(__i915_wait_request(mmio_flip->req, crtc->reset_counter,
false, NULL, NULL) != 0)
[ 6616.136637] Modules linked in:
[ 6616.136638]  
[ 6616.136670] CPU: 0 PID: 31460 Comm: kworker/0:3 Not tainted 4.1.3-1-ARCH #1
[ 6616.136671] Hardware name: Gigabyte Technology Co., Ltd. G1.Sniper
M5/G1.Sniper M5, BIOS T01 02/03/2015
[ 6616.136677] Workqueue: events intel_mmio_flip_work_func [i915]
[ 6616.136678]  0000000000000000 000000005f88c409 ffff880118727cd8
ffffffff815866ee
[ 6616.136679]  0000000000000000 ffff880118727d30 ffff880118727d18
ffffffff81078c9a
[ 6616.136681]  ffff880118727ce8 ffff88041b2848b8 ffff88042f215a80
ffff88041b284000
[ 6616.136682] Call Trace:
[ 6616.136686]  [<ffffffff815866ee>] dump_stack+0x4c/0x6e
[ 6616.136688]  [<ffffffff81078c9a>] warn_slowpath_common+0x8a/0xc0
[ 6616.136689]  [<ffffffff81078d25>] warn_slowpath_fmt+0x55/0x70
[ 6616.136697]  [<ffffffffa012d9ea>] intel_mmio_flip_work_func+0x30a/0x340
[i915]
[ 6616.136699]  [<ffffffff8109f5ed>] ? finish_task_switch+0x5d/0x100
[ 6616.136701]  [<ffffffff8109193b>] process_one_work+0x14b/0x470
[ 6616.136702]  [<ffffffff81091ca8>] worker_thread+0x48/0x4c0
[ 6616.136703]  [<ffffffff81091c60>] ? process_one_work+0x470/0x470
[ 6616.136704]  [<ffffffff81091c60>] ? process_one_work+0x470/0x470
[ 6616.136706]  [<ffffffff810977f8>] kthread+0xd8/0xf0
[ 6616.136707]  [<ffffffff81097720>] ? kthread_worker_fn+0x170/0x170
[ 6616.136709]  [<ffffffff8158c3a2>] ret_from_fork+0x42/0x70
[ 6616.136711]  [<ffffffff81097720>] ? kthread_worker_fn+0x170/0x170
[ 6616.136712] ---[ end trace edbdf95da625cbd0 ]---
[ 6616.138754] drm/i915: Resetting chip after gpu hang
[ 6618.200607] ------------[ cut here ]------------
[ 6618.200631] WARNING: CPU: 0 PID: 0 at
drivers/gpu/drm/i915/intel_display.c:10098 intel_check_page_flip+0xda/0xf0
[i915]()
[ 6618.200632] Kicking stuck page flip: queued at 396896, now 396900
[ 6618.200632] Modules linked in: 
[ 6618.200663] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W      
4.1.3-1-ARCH #1
[ 6618.200664] Hardware name: Gigabyte Technology Co., Ltd. G1.Sniper
M5/G1.Sniper M5, BIOS T01 02/03/2015
[ 6618.200665]  0000000000000000 b27cae4b982b6f29 ffff88042f203d18
ffffffff815866ee
[ 6618.200666]  0000000000000000 ffff88042f203d70 ffff88042f203d58
ffffffff81078c9a
[ 6618.200667]  ffff88042f203d88 ffff88041b284000 ffff88041cabe800
ffff88041cabe9a0
[ 6618.200669] Call Trace:
[ 6618.200670]  <IRQ>  [<ffffffff815866ee>] dump_stack+0x4c/0x6e
[ 6618.200675]  [<ffffffff81078c9a>] warn_slowpath_common+0x8a/0xc0
[ 6618.200676]  [<ffffffff81078d25>] warn_slowpath_fmt+0x55/0x70
[ 6618.200683]  [<ffffffffa01410ba>] intel_check_page_flip+0xda/0xf0 [i915]
[ 6618.200690]  [<ffffffffa010a52c>] ironlake_irq_handler+0x2ac/0x1000 [i915]
[ 6618.200693]  [<ffffffff810d4d9e>] handle_irq_event_percpu+0x3e/0x1f0
[ 6618.200694]  [<ffffffff810d4f91>] handle_irq_event+0x41/0x70
[ 6618.200696]  [<ffffffff810d811e>] handle_edge_irq+0x9e/0x110
[ 6618.200698]  [<ffffffff810181a2>] handle_irq+0x22/0x40
[ 6618.200700]  [<ffffffff8158eacf>] do_IRQ+0x4f/0xf0
[ 6618.200702]  [<ffffffff8158caee>] common_interrupt+0x6e/0x6e
[ 6618.200703]  <EOI>  [<ffffffff8143fe72>] ? cpuidle_enter_state+0x92/0x240
[ 6618.200706]  [<ffffffff8143fe44>] ? cpuidle_enter_state+0x64/0x240
[ 6618.200707]  [<ffffffff81440057>] cpuidle_enter+0x17/0x20
[ 6618.200708]  [<ffffffff810bccac>] cpu_startup_entry+0x31c/0x450
[ 6618.200710]  [<ffffffff8157ccda>] rest_init+0x8a/0x90
[ 6618.200711]  [<ffffffff818fa021>] start_kernel+0x48e/0x4af
[ 6618.200713]  [<ffffffff818f9120>] ? early_idt_handler_array+0x120/0x120
[ 6618.200714]  [<ffffffff818f9339>] x86_64_start_reservations+0x2a/0x2c
[ 6618.200715]  [<ffffffff818f9485>] x86_64_start_kernel+0x14a/0x16d
[ 6618.200716] ---[ end trace edbdf95da625cbd1 ]---

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