[Bug 94327] GPU HANG: ecode 3:0:0x6affffc1, in Xorg [774], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94327

--- Comment #1 from Sturnclaw <info at web-eworks.com> ---
Output from dmesg after another one.

[55812.000283] [drm] stuck on render ring
[55812.006832] [drm] GPU HANG: ecode 3:0:0x6adfffc1, in Xorg [774], reason:
Ring hung, action: reset
[55812.009398] ------------[ cut here ]------------
[55812.009488] WARNING: CPU: 0 PID: 14534 at
/build/linux-DW8ESA/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:3296
intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]()
[55812.009493] WARN_ON(ret)
[55812.009498] Modules linked in:
[55812.009503]  bnep drbg ansi_cprng ctr ccm btusb btrtl btbcm btintel
bluetooth snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel
snd_hda_codec uvcvideo snd_hda_core videobuf2_vmalloc snd_hwdep
videobuf2_memops videobuf2_core snd_pcm arc4 v4l2_common videodev snd_seq_midi
snd_seq_midi_event media ath9k coretemp snd_rawmidi ath9k_common ath9k_hw
snd_seq joydev input_leds ath serio_raw mac80211 lpc_ich cfg80211
snd_seq_device snd_timer snd soundcore shpchp toshiba_acpi sparse_keymap
toshiba_haps wmi toshiba_bluetooth mac_hid parport_pc ppdev lp parport autofs4
i915 ahci psmouse libahci pata_acpi i2c_algo_bit drm_kms_helper drm r8169 mii
video
[55812.009671] CPU: 0 PID: 14534 Comm: kworker/u4:43 Not tainted
4.2.0-30-generic #35-Ubuntu
[55812.009677] Hardware name: TOSHIBA TOSHIBA NB205/KAVAA, BIOS V1.70
09/30/2009
[55812.009743] Workqueue: i915-hangcheck i915_hangcheck_elapsed [i915]
[55812.009750]  c1a689a7 a5c50c8a 00000000 c6073d48 c1760bfb c6073d88 c6073d78
c106ad97
[55812.009767]  f8a4a97d c6073da8 000038c6 f8a3ca90 00000ce0 f89df1ec f89df1ec
f5d50000
[55812.009783]  c01b2434 00000001 c6073d94 c106ae0e 00000009 c6073d88 f8a4a97d
c6073da8
[55812.009799] Call Trace:
[55812.009813]  [<c1760bfb>] dump_stack+0x41/0x52
[55812.009824]  [<c106ad97>] warn_slowpath_common+0x87/0xc0
[55812.009896]  [<f89df1ec>] ? intel_crtc_wait_for_pending_flips+0x17c/0x220
[i915]
[55812.009966]  [<f89df1ec>] ? intel_crtc_wait_for_pending_flips+0x17c/0x220
[i915]
[55812.009977]  [<c106ae0e>] warn_slowpath_fmt+0x3e/0x60
[55812.010047]  [<f89df1ec>] intel_crtc_wait_for_pending_flips+0x17c/0x220
[i915]
[55812.010100]  [<f8800094>] ? drm_modeset_lock_all_crtcs+0x84/0x90 [drm]
[55812.010175]  [<f89e05b4>] intel_crtc_disable_planes+0x34/0xf0 [i915]
[55812.010251]  [<f89e071a>] intel_prepare_reset+0x6a/0x80 [i915]
[55812.010321]  [<f89b2947>] i915_handle_error+0x147/0x6e0 [i915]
[55812.010343]  [<c10c0251>] ? vprintk_default+0x41/0x60
[55812.010410]  [<f89b3163>] i915_hangcheck_elapsed+0x233/0x410 [i915]
[55812.010427]  [<c1081825>] process_one_work+0x155/0x3e0
[55812.010439]  [<c1081ae7>] worker_thread+0x37/0x490
[55812.010448]  [<c1081ab0>] ? process_one_work+0x3e0/0x3e0
[55812.010456]  [<c10871a6>] kthread+0xa6/0xc0
[55812.010468]  [<c1766881>] ret_from_kernel_thread+0x21/0x30
[55812.010477]  [<c1087100>] ? kthread_create_on_node+0x170/0x170
[55812.010486] ---[ end trace 1a8a7f8a2fb381ad ]---
[55812.054863] drm/i915: Resetting chip after gpu hang

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