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[AntonioDiMartino <antonio.dimartino1@xxxxxxxxx>]

Hello,
same problem here :

Bell kernel: [14133.006333] [drm] GPU HANG: ecode 3:0:0x74ffffc1, in Xorg [1213], reason: Ring hung, action: reset
Oct 27 22:57:23 Bell kernel: [14133.006341] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
Oct 27 22:57:23 Bell kernel: [14133.006345] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
Oct 27 22:57:23 Bell kernel: [14133.006348] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
Oct 27 22:57:23 Bell kernel: [14133.006352] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
Oct 27 22:57:23 Bell kernel: [14133.006356] [drm] GPU crash dump saved to /sys/class/drm/card0/error
Oct 27 22:57:23 Bell kernel: [14133.006507] ------------[ cut here ]------------
Oct 27 22:57:23 Bell kernel: [14133.006593] WARNING: CPU: 0 PID: 7509 at /build/linux-hXawIp/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:3294 intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]()
Oct 27 22:57:23 Bell kernel: [14133.006597] WARN_ON(ret)
Oct 27 22:57:23 Bell kernel: [14133.006601] Modules linked in: nvram msr pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media acer_wmi sparse_keymap arc4 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm ath5k snd_seq_midi ath snd_seq_midi_event mac80211 snd_rawmidi snd_seq snd_seq_device cfg80211 snd_timer input_leds joydev serio_raw snd lpc_ich soundcore shpchp mac_hid coretemp parport_pc ppdev lp parport autofs4 hid_generic usbhid i915 hid psmouse ahci libahci i2c_algo_bit drm_kms_helper drm atl1c video wmi
Oct 27 22:57:23 Bell kernel: [14133.006702] CPU: 0 PID: 7509 Comm: kworker/u4:0 Tainted: G           OE   4.2.0-16-generic #19-Ubuntu
Oct 27 22:57:23 Bell kernel: [14133.006707] Hardware name: Packard Be DOTS            /DOTS            , BIOS V1.29 12/18/2010
Oct 27 22:57:23 Bell kernel: [14133.006760] Workqueue: i915-hangcheck i915_hangcheck_elapsed [i915]
Oct 27 22:57:23 Bell kernel: [14133.006765]  c1a629a7 19a0f9a4 00000000 f295bd48 c175dae1 f295bd88 f295bd78 c106a687
Oct 27 22:57:23 Bell kernel: [14133.006777]  f8aaa8e9 f295bda8 00001d55 f8a9ca44 00000cde f8a3f22c f8a3f22c f5948000
Oct 27 22:57:23 Bell kernel: [14133.006788]  f1a49034 00000001 f295bd94 c106a6fe 00000009 f295bd88 f8aaa8e9 f295bda8
Oct 27 22:57:23 Bell kernel: [14133.006800] Call Trace:
Oct 27 22:57:23 Bell kernel: [14133.006813]  [<c175dae1>] dump_stack+0x41/0x52
Oct 27 22:57:23 Bell kernel: [14133.006821]  [<c106a687>] warn_slowpath_common+0x87/0xc0
Oct 27 22:57:23 Bell kernel: [14133.006878]  [<f8a3f22c>] ? intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]
Oct 27 22:57:23 Bell kernel: [14133.006934]  [<f8a3f22c>] ? intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]
Oct 27 22:57:23 Bell kernel: [14133.006941]  [<c106a6fe>] warn_slowpath_fmt+0x3e/0x60
Oct 27 22:57:23 Bell kernel: [14133.006997]  [<f8a3f22c>] intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]
Oct 27 22:57:23 Bell kernel: [14133.007037]  [<f885ffd4>] ? drm_modeset_lock_all_crtcs+0x84/0x90 [drm]
Oct 27 22:57:23 Bell kernel: [14133.007094]  [<f8a405f4>] intel_crtc_disable_planes+0x34/0xf0 [i915]
Oct 27 22:57:23 Bell kernel: [14133.007150]  [<f8a4075a>] intel_prepare_reset+0x6a/0x80 [i915]
Oct 27 22:57:23 Bell kernel: [14133.007200]  [<f8a127b7>] i915_handle_error+0x147/0x6e0 [i915]
Oct 27 22:57:23 Bell kernel: [14133.007208]  [<c10be1bd>] ? log_store+0x1cd/0x210
Oct 27 22:57:23 Bell kernel: [14133.007217]  [<c10bfa91>] ? vprintk_default+0x41/0x60
Oct 27 22:57:23 Bell kernel: [14133.007267]  [<f8a12fd3>] i915_hangcheck_elapsed+0x233/0x410 [i915]
Oct 27 22:57:23 Bell kernel: [14133.007276]  [<c10810b5>] process_one_work+0x155/0x3e0
Oct 27 22:57:23 Bell kernel: [14133.007282]  [<c1081377>] worker_thread+0x37/0x490
Oct 27 22:57:23 Bell kernel: [14133.007289]  [<c1081340>] ? process_one_work+0x3e0/0x3e0
Oct 27 22:57:23 Bell kernel: [14133.007295]  [<c1086a56>] kthread+0xa6/0xc0
Oct 27 22:57:23 Bell kernel: [14133.007304]  [<c1763741>] ret_from_kernel_thread+0x21/0x30
Oct 27 22:57:23 Bell kernel: [14133.007310]  [<c10869b0>] ? kthread_create_on_node+0x170/0x170
Oct 27 22:57:23 Bell kernel: [14133.007316] ---[ end trace 638331bb55a9eab5 ]---
Oct 27 22:57:23 Bell kernel: [14133.284499] drm/i915: Resetting chip after gpu hang

I've added the file where kernel saved crash details, /sys/class/drm/card0/error.
This is my first bug report, so if more infos are needed, please tell me how to do, i mean, if there is a script or i have to do it manually.
Thanks.


** Attachment added: "error"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1511045/+attachment/4508519/+files/error

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https://bugs.launchpad.net/bugs/1511045

Title:
  Gpu hang unexpected

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  $ dmesg | grep drm
  [    2.457690] [drm] Initialized drm 1.1.0 20060810
  [    2.799030] [drm] Memory usable by graphics device = 256M
  [    2.799059] fb: switching to inteldrmfb from VESA VGA
  [    2.799497] [drm] Replacing VGA console driver
  [    2.801977] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
  [    2.801987] [drm] Driver supports precise vblank timestamp query.
  [    2.833563] [drm] initialized overlay support
  [    2.833703] [drm] Initialized i915 1.6.0 20150522 for 0000:00:02.0 on minor 0
  [    2.935517] fbcon: inteldrmfb (fb0) is primary device
  [    2.936113] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
  [ 2762.004076] [drm] stuck on render ring
  [ 2762.009803] [drm] GPU HANG: ecode 3:0:0x7a7fffc1, in Xorg [1162], reason: Ring hung, action: reset
  [ 2762.009816] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
  [ 2762.009821] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
  [ 2762.009827] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
  [ 2762.009832] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
  [ 2762.009837] [drm] GPU crash dump saved to /sys/class/drm/card0/error
  [ 2762.042393] drm/i915: Resetting chip after gpu hang

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-16-generic 4.2.0-16.19
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic i686
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: i386
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CurrentDesktop: MATE
  Date: Wed Oct 28 18:11:02 2015
  HibernationDevice: RESUME=/dev/mapper/192--168--0--102--vg-swap_1
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  MachineType: Olidata S.p.A. ALABAMA
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-16-generic root=/dev/mapper/192--168--0--102--vg-root ro splash quiet vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            1.149
  RfKill:
   
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/08/2008
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: S0101
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: To be filled by O.E.M.
  dmi.board.vendor: To be filled by O.E.M.
  dmi.board.version: To be filled by O.E.M.
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrS0101:bd07/08/2008:svnOlidataS.p.A.:pnALABAMA:pvrToBeFilledByO.E.M.:rvnTobefilledbyO.E.M.:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: ALABAMA
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: Olidata S.p.A.

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