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[Bug 1535714] Re: Xorg freeze

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Daniel Walton <daniel.walton@xxxxxxxxx>
Date: Thu, 04 Feb 2016 11:55:09 -0000
Reply-to: Bug 1535714 <1535714@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
using std wily kernel "4.2.0-25-generic" my system will freeze over night.
Happened 2 nights in a row.  Leave the laptop plugged in and turned on, in the morning system is unresponsive. capslock light doesn't change.
Cannot be pinged or ssh'ed into across network (wifi)
When booting usual spach screen doesn't appear. Need to gues it's at encryption dialog entry, and type passwords to boot.
so have removed  "quiet splash" boot options.

Initial bug report above was done while ssh'ed in, as keyboard not working, screen blank.
Seemed like a video card driver issue as i was unable to get the screen to appear after attempting to restart lightdm service.

have installed and have been running "4.4.0-997-generic" from ubuntu mainline intel driver kernel. (linux-image-4.4.0-997-generic_4.4.0-997.201601242100_amd64.deb)
(after 4.2 kernel)
Has been stable and wakes from suspend mode happily.

Will continue to report back if chagnes in behaviour.

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https://bugs.launchpad.net/bugs/1535714

Title:
  Xorg freeze

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  randomly system will freeze. Freeze in that screen will be blank and
  system will not accept keyboard commands to change to a terminal or to
  chagne the caps lock light.

  Can ssh into the laptop while its  "frozen". The syslog/journal shows
  a kenel stacktrace (below)

  Seems more common after suspending.

  don't recall it happening with 15.04. If it did start with 15.04 it
  would of been with the latter kernels.

  Seems similar to:
  https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1454868

  
  ### kenel crash log from logs ###

  Jan 19 23:23:10 ath lightdm[6665]: pam_unix(lightdm:session): session closed for user bob
  Jan 19 23:23:10 ath kernel: ------------[ cut here ]------------
  Jan 19 23:23:10 ath kernel: WARNING: CPU: 2 PID: 6493 at /home/kernel/COD/linux/include/linux/kref.h:46 drm_framebuffer_reference+0x64/0x70 [d
  Jan 19 23:23:10 ath kernel: Modules linked in: ctr ccm rfcomm xt_recent xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptab
  Jan 19 23:23:10 ath kernel:  snd_hda_core memstick serio_raw snd_pcm_dmaengine snd_hwdep snd_pcm snd_seq_midi i2c_designware_platform snd_seq_
  Jan 19 23:23:10 ath kernel:  ppdev lp parport autofs4 btrfs drbg ansi_cprng xts gf128mul algif_skcipher af_alg dm_crypt raid10 raid456 async_r
  Jan 19 23:23:10 ath kernel: CPU: 2 PID: 6493 Comm: Xorg Not tainted 4.4.0-040400rc7-generic #201512272230
  Jan 19 23:23:10 ath kernel: Hardware name: ASUSTeK COMPUTER INC. X200MA/X200MA, BIOS X200MA.302 01/21/2014
  Jan 19 23:23:10 ath kernel:  0000000000000000 00000000d23b3796 ffff880019dc3948 ffffffff813c9124
  Jan 19 23:23:10 ath kernel:  0000000000000000 ffff880019dc3980 ffffffff8107db92 ffff880035b446c0
  Jan 19 23:23:10 ath kernel:  ffff88001834c300 ffff88001834c300 ffff88010b10ac00 ffff880035484000
  Jan 19 23:23:10 ath kernel: Call Trace:
  Jan 19 23:23:10 ath kernel:  [<ffffffff813c9124>] dump_stack+0x44/0x60
  Jan 19 23:23:10 ath kernel:  [<ffffffff8107db92>] warn_slowpath_common+0x82/0xc0
  Jan 19 23:23:10 ath kernel:  [<ffffffff8107dcda>] warn_slowpath_null+0x1a/0x20
  Jan 19 23:23:10 ath kernel:  [<ffffffffc00d4704>] drm_framebuffer_reference+0x64/0x70 [drm]
  Jan 19 23:23:10 ath kernel:  [<ffffffffc00e6a0d>] drm_atomic_set_fb_for_plane+0x2d/0x90 [drm]
  Jan 19 23:23:10 ath kernel:  [<ffffffffc016bdde>] __drm_atomic_helper_set_config+0xde/0x3c0 [drm_kms_helper]
  Jan 19 23:23:10 ath kernel:  [<ffffffffc016cd01>] restore_fbdev_mode+0x221/0x260 [drm_kms_helper]
  Jan 19 23:23:10 ath kernel:  [<ffffffffc016ef13>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper]
  Jan 19 23:23:10 ath kernel:  [<ffffffffc016ef8d>] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper]
  Jan 19 23:23:10 ath kernel:  [<ffffffffc024ecca>] intel_fbdev_set_par+0x1a/0x60 [i915]
  Jan 19 23:23:10 ath kernel:  [<ffffffff8144bf06>] fb_set_var+0x236/0x460
  Jan 19 23:23:10 ath kernel:  [<ffffffff810b4df4>] ? enqueue_task_fair+0xa4/0x8b0
  Jan 19 23:23:10 ath kernel:  [<ffffffff8101fd59>] ? sched_clock+0x9/0x10
  Jan 19 23:23:10 ath kernel:  [<ffffffff810ad9bf>] ? sched_clock_cpu+0x8f/0xa0
  Jan 19 23:23:10 ath kernel:  [<ffffffff8144221f>] fbcon_blank+0x30f/0x350
  Jan 19 23:23:10 ath kernel:  [<ffffffffc03b6b18>] ? set_extent_buffer_dirty+0x78/0xd0 [btrfs]
  Jan 19 23:23:10 ath kernel:  [<ffffffff814d8e33>] do_unblank_screen+0xd3/0x1a0
  Jan 19 23:23:10 ath kernel:  [<ffffffff814ce4fa>] vt_ioctl+0x50a/0x12f0
  Jan 19 23:23:10 ath kernel:  [<ffffffff814c1aff>] tty_ioctl+0x35f/0xc30
  Jan 19 23:23:10 ath kernel:  [<ffffffff811e5dc5>] ? kfree+0x115/0x130
  Jan 19 23:23:10 ath kernel:  [<ffffffff8121ca73>] ? dput+0xb3/0x220
  Jan 19 23:23:10 ath kernel:  [<ffffffff81226044>] ? mntput+0x24/0x40
  Jan 19 23:23:10 ath kernel:  [<ffffffff812192a8>] do_vfs_ioctl+0x298/0x480
  Jan 19 23:23:10 ath kernel:  [<ffffffff81207ade>] ? ____fput+0xe/0x10
  Jan 19 23:23:10 ath kernel:  [<ffffffff8109b138>] ? task_work_run+0x78/0x90
  Jan 19 23:23:10 ath kernel:  [<ffffffff81219509>] SyS_ioctl+0x79/0x90
  Jan 19 23:23:10 ath kernel:  [<ffffffff817fcff6>] entry_SYSCALL_64_fastpath+0x16/0x75
  Jan 19 23:23:10 ath kernel: ---[ end trace 65a51a25ba0b2f99 ]---
  Jan 19 23:23:10 ath kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000060
  Jan 19 23:23:10 ath kernel: IP: [<ffffffffc0245bbc>] intel_fb_obj_invalidate+0x1c/0xf0 [i915]
  Jan 19 23:23:10 ath kernel: PGD 0 
  Jan 19 23:23:10 ath kernel: Oops: 0000 [#1] SMP 
  Jan 19 23:23:10 ath kernel: Modules linked in: ctr ccm rfcomm xt_recent xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptab
  Jan 19 23:23:10 ath kernel:  snd_hda_core memstick serio_raw snd_pcm_dmaengine snd_hwdep snd_pcm snd_seq_midi i2c_designware_platform snd_seq_
  Jan 19 23:23:10 ath kernel:  ppdev lp parport autofs4 btrfs drbg ansi_cprng xts gf128mul algif_skcipher af_alg dm_crypt raid10 raid456 async_r
  Jan 19 23:23:10 ath kernel: CPU: 2 PID: 6493 Comm: Xorg Tainted: G        W       4.4.0-040400rc7-generic #201512272230
  Jan 19 23:23:10 ath kernel: Hardware name: ASUSTeK COMPUTER INC. X200MA/X200MA, BIOS X200MA.302 01/21/2014
  Jan 19 23:23:10 ath kernel: task: ffff88006797be80 ti: ffff880019dc0000 task.ti: ffff880019dc0000
  Jan 19 23:23:10 ath kernel: RIP: 0010:[<ffffffffc0245bbc>]  [<ffffffffc0245bbc>] intel_fb_obj_invalidate+0x1c/0xf0 [i915]
  Jan 19 23:23:10 ath kernel: RSP: 0018:ffff880019dc3a80  EFLAGS: 00010246
  Jan 19 23:23:10 ath kernel: RAX: ffff88006797be80 RBX: ffff880110267500 RCX: 00000000000f7e8c
  Jan 19 23:23:10 ath kernel: RDX: ffff880035b446c0 RSI: 0000000000000000 RDI: ffff880110267500
  Jan 19 23:23:10 ath kernel: RBP: ffff880019dc3aa8 R08: 0000000000019d80 R09: ffffffffc00e4d46
  Jan 19 23:23:10 ath kernel: R10: ffffea0002489500 R11: ffff8800b2d5b600 R12: 0000000000000000
  Jan 19 23:23:10 ath kernel: R13: 0000000000000000 R14: 0000000000200001 R15: 0000000000000080
  Jan 19 23:23:10 ath kernel: FS:  00007f17d8149980(0000) GS:ffff88013fd00000(0000) knlGS:0000000000000000
  Jan 19 23:23:10 ath kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  Jan 19 23:23:10 ath kernel: CR2: 0000000000000060 CR3: 000000011a128000 CR4: 00000000001006e0
  Jan 19 23:23:10 ath kernel: Stack:
  Jan 19 23:23:10 ath kernel:  ffff880035475e00 ffff88003532b000 0000000000000000 0000000000200001
  Jan 19 23:23:10 ath kernel:  0000000000000080 ffff880019dc3ac8 ffffffffc024ecf3 000000000004aa1e
  Jan 19 23:23:10 ath kernel:  ffff880019dc3c70 ffff880019dc3c40 ffffffff8144bf06 ffff88003532b060
  Jan 19 23:23:10 ath kernel: Call Trace:
  Jan 19 23:23:10 ath kernel:  [<ffffffffc024ecf3>] intel_fbdev_set_par+0x43/0x60 [i915]
  Jan 19 23:23:10 ath kernel:  [<ffffffff8144bf06>] fb_set_var+0x236/0x460
  Jan 19 23:23:10 ath kernel:  [<ffffffff810b4df4>] ? enqueue_task_fair+0xa4/0x8b0
  Jan 19 23:23:10 ath kernel:  [<ffffffff8101fd59>] ? sched_clock+0x9/0x10
  Jan 19 23:23:10 ath kernel:  [<ffffffff810ad9bf>] ? sched_clock_cpu+0x8f/0xa0
  Jan 19 23:23:10 ath kernel:  [<ffffffff8144221f>] fbcon_blank+0x30f/0x350
  Jan 19 23:23:10 ath kernel:  [<ffffffffc03b6b18>] ? set_extent_buffer_dirty+0x78/0xd0 [btrfs]
  Jan 19 23:23:10 ath kernel:  [<ffffffff814d8e33>] do_unblank_screen+0xd3/0x1a0
  Jan 19 23:23:10 ath kernel:  [<ffffffff814ce4fa>] vt_ioctl+0x50a/0x12f0
  Jan 19 23:23:10 ath kernel:  [<ffffffff814c1aff>] tty_ioctl+0x35f/0xc30
  Jan 19 23:23:10 ath kernel:  [<ffffffff811e5dc5>] ? kfree+0x115/0x130
  Jan 19 23:23:10 ath kernel:  [<ffffffff8121ca73>] ? dput+0xb3/0x220
  Jan 19 23:23:10 ath kernel:  [<ffffffff81226044>] ? mntput+0x24/0x40
  Jan 19 23:23:10 ath kernel:  [<ffffffff812192a8>] do_vfs_ioctl+0x298/0x480
  Jan 19 23:23:10 ath kernel:  [<ffffffff81207ade>] ? ____fput+0xe/0x10
  Jan 19 23:23:10 ath kernel:  [<ffffffff8109b138>] ? task_work_run+0x78/0x90
  Jan 19 23:23:10 ath kernel:  [<ffffffff81219509>] SyS_ioctl+0x79/0x90
  Jan 19 23:23:10 ath kernel:  [<ffffffff817fcff6>] entry_SYSCALL_64_fastpath+0x16/0x75
  Jan 19 23:23:10 ath kernel: Code: 41 5f 5d c3 90 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 41 89 f5 53 
  Jan 19 23:23:10 ath kernel: RIP  [<ffffffffc0245bbc>] intel_fb_obj_invalidate+0x1c/0xf0 [i915]
  Jan 19 23:23:10 ath kernel:  RSP <ffff880019dc3a80>
  Jan 19 23:23:10 ath kernel: CR2: 0000000000000060
  Jan 19 23:23:10 ath kernel: ---[ end trace 65a51a25ba0b2f9a ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  Uname: Linux 4.4.0-040400rc7-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  Date: Tue Jan 19 23:32:16 2016
  DistUpgraded: 2015-10-26 07:28:02,425 DEBUG enabling apt cron job
  DistroCodename: wily
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GpuHangFrequency: Several times a week
  GpuHangReproducibility: Seems to happen randomly
  GpuHangStarted: Immediately after installing this version of Ubuntu
  GraphicsCard:
   Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display [8086:0f31] (rev 0c) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:15bd]
  InstallationDate: Installed on 2014-07-31 (537 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: ASUSTeK COMPUTER INC. X200MA
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-040400rc7-generic root=UUID=5e8a8002-00f4-434f-a107-f6427d316379 ro rootflags=subvol=@ quiet splash zswap.enabled=1 nomdmonddf nomdmonisw nomdmonddf nomdmonisw vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  UpgradeStatus: Upgraded to wily on 2015-10-25 (85 days ago)
  dmi.bios.date: 01/21/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X200MA.302
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X200MA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX200MA.302:bd01/21/2014:svnASUSTeKCOMPUTERINC.:pnX200MA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX200MA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X200MA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  version.compiz: compiz 1:0.9.12.2+15.10.20151015-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.64-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
  xserver.bootTime: Tue Jan 19 13:52:59 2016
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                4377 
   vendor                                     CMN
  xserver.version: 2:1.17.2-1ubuntu9.1

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References

[Bug 1535714] [NEW] Xorg freeze
From: Daniel Walton, 2016-01-19