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[Khurshid Alam <khurshid.alam@xxxxxxxxxxxxx>]

I upgraded the BIOS ( now sudo dmidecode -s bios-version shows 68PVU
Ver. F.20 & bios-release-date shows 02/11/2011) but It still freezes.

This what I did to reproduce:

1. Boot with 3.18.x.x kernel in Unity
2. Start gnome-system-log & start monitoring
3. After few minutes crash occurs & it prints out some information
4. System freezes.

Other desktop-shells are not affected.

Crash log before the freeze:
--------------------------------------------------
Jan 30 19:41:13 Compaq-610 kernel: [  350.308886] ------------[ cut here ]------------
Jan 30 19:41:13 Compaq-610 kernel: [  350.308948] WARNING: CPU: 1 PID: 0 at /build/buildd/linux-3.18.0/drivers/gpu/drm/i915/intel_display.c:9916 intel_check_page_flip+0xa7/0xb0 [i915]()
Jan 30 19:41:13 Compaq-610 kernel: [  350.308953] Kicking stuck page flip: queued at 18405, now 18406
Jan 30 19:41:13 Compaq-610 kernel: [  350.308956] Modules linked in: ctr ccm btusb bnep rfcomm bluetooth uvcvideo snd_hda_codec_hdmi videobuf2_vmalloc snd_hda_codec_idt videobuf2_memops videobuf2_core snd_hda_codec_generic arc4 hp_wmi snd_hda_intel v4l2_common iwl3945 videodev sparse_keymap snd_hda_controller snd_hda_codec media iwlegacy snd_hwdep snd_pcm mac80211 snd_seq_midi snd_seq_midi_event snd_rawmidi coretemp snd_seq cfg80211 snd_seq_device i915 snd_timer hp_accel lis3lv02d joydev drm_kms_helper serio_raw snd input_polldev lpc_ich drm soundcore wmi i2c_algo_bit tpm_infineon 8250_fintek shpchp ppdev parport_pc video lp mac_hid parport hid_generic usbhid hid psmouse ahci libahci pata_acpi sky2
Jan 30 19:41:13 Compaq-610 kernel: [  350.309046] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.18.0-11-generic #12-Ubuntu
Jan 30 19:41:13 Compaq-610 kernel: [  350.309050] Hardware name: Hewlett-Packard Compaq 610/308A, BIOS 68PVU Ver. F.20 11/02/2011
Jan 30 19:41:13 Compaq-610 kernel: [  350.309054]  00000001 00000000 f4cf3e9c c16d30f6 f4cf3ee0 f4cf3ed0 c105fba2 f895ce94
Jan 30 19:41:13 Compaq-610 kernel: [  350.309066]  f4cf3efc 00000000 f895aa10 000026bc f8911a17 000026bc f8911a17 f406ec00
Jan 30 19:41:13 Compaq-610 kernel: [  350.309076]  f406ecfc f475b000 f4cf3ee8 c105fbf3 00000009 f4cf3ee0 f895ce94 f4cf3efc
Jan 30 19:41:13 Compaq-610 kernel: [  350.309088] Call Trace:
Jan 30 19:41:13 Compaq-610 kernel: [  350.309099]  [<c16d30f6>] dump_stack+0x41/0x52
Jan 30 19:41:13 Compaq-610 kernel: [  350.309107]  [<c105fba2>] warn_slowpath_common+0x82/0xa0
Jan 30 19:41:13 Compaq-610 kernel: [  350.309151]  [<f8911a17>] ? intel_check_page_flip+0xa7/0xb0 [i915]
Jan 30 19:41:13 Compaq-610 kernel: [  350.309193]  [<f8911a17>] ? intel_check_page_flip+0xa7/0xb0 [i915]
Jan 30 19:41:13 Compaq-610 kernel: [  350.309200]  [<c105fbf3>] warn_slowpath_fmt+0x33/0x40
Jan 30 19:41:13 Compaq-610 kernel: [  350.309242]  [<f8911a17>] intel_check_page_flip+0xa7/0xb0 [i915]
Jan 30 19:41:13 Compaq-610 kernel: [  350.309280]  [<f88e29ac>] i915_handle_vblank+0x4c/0x90 [i915]
Jan 30 19:41:13 Compaq-610 kernel: [  350.309318]  [<f88e6eca>] i965_irq_handler+0x23a/0x310 [i915]
Jan 30 19:41:13 Compaq-610 kernel: [  350.309326]  [<c10b09d6>] handle_irq_event_percpu+0x76/0x190
Jan 30 19:41:13 Compaq-610 kernel: [  350.309333]  [<c10b0b21>] handle_irq_event+0x31/0x50
Jan 30 19:41:13 Compaq-610 kernel: [  350.309339]  [<c10b34d0>] ? handle_level_irq+0xe0/0xe0
Jan 30 19:41:13 Compaq-610 kernel: [  350.309344]  [<c10b352d>] handle_edge_irq+0x5d/0xf0
Jan 30 19:41:13 Compaq-610 kernel: [  350.309351]  [<c10121d5>] handle_irq+0x65/0x80
Jan 30 19:41:13 Compaq-610 kernel: [  350.309355]  <IRQ>  [<c16dab6c>] do_IRQ+0x3c/0xd0
Jan 30 19:41:13 Compaq-610 kernel: [  350.309366]  [<c16da0b3>] common_interrupt+0x33/0x38
Jan 30 19:41:13 Compaq-610 kernel: [  350.309374]  [<c159a53b>] ? cpuidle_enter_state+0x5b/0x170
Jan 30 19:41:13 Compaq-610 kernel: [  350.309381]  [<c159a734>] cpuidle_enter+0x14/0x20
Jan 30 19:41:13 Compaq-610 kernel: [  350.309388]  [<c1099937>] cpu_startup_entry+0x2d7/0x370
Jan 30 19:41:13 Compaq-610 kernel: [  350.309395]  [<c10cce4a>] ? clockevents_register_device+0xaa/0x100
Jan 30 19:41:13 Compaq-610 kernel: [  350.309401]  [<c103fc46>] start_secondary+0x196/0x1e0
Jan 30 19:41:13 Compaq-610 kernel: [  350.309406] ---[ end trace dee513022f2d62cb ]---

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https://bugs.launchpad.net/bugs/1414320

Title:
  Unity(7) freezes completely after Kernel update (3.18.0.9.9) on intel
  GMA-965 (Vivid)

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  After I update the kernel to 3.18.0.9.9, Unity freezes few minutes
  after login on Vivid. This happens for any compiz based session like
  gnome-flashback(compiz). I tried booting with both the systemd &
  upstart from boot menu, but the outcome did not change. Ctrl+Alt+F1 or
  Alt+SysRq does not work after freeze.

  Just before the freeze syslog prints following error:
  ----------------------------------------------------------------------
  Jan 24 20:50:26 Compaq-610 kernel: [  114.028185] WARNING: CPU: 1 PID: 0 at /build/buildd/linux-3.18.0/drivers/gpu/drm/i915/intel_display.c:9916 intel_check_page_flip+0xa7/0xb0 [i915]()

  Jan 24 20:50:26 Compaq-610 kernel: [  114.028189] Kicking stuck page
  flip: queued at 16782129, now 16782130

  &

  Compaq-610 kernel: [  588.815146] gnome-system-lo[2937]: segfault at 14 ip b6c1f4c3 sp bff19e70 error 4 in libglib-2.0.so.0.4303.
  -----------------------------------------------------------------------

  I have attached the complete syslog.txt  & xorg.txt
  (http://paste.ubuntu.com/9852608/) for the session.

  It could also be a bug in kernel, however It does not crash at all on
  non-compiz session like Gnome-Flashback (Metacity).

  unity-7.3.1+15.04.20150115-0ubuntu1
  compiz-1:0.9.12.0+15.04.20141219-0ubuntu1
  systemd-218-5ubuntu2
  xorg-1:7.7+7ubuntu2
  xserver-xorg-video-intel-2:2.99.917-1~exp1ubuntu2
  metacity-1:3.14.3-1ubuntu2
  --- 
  ApportVersion: 2.15.1-0ubuntu2
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  sunny      3409 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 15.04
  HibernationDevice: RESUME=UUID=9f7fbe0a-37fb-4784-b965-0053294b46e5
  InstallationDate: Installed on 2014-12-19 (39 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha i386 (20141217)
  MachineType: Hewlett-Packard Compaq 610
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-28-generic root=UUID=6ea185cd-37d2-4419-b0e1-81921ce21429 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-28.38-generic 3.16.7-ckt1
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-28-generic N/A
   linux-backports-modules-3.16.0-28-generic  N/A
   linux-firmware                             1.141
  Tags:  vivid
  Uname: Linux 3.16.0-28-generic i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 04/24/2009
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68PVU Ver. F.01
  dmi.board.name: 308A
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 26.07
  dmi.chassis.asset.tag: CNU92227B5
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68PVUVer.F.01:bd04/24/2009:svnHewlett-Packard:pnCompaq610:pvrF.01:rvnHewlett-Packard:rn308A:rvrKBCVersion26.07:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: Compaq 610
  dmi.product.version: F.01
  dmi.sys.vendor: Hewlett-Packard

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