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[Launchpad Bug Tracker <1369298@xxxxxxxxxxxxxxxxxx>]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: firefox (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1369298

Title:
  launching firefox freezes kde

Status in “firefox” package in Ubuntu:
  Confirmed

Bug description:
  Framework:
  a Kubuntu 14.04 64Bit Virtual machine hosted on a Kubuntu 14.04 64Bit PC
  Either updated minutes ago

  When Firefox is launched the GUI freezes.

  From an ssh session I can gather this from syslog

  Sep 14 19:29:25 vx04-test kernel: [  162.597186] ------------[ cut here ]------------
  Sep 14 19:29:25 vx04-test kernel: [  162.597196] kernel BUG at /build/buildd/linux-3.13.0/drivers/gpu/drm/ttm/ttm_bo.c:172!
  Sep 14 19:29:25 vx04-test kernel: [  162.597198] invalid opcode: 0000 [#1] SMP 
  Sep 14 19:29:25 vx04-test kernel: [  162.597201] Modules linked in: snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi kvm_intel snd_seq snd_seq_device snd_timer kvm rfcomm bnep bluetooth snd serio_raw soundcore i2c_piix4 parport_pc ppdev lp mac_hid parport qxl ttm drm_kms_helper psmouse floppy drm
  Sep 14 19:29:25 vx04-test kernel: [  162.597221] CPU: 1 PID: 1125 Comm: Xorg Not tainted 3.13.0-36-generic #63-Ubuntu
  Sep 14 19:29:25 vx04-test kernel: [  162.597223] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
  Sep 14 19:29:25 vx04-test kernel: [  162.597225] task: ffff880079873000 ti: ffff880079da2000 task.ti: ffff880079da2000
  Sep 14 19:29:25 vx04-test kernel: [  162.597227] RIP: 0010:[<ffffffffa004d181>]  [<ffffffffa004d181>] ttm_bo_add_to_lru+0xe1/0xf0 [ttm]
  Sep 14 19:29:25 vx04-test kernel: [  162.597247] RSP: 0018:ffff880079da3ca8  EFLAGS: 00010287
  Sep 14 19:29:25 vx04-test kernel: [  162.597249] RAX: ffff88005ce020f8 RBX: ffff88005cc523c0 RCX: 00000000fffffffa
  Sep 14 19:29:25 vx04-test kernel: [  162.597251] RDX: ffff8800362bb0e8 RSI: 0000000000000020 RDI: ffff88005ce02048
  Sep 14 19:29:25 vx04-test kernel: [  162.597252] RBP: ffff880079da3ce0 R08: ffff88003e40b630 R09: ffff88003e5d66a8
  Sep 14 19:29:25 vx04-test kernel: [  162.597254] R10: ffffffffa00c8734 R11: 0000000000000000 R12: ffff88005cc52b80
  Sep 14 19:29:25 vx04-test kernel: [  162.597255] R13: ffff88005cc52ba8 R14: ffff88005ce02048 R15: ffff8800362bb548
  Sep 14 19:29:25 vx04-test kernel: [  162.597257] FS:  00007fd68baf09c0(0000) GS:ffff88007fd00000(0000) knlGS:0000000000000000
  Sep 14 19:29:25 vx04-test kernel: [  162.597259] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  Sep 14 19:29:25 vx04-test kernel: [  162.597261] CR2: 00007f9b480c7000 CR3: 000000007a34f000 CR4: 00000000000006e0
  Sep 14 19:29:25 vx04-test kernel: [  162.597269] Stack:
  Sep 14 19:29:25 vx04-test kernel: [  162.597271]  ffffffffa00c8d11 ffff880035e3ff80 ffff880079da3d70 0000000000000004
  Sep 14 19:29:25 vx04-test kernel: [  162.597274]  ffff880035cfe480 ffff8800362bb000 0000000000000000 ffff880079da3d60
  Sep 14 19:29:25 vx04-test kernel: [  162.597277]  ffffffffa00c8207 ffff88005ce02000 ffff8800000003ed ffff880035cfe4f8
  Sep 14 19:29:25 vx04-test kernel: [  162.597280] Call Trace:
  Sep 14 19:29:25 vx04-test kernel: [  162.597291]  [<ffffffffa00c8d11>] ? qxl_release_fence_buffer_objects+0x81/0xe0 [qxl]
  Sep 14 19:29:25 vx04-test kernel: [  162.597297]  [<ffffffffa00c8207>] qxl_process_single_command+0x637/0x750 [qxl]
  Sep 14 19:29:25 vx04-test kernel: [  162.597303]  [<ffffffffa00c835f>] qxl_execbuffer_ioctl+0x3f/0x90 [qxl]
  Sep 14 19:29:25 vx04-test kernel: [  162.597367]  [<ffffffffa0003c22>] drm_ioctl+0x502/0x630 [drm]
  Sep 14 19:29:25 vx04-test kernel: [  162.597377]  [<ffffffff81180a0e>] ? do_mmap_pgoff+0x34e/0x3d0
  Sep 14 19:29:25 vx04-test kernel: [  162.597383]  [<ffffffff811d0390>] do_vfs_ioctl+0x2e0/0x4c0
  Sep 14 19:29:25 vx04-test kernel: [  162.597386]  [<ffffffff811d05f1>] SyS_ioctl+0x81/0xa0
  Sep 14 19:29:25 vx04-test kernel: [  162.597391]  [<ffffffff8172efad>] system_call_fastpath+0x1a/0x1f
  Sep 14 19:29:25 vx04-test kernel: [  162.597392] Code: c1 47 34 83 c0 01 83 f8 01 7e 03 c9 f3 c3 e8 7b 89 00 00 c9 66 0f 1f 44 00 00 eb f0 48 89 7d f8 e8 69 89 00 00 48 8b 7d f8 eb 95 <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 
  Sep 14 19:29:25 vx04-test kernel: [  162.597418] RIP  [<ffffffffa004d181>] ttm_bo_add_to_lru+0xe1/0xf0 [ttm]
  Sep 14 19:29:25 vx04-test kernel: [  162.597423]  RSP <ffff880079da3ca8>
  Sep 14 19:29:25 vx04-test kernel: [  162.597427] ---[ end trace 419bfa3345a08080 ]---

  What can I do?

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: firefox 32.0+build1-0ubuntu0.14.04.1
  ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
  Uname: Linux 3.13.0-36-generic x86_64
  AddonCompatCheckDisabled: False
  ApportVersion: 2.14.1-0ubuntu3.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  sysop      1731 F.... pulseaudio
                        sysop      1820 F.... pulseaudio
  BuildID: 20140830210550
  Channel: Unavailable
  Date: Sun Sep 14 19:46:55 2014
  Extensions: extensions.sqlite corrupt or missing
  ForcedLayersAccel: False
  IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
  InstallationDate: Installed on 2014-09-13 (1 days ago)
  InstallationMedia: Kubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  IpRoute:
   default via 192.168.69.1 dev eth0 
   169.254.0.0/16 dev eth0  scope link  metric 1000 
   192.168.69.0/24 dev eth0  proto kernel  scope link  src 192.168.69.4
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  Locales: extensions.sqlite corrupt or missing
  PrefSources: prefs.js
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=it_IT.UTF-8
   SHELL=/bin/bash
  Profiles: Profile0 (Default) - LastVersion=32.0/20140830210550 (In use)
  RfKill:
   
  RunningIncompatibleAddons: False
  SourcePackage: firefox
  Themes: extensions.sqlite corrupt or missing
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/01/2011
  dmi.bios.vendor: Bochs
  dmi.bios.version: Bochs
  dmi.chassis.type: 1
  dmi.chassis.vendor: Bochs
  dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2011:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-trusty:cvnBochs:ct1:cvr:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-trusty
  dmi.sys.vendor: QEMU

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