ubuntu-x-swat team mailing list archive

[Bryce Harrington <905597@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Was diagnosing bug 867840 by repeatedly unplugging and plugging the DVI
cable on my docking station.  After about the 4th or 5th time, the
kernel froze up.

[  322.898882] BUG: unable to handle kernel NULL pointer dereference at 00000048
[  322.898950] IP: [<f855b001>] drm_mm_scan_add_block+0x11/0x100 [drm]
[  322.899011] *pdpt = 000000003349a001 *pde = 0000000000000000 
[  322.899052] Oops: 0002 [#1] SMP 
[  322.899083] Modules linked in: joydev parport_pc ppdev tpm_infineon usbhid hid rfcomm snd_hda_codec_hdmi bnep snd_hda_codec_realtek snd_usb_audio snd_usbmidi_lib arc4 btusb bluetooth input_polldev pcmcia snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi iwlwifi snd_seq_midi_event mac80211 psmouse serio_raw uvcvideo videodev snd_seq yenta_socket pcmcia_rsrc pcmcia_core cfg80211 snd_timer snd_seq_device tpm_tis i915 snd nfsd nfs lockd fujitsu_laptop fscache auth_rpcgss nfs_acl soundcore snd_page_alloc drm_kms_helper sunrpc binfmt_misc drm i2c_algo_bit video lp parport sdhci_pci sdhci firewire_ohci firewire_core crc_itu_t tg3
[  322.899639] 
[  322.899653] Pid: 2303, comm: compiz Not tainted 3.2.0-5-generic-pae #11-Ubuntu FUJITSU LifeBook T4410/FJNB206
[  322.899728] EIP: 0060:[<f855b001>] EFLAGS: 00210282 CPU: 1
[  322.899775] EIP is at drm_mm_scan_add_block+0x11/0x100 [drm]
[  322.899814] EAX: f284520c EBX: f356b1d4 ECX: 00000000 EDX: f34f3dcc
[  322.899853] ESI: f356b1d4 EDI: f356b244 EBP: f34f3d80 ESP: f34f3d64
[  322.899893]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[  322.899928] Process compiz (pid: 2303, ti=f34f2000 task=f747a610 task.ti=f34f2000)
[  322.899977] Stack:
[  322.899993]  0001b5b2 00001000 01400000 04b9a000 f356b1d4 f356b1d4 f356b244 f34f3d8c
[  322.900072]  f8b449da f34f3dcc f34f3de0 f8b44adf 00000000 10000000 00000000 f34f3db0
[  322.900153]  c103c9f8 00000000 00000001 f34f3dd8 f356b1a8 010284d2 00001000 f356a000
[  322.900232] Call Trace:
[  322.900267]  [<f8b449da>] mark_free+0x2a/0x40 [i915]
[  322.900314]  [<f8b44adf>] i915_gem_evict_something+0xef/0x370 [i915]
[  322.900361]  [<c103c9f8>] ? __kunmap_atomic+0x88/0x90
[  322.900403]  [<f8b406b4>] i915_gem_object_bind_to_gtt+0x1b4/0x400 [i915]
[  322.900460]  [<f8b430ee>] i915_gem_fault+0x20e/0x240 [i915]
[  322.900498]  [<c111424e>] __do_fault+0x6e/0x550
[  322.900531]  [<c1117bb5>] handle_pte_fault+0x95/0x2c0
[  322.900564]  [<c1117fce>] handle_mm_fault+0x15e/0x2c0
[  322.900598]  [<c15a8a3b>] do_page_fault+0x15b/0x490
[  322.900638]  [<f8550bb0>] ? drm_copy_field+0x80/0x80 [drm]
[  322.900679]  [<c1154a89>] ? do_vfs_ioctl+0x79/0x2d0
[  322.900711]  [<c1154d2b>] ? sys_ioctl+0x4b/0x80
[  322.900741]  [<c15a88e0>] ? vmalloc_fault+0x190/0x190
[  322.900775]  [<c15a5ca7>] error_code+0x67/0x6c
[  322.900807] Code: c8 89 45 f0 89 44 24 10 e8 fb 4a 03 c9 8b 55 e8 03 5d f0 eb c2 90 8d 74 26 00 55 89 e5 57 56 53 83 ec 10 3e 8d 74 26 00 8b 48 1c 
[  322.901030]  41 48 01 0f b6 50 10 f6 c2 02 0f 85 d1 00 00 00 83 ca 02 88 
[  322.901140] EIP: [<f855b001>] drm_mm_scan_add_block+0x11/0x100 [drm] SS:ESP 0068:f34f3d64
[  322.901212] CR2: 0000000000000048

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+7ubuntu7
ProcVersionSignature: Ubuntu 3.2.0-5.11-generic-pae 3.2.0-rc5
Uname: Linux 3.2.0-5-generic-pae i686
ApportVersion: 1.90-0ubuntu1
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,imgpng,gnomecompat,regex,place,snap,vpswitch,mousepoll,grid,compiztoolbox,animation,move,session,resize,unitymtgrabhandles,workarounds,wall,expo,fade,ezoom,scale,unityshell]
Date: Fri Dec 16 18:08:58 2011
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Fujitsu Limited. Device [10cf:1458]
   Subsystem: Fujitsu Limited. Device [10cf:1458]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20111121)
MachineType: FUJITSU LifeBook T4410
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-5-generic-pae root=UUID=74b73169-6ac4-4698-bb5e-1f9b21250507 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/30/2009
dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd.
dmi.bios.version: Version 1.05
dmi.board.name: FJNB206
dmi.board.vendor: FUJITSU
dmi.chassis.type: 10
dmi.chassis.vendor: A40R8CE708EA1001
dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvrVersion1.05:bd09/30/2009:svnFUJITSU:pnLifeBookT4410:pvr:rvnFUJITSU:rnFJNB206:rvr:cvnA40R8CE708EA1001:ct10:cvr:
dmi.product.name: LifeBook T4410
dmi.sys.vendor: FUJITSU
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu8
version.libdrm2: libdrm2 2.4.27-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.10.4-1ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: High
         Status: New


** Tags: apport-bug i386 precise regression reproducible running-unity ubuntu

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https://bugs.launchpad.net/bugs/905597

Title:
   BUG: unable to handle kernel NULL pointer dereference at 00000048
  while plugging / unplugging external DVI monitor

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