[Bug 542643] Re: partial system freeze

[lpd]

Mar 20 12:18:52 tux kernel: [10131.924705] BUG: unable to handle kernel NULL pointer dereference at 00000004
Mar 20 12:18:52 tux kernel: [10131.924712] IP: [<c0127ad8>] __ticket_spin_lock+0x8/0x20
Mar 20 12:18:52 tux kernel: [10131.924722] *pde = 7e143067 
Mar 20 12:18:52 tux kernel: [10131.924726] Oops: 0002 [#1] SMP 
Mar 20 12:18:52 tux kernel: [10131.924729] last sysfs file: /sys/devices/LNXSYSTM:00/device:00/PNP0C0A:00/power_supply/C1AC/charge_full
Mar 20 12:18:52 tux kernel: [10131.924733] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usb_storage usbhid binfmt_misc ppdev vboxnetadp vboxnetflt vboxdrv michael_mic arc4 ecb snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device pcmcia snd soundcore snd_page_alloc yenta_socket lib80211_crypt_tkip rsrc_nonstatic joydev wl(P) pcmcia_core coretemp lib80211 psmouse serio_raw lp parport dm_raid45 xor fbcon tileblit font bitblit softcursor i915 drm i2c_algo_bit e100 mii intel_agp agpgart video output
Mar 20 12:18:52 tux kernel: [10131.924777] 
Mar 20 12:18:52 tux kernel: [10131.924781] Pid: 6, comm: events/0 Tainted: P        W  (2.6.31-20-generic #58-Ubuntu) HP 530 Notebook PC
Mar 20 12:18:52 tux kernel: [10131.924785] EIP: 0060:[<c0127ad8>] EFLAGS: 00010202 CPU: 0
Mar 20 12:18:52 tux kernel: [10131.924788] EIP is at __ticket_spin_lock+0x8/0x20
Mar 20 12:18:52 tux kernel: [10131.924791] EAX: 00000004 EBX: f706df48 ECX: c203eba4 EDX: 00000100
Mar 20 12:18:52 tux kernel: [10131.924793] ESI: e83b52bc EDI: c203eba0 EBP: f706df1c ESP: f706df1c
Mar 20 12:18:52 tux kernel: [10131.924796]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Mar 20 12:18:52 tux kernel: [10131.924799] Process events/0 (pid: 6, ti=f706c000 task=f705bed0 task.ti=f706c000)
Mar 20 12:18:52 tux kernel: [10131.924801] Stack:
Mar 20 12:18:52 tux kernel: [10131.924803]  f706df24 c0573cb8 f706df2c f8a285de f706df58 f817421d 00000000 f706df48
Mar 20 12:18:52 tux kernel: [10131.924809] <0> f706df8c c0571d7c e83b5210 00000000 e83b52bc c203eba0 c203eba0 f706df8c
Mar 20 12:18:52 tux kernel: [10131.924815] <0> c01579de c08185c0 f705c168 c08185c0 00000000 00000937 c08185c0 c203eba4
Mar 20 12:18:52 tux kernel: [10131.924822] Call Trace:
Mar 20 12:18:52 tux kernel: [10131.924828]  [<c0573cb8>] ? _spin_lock+0x8/0x10
Mar 20 12:18:52 tux kernel: [10131.924848]  [<f8a285de>] ? RTSpinlockAcquire+0xe/0x10 [vboxdrv]
Mar 20 12:18:52 tux kernel: [10131.924855]  [<f817421d>] ? vboxNetFltLinuxXmitTask+0x2d/0x1d0 [vboxnetflt]
Mar 20 12:18:52 tux kernel: [10131.924859]  [<c0571d7c>] ? schedule+0x40c/0x730
Mar 20 12:18:52 tux kernel: [10131.924864]  [<c01579de>] ? run_workqueue+0x6e/0x140
Mar 20 12:18:52 tux kernel: [10131.924869]  [<f81741f0>] ? vboxNetFltLinuxXmitTask+0x0/0x1d0 [vboxnetflt]
Mar 20 12:18:52 tux kernel: [10131.924873]  [<c0157b38>] ? worker_thread+0x88/0xe0
Mar 20 12:18:52 tux kernel: [10131.924878]  [<c015c180>] ? autoremove_wake_function+0x0/0x40
Mar 20 12:18:52 tux kernel: [10131.924882]  [<c0157ab0>] ? worker_thread+0x0/0xe0
Mar 20 12:18:52 tux kernel: [10131.924885]  [<c015be8c>] ? kthread+0x7c/0x90
Mar 20 12:18:52 tux kernel: [10131.924889]  [<c015be10>] ? kthread+0x0/0x90
Mar 20 12:18:52 tux kernel: [10131.924893]  [<c0104047>] ? kernel_thread_helper+0x7/0x10
Mar 20 12:18:52 tux kernel: [10131.924895] Code: ff ff 90 b9 8a 79 12 c0 b8 8d 79 12 c0 e9 59 ff ff ff 90 b9 90 79 12 c0 b8 93 79 12 c0 e9 49 ff ff ff 90 55 ba 00 01 00 00 89 e5 <3e> 66 0f c1 10 38 f2 74 06 f3 90 8a 10 eb f6 5d c3 8d b4 26 00 
Mar 20 12:18:52 tux kernel: [10131.924928] EIP: [<c0127ad8>] __ticket_spin_lock+0x8/0x20 SS:ESP 0068:f706df1c
Mar 20 12:18:52 tux kernel: [10131.924933] CR2: 0000000000000004
Mar 20 12:18:52 tux kernel: [10131.924936] ---[ end trace 4b26532ebb16bf10 ]---

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partial system freeze
https://bugs.launchpad.net/bugs/542643
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