here is another instance of this problem. this time it left xorg
tainted. the kernel magic keys did work to reboot though.
Sep 9 10:01:47 filet kernel: [ 8451.101274] BUG: unable to handle kernel NULL
pointer dereference at 0000000000000128
Sep 9 10:01:47 filet kernel: [ 8451.101287] IP: [<ffffffffa01e0e4a>]
_nv012901rm+0x46e/0xc88 [nvidia]
Sep 9 10:01:47 filet kernel: [ 8451.101636] PGD 13d9fe067 PUD 13d9fd067 PMD 0
Sep 9 10:01:47 filet kernel: [ 8451.101644] Oops: 0000 [#1] SMP
Sep 9 10:01:47 filet kernel: [ 8451.101650] last sysfs file:
/sys/devices/pci0000:00/0000:00:1a.7/usb1/1-4/1-4.4/1-4.4:1.0/host8/target8:0:0/8:0:0:0/block/sdc/sdc1/stat
Sep 9 10:01:47 filet kernel: [ 8451.101659] Dumping ftrace buffer:
Sep 9 10:01:47 filet kernel: [ 8451.101664] (ftrace buffer empty)
Sep 9 10:01:47 filet kernel: [ 8451.101668] CPU 1
Sep 9 10:01:47 filet kernel: [ 8451.101671] Modules linked in: nls_iso8859_1
nls_cp437 vfat fat usb_storage aes_x86_64 aes_generic binfmt_misc bridge stp
bnep vboxnetadp vboxnetflt vboxdrv input_polldev lp pata_pcmcia usbhid btusb
arc4 ecb pcmcia leds_hp_disk iwlagn iwlcore joydev ppdev snd_hda_intel
snd_pcm_oss snd_mixer_oss psmouse led_class snd_pcm snd_seq_dummy snd_seq_oss
pcspkr serio_raw yenta_socket rsrc_nonstatic pcmcia_core ricoh_mmc mac80211
sdhci_pci sdhci parport_pc parport tpm_infineon tpm tpm_bios lis3lv02d iTCO_wdt
iTCO_vendor_support cfg80211 intel_agp snd_seq_midi snd_rawmidi
snd_seq_midi_event snd_seq snd_timer snd_seq_device video output snd soundcore
snd_page_alloc nvidia(P) ohci1394 ieee1394 e1000e fbcon tileblit font bitblit
softcursor
Sep 9 10:01:47 filet kernel: [ 8451.101785] Pid: 3153, comm: Xorg Tainted: P
2.6.28-15-generic #49-Ubuntu
Sep 9 10:01:47 filet kernel: [ 8451.101790] RIP: 0010:[<ffffffffa01e0e4a>]
[<ffffffffa01e0e4a>] _nv012901rm+0x46e/0xc88 [nvidia]
Sep 9 10:01:47 filet kernel: [ 8451.102107] RSP: 0018:ffff88013d17bd38
EFLAGS: 00010246
Sep 9 10:01:47 filet kernel: [ 8451.102111] RAX: 000000ffffffffff RBX:
0000000000000000 RCX: ffff8800b352a940
Sep 9 10:01:47 filet kernel: [ 8451.102116] RDX: 000000001ee58000 RSI:
000000ffffffffff RDI: ffff88013dd39580
Sep 9 10:01:47 filet kernel: [ 8451.102120] RBP: ffff88013d542e40 R08:
ffff88013e0aa000 R09: ffff88013d542f10
Sep 9 10:01:47 filet kernel: [ 8451.102125] R10: 0000000000000000 R11:
0000000000003206 R12: 0000000000000000
Sep 9 10:01:47 filet kernel: [ 8451.102129] R13: ffff8801384cd000 R14:
0000000000010000 R15: 0000000000000000
Sep 9 10:01:47 filet kernel: [ 8451.102135] FS: 00007f806da33700(0000)
GS:ffff88013f802d80(0000) knlGS:0000000000000000
Sep 9 10:01:47 filet kernel: [ 8451.102140] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Sep 9 10:01:47 filet kernel: [ 8451.102144] CR2: 0000000000000128 CR3:
00000001384d9000 CR4: 00000000000006a0
Sep 9 10:01:47 filet kernel: [ 8451.102149] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Sep 9 10:01:47 filet kernel: [ 8451.102153] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Sep 9 10:01:47 filet kernel: [ 8451.102159] Process Xorg (pid: 3153,
threadinfo ffff88013d17a000, task ffff88013ddc8000)
Sep 9 10:01:47 filet kernel: [ 8451.102163] Stack:
Sep 9 10:01:47 filet kernel: [ 8451.102166] ffff88013d542fe0 00000000c1d00000
0000000000000000 0000000000000000
Sep 9 10:01:47 filet kernel: [ 8451.102174] 000000000003d800 ffffffffa0353954
0000000000000000 ffffffffa03538f5
Sep 9 10:01:47 filet kernel: [ 8451.102183] 0000000000000000 ffff8800b352ad40
ffff88013c009000 ffff88013e0aa000
Sep 9 10:01:47 filet kernel: [ 8451.102193] Call Trace:
Sep 9 10:01:47 filet kernel: [ 8451.102199] [<ffffffffa0353954>] ?
_nv003184rm+0x7b8/0x8a8 [nvidia]
Sep 9 10:01:47 filet kernel: [ 8451.102542] [<ffffffffa03538f5>] ?
_nv003184rm+0x759/0x8a8 [nvidia]
Sep 9 10:01:47 filet kernel: [ 8451.102885] [<ffffffffa03789d5>] ?
_nv006002rm+0x96/0xd4 [nvidia]
Sep 9 10:01:47 filet kernel: [ 8451.103221] [<ffffffffa01f8375>] ?
_nv003189rm+0x455/0x6fd [nvidia]
Sep 9 10:01:47 filet kernel: [ 8451.103544] [<ffffffffa03f745d>] ?
rm_ioctl+0x2f/0x67 [nvidia]
Sep 9 10:01:47 filet kernel: [ 8451.103876] [<ffffffffa04b4db3>] ?
nv_kern_ioctl+0x1b3/0x480 [nvidia]
Sep 9 10:01:47 filet kernel: [ 8451.104144] [<ffffffff80210807>] ?
__switch_to+0x3e7/0x490
Sep 9 10:01:47 filet kernel: [ 8451.104159] [<ffffffffa04b50bc>] ?
nv_kern_unlocked_ioctl+0x1c/0x20 [nvidia]
Sep 9 10:01:47 filet kernel: [ 8451.104425] [<ffffffff802f65e1>] ?
vfs_ioctl+0x31/0xa0
Sep 9 10:01:47 filet kernel: [ 8451.104434] [<ffffffff8069982c>] ?
thread_return+0x37/0x36b
Sep 9 10:01:47 filet kernel: [ 8451.104445] [<ffffffff802f6995>] ?
do_vfs_ioctl+0x75/0x230
Sep 9 10:01:47 filet kernel: [ 8451.104452] [<ffffffff802f6be9>] ?
sys_ioctl+0x99/0xa0
Sep 9 10:01:47 filet kernel: [ 8451.104459] [<ffffffff8069c2a9>] ?
do_device_not_available+0x9/0x10
Sep 9 10:01:47 filet kernel: [ 8451.104466] [<ffffffff8021253a>] ?
system_call_fastpath+0x16/0x1b
Sep 9 10:01:47 filet kernel: [ 8451.104473] Code: 00 00 00 48 8b 51 10 48 89
95 c0 00 00 00 48 89 da 48 03 95 c0 00 00 00 83 7d 34 00 48 0f 45 95 c0 00 00
00 48 89 95 c0 00 00 00 <49> 8b b4 24 28 01 00 00 48 39 de 48 0f 42 f3 49 8b 8c
24 30 01
Sep 9 10:01:47 filet kernel: [ 8451.104507] RIP [<ffffffffa01e0e4a>]
_nv012901rm+0x46e/0xc88 [nvidia]
Sep 9 10:01:47 filet kernel: [ 8451.104507] RSP <ffff88013d17bd38>
Sep 9 10:01:47 filet kernel: [ 8451.104507] CR2: 0000000000000128
Sep 9 10:01:47 filet kernel: [ 8451.104905] ---[ end trace 2f852d42058a2291
]---
--
System freeze: general protection fault or kernel NULL pointer dereference
https://bugs.launchpad.net/bugs/411956
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