Just got this again, randomly (while i was away from the computer in fact). Here's a potentially interesting stack trace:
[25249.328627] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [25249.328640] IP: [<ffffffff814317a4>] memcpy_toiovec+0x24/0x80 [25249.328657] PGD 76487067 PUD 7b5d5067 PMD 0 [25249.328666] Oops: 0000 [#1] SMP [25249.328672] last sysfs file: /sys/devices/virtual/net/pan0/statistics/collisions [25249.328678] CPU 1 [25249.328682] Modules linked in: binfmt_misc nvidia(P) bridge stp bnep snd_via82xx gameport snd_usb_audio snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_mpu401_uart snd_page_alloc snd_seq_dummy snd_usb_lib snd_seq_oss snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_hwdep snd_timer snd_seq_device gspca_zc3xx amd64_edac_mod iptable_filter gspca_main snd ppdev edac_core psmouse k8temp ip_tables parport_pc serio_raw i2c_viapro x_tables shpchp cm109 soundcore videodev v4l1_compat v4l2_compat_ioctl32 btusb lp parport dm_raid45 xor usbhid via_rhine mii sata_via [25249.328762] Pid: 1420, comm: Xorg Tainted: P 2.6.31-15-generic #50-Ubuntu K8T890-A [25249.328768] RIP: 0010:[<ffffffff814317a4>] [<ffffffff814317a4>] memcpy_toiovec+0x24/0x80 [25249.328779] RSP: 0018:ffff88007b47fbd8 EFLAGS: 00010202 [25249.328784] RAX: 0000000000000358 RBX: 0000000000000000 RCX: ffff8800331976b8 [25249.328789] RDX: 0000000000000358 RSI: ffff88007c06a800 RDI: 0000000000000000 [25249.328794] RBP: ffff88007b47fbf8 R08: 0000000000000000 R09: 0000000000000000 [25249.328799] R10: 0000000000000000 R11: 0000000000003246 R12: 0000000000000358 [25249.328804] R13: ffff88007c06a800 R14: 0000000000000358 R15: 0000000000001000 [25249.328811] FS: 00007f038714b6f0(0000) GS:ffff880001a14000(0000) knlGS:00000000f60eb700 [25249.328816] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [25249.328821] CR2: 0000000000000008 CR3: 000000007c561000 CR4: 00000000000006e0 [25249.328826] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [25249.328831] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [25249.328837] Process Xorg (pid: 1420, threadinfo ffff88007b47e000, task ffff88007b43ad60) [25249.328841] Stack: [25249.328844] ffff88006c137d00 ffff880040dd9e40 ffff88007b47fd08 0000000000000358 [25249.328852] <0> ffff88007b47fce8 ffffffff814b7add ffffffff81130160 0000000000100100 [25249.328861] <0> 0000000000000040 ffff880033197754 ffffffa1765719c0 ffff880033197600 [25249.328870] Call Trace: [25249.328882] [<ffffffff814b7add>] unix_stream_recvmsg+0x20d/0x570 [25249.328891] [<ffffffff81130160>] ? pollwake+0x0/0x60 [25249.328899] [<ffffffff81428b69>] sock_aio_read+0x149/0x150 [25249.328905] [<ffffffff81130160>] ? pollwake+0x0/0x60 [25249.328915] [<ffffffff81078b30>] ? autoremove_wake_function+0x0/0x40 [25249.328924] [<ffffffff8111f132>] do_sync_read+0xf2/0x130 [25249.328933] [<ffffffff8107c615>] ? __hrtimer_start_range_ns+0x185/0x350 [25249.328940] [<ffffffff81078b30>] ? autoremove_wake_function+0x0/0x40 [25249.328951] [<ffffffff81220a51>] ? security_file_permission+0x11/0x20 [25249.328959] [<ffffffff8111f7e1>] vfs_read+0x181/0x1a0 [25249.328966] [<ffffffff8111fd1c>] sys_read+0x4c/0x80 [25249.328976] [<ffffffff81012002>] system_call_fastpath+0x16/0x1b [25249.328980] Code: c9 c3 44 29 ea eb ab 55 85 d2 48 89 e5 41 56 41 55 49 89 f5 41 54 41 89 d4 53 48 89 fb 7f 0c eb 18 66 0f 1f 44 00 00 48 83 c3 10 <4c> 8b 73 08 4d 85 f6 75 13 45 85 e4 7f ee 31 c0 5b 41 5c 41 5d [25249.329040] RIP [<ffffffff814317a4>] memcpy_toiovec+0x24/0x80 [25249.329049] RSP <ffff88007b47fbd8> [25249.329052] CR2: 0000000000000008 [25249.329057] ---[ end trace e3ea1fc536a88f99 ]--- -- BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 https://bugs.launchpad.net/bugs/472695 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
