tail /var/log/kern.log: Oct 30 07:22:19 mythbox kernel: [26712.906419] general protection fault: 0000 [#58] SMP Oct 30 07:22:19 mythbox kernel: [26712.906423] CPU 0 Oct 30 07:22:19 mythbox kernel: [26712.906424] Modules linked in: vesafb vboxsf(O) lirc_zilog(C) lirc_dev joydev hid_generic ppdev snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm usbhid snd_seq_midi snd_rawmidi snd_seq_midi_event parport_pc hid snd_seq hdpvr v4l2_common videodev snd_timer snd_seq_device mac_hid snd psmouse soundcore snd_page_alloc microcode serio_raw i2c_piix4 lp vboxguest(O) parport e1000 Oct 30 07:22:19 mythbox kernel: [26712.906444] Oct 30 07:22:19 mythbox kernel: [26712.906446] Pid: 4386, comm: PT95 Tainted: G D WC O 3.5.0-17-generic #28-Ubuntu innotek GmbH VirtualBox/VirtualBox Oct 30 07:22:19 mythbox kernel: [26712.906448] RIP: 0010:[] [] __kmalloc+0x80/0x170 Oct 30 07:22:19 mythbox kernel: [26712.906455] RSP: 0018:ffff880040461dd8 EFLAGS: 00010206 Oct 30 07:22:19 mythbox kernel: [26712.906456] RAX: 0000000000000000 RBX: 0000000000002000 RCX: 0000000000000085 Oct 30 07:22:19 mythbox kernel: [26712.906457] RDX: 0000000000000084 RSI: 0000000000000000 RDI: 0000000000016920 Oct 30 07:22:19 mythbox kernel: [26712.906458] RBP: ffff880040461e18 R08: ffff88007fc16920 R09: ffffffffa01dedb7 Oct 30 07:22:19 mythbox kernel: [26712.906459] R10: 00007f788c0cd850 R11: 0000000000000297 R12: 55d83ff935471e30 Oct 30 07:22:19 mythbox kernel: [26712.906460] R13: 00000000000000d0 R14: 0000000000002000 R15: ffff88007d002e00 Oct 30 07:22:19 mythbox kernel: [26712.906462] FS: 00007f7835d75700(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000 Oct 30 07:22:19 mythbox kernel: [26712.906463] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Oct 30 07:22:19 mythbox kernel: [26712.906465] CR2: 00007f788c114050 CR3: 000000007a1d7000 CR4: 00000000000006f0 Oct 30 07:22:19 mythbox kernel: [26712.906470] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Oct 30 07:22:19 mythbox kernel: [26712.906471] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Oct 30 07:22:19 mythbox kernel: [26712.906473] Process PT95 (pid: 4386, threadinfo ffff880040460000, task ffff88004040ae00) Oct 30 07:22:19 mythbox kernel: [26712.906473] Stack: Oct 30 07:22:19 mythbox kernel: [26712.906474] ffffffffa01dedb7 ffffffff8112ab0b ffff880040461e08 0000000000002000 Oct 30 07:22:19 mythbox kernel: [26712.906477] 00000000000015a6 ffff880040461eb8 ffff880040461ec0 00007f788c0cd850 Oct 30 07:22:19 mythbox kernel: [26712.906480] ffff880040461e68 ffffffffa01dedb7 ffff88007a318c10 ffffffffa01e314e Oct 30 07:22:19 mythbox kernel: [26712.906482] Call Trace: Oct 30 07:22:19 mythbox kernel: [26712.906488] [] ? alloc_bounce_buffer+0x57/0x120 [vboxsf] Oct 30 07:22:19 mythbox kernel: [26712.906492] [] ? free_compound_page+0x1b/0x20 Oct 30 07:22:19 mythbox kernel: [26712.906495] [] alloc_bounce_buffer+0x57/0x120 [vboxsf] Oct 30 07:22:19 mythbox kernel: [26712.906497] [] sf_reg_read+0x8f/0x140 [vboxsf] Oct 30 07:22:19 mythbox kernel: [26712.906501] [] ? security_file_permission+0x92/0xb0 Oct 30 07:22:19 mythbox kernel: [26712.906504] [] vfs_read+0xa9/0x180 Oct 30 07:22:19 mythbox kernel: [26712.906505] [] sys_read+0x4a/0x90 Oct 30 07:22:19 mythbox kernel: [26712.906509] [] system_call_fastpath+0x16/0x1b Oct 30 07:22:19 mythbox kernel: [26712.906510] Code: 4c 8b 4d c0 4d 8b 07 65 4c 03 04 25 48 dc 00 00 49 8b 50 08 4d 8b 20 4d 85 e4 0f 84 90 00 00 00 49 63 47 20 49 8b 3f 48 8d 4a 01 <49> 8b 1c 04 4c 89 e0 48 8d 37 e8 81 76 1c 00 84 c0 74 c6 49 63 Oct 30 07:22:19 mythbox kernel: [26712.906544] RIP [] __kmalloc+0x80/0x170 Oct 30 07:22:19 mythbox kernel: [26712.906547] RSP Oct 30 07:22:19 mythbox kernel: [26712.906550] ---[ end trace 81119bdfbe630fbb ]--- Oct 30 07:22:20 mythbox kernel: [26713.850130] general protection fault: 0000 [#59] SMP Oct 30 07:22:20 mythbox kernel: [26713.850136] CPU 0 Oct 30 07:22:20 mythbox kernel: [26713.850137] Modules linked in: vesafb vboxsf(O) lirc_zilog(C) lirc_dev joydev hid_generic ppdev snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm usbhid snd_seq_midi snd_rawmidi snd_seq_midi_event parport_pc hid snd_seq hdpvr v4l2_common videodev snd_timer snd_seq_device mac_hid snd psmouse soundcore snd_page_alloc microcode serio_raw i2c_piix4 lp vboxguest(O) parport e1000 Oct 30 07:22:20 mythbox kernel: [26713.850157] Oct 30 07:22:20 mythbox kernel: [26713.850159] Pid: 4343, comm: PT90 Tainted: G D WC O 3.5.0-17-generic #28-Ubuntu innotek GmbH VirtualBox/VirtualBox Oct 30 07:22:20 mythbox kernel: [26713.850161] RIP: 0010:[] [] __kmalloc+0x80/0x170 Oct 30 07:22:20 mythbox kernel: [26713.850168] RSP: 0018:ffff88007918fdd8 EFLAGS: 00010206 Oct 30 07:22:20 mythbox kernel: [26713.850169] RAX: 0000000000000000 RBX: 0000000000002000 RCX: 0000000000000085 Oct 30 07:22:20 mythbox kernel: [26713.850170] RDX: 0000000000000084 RSI: 0000000000000000 RDI: 0000000000016920 Oct 30 07:22:20 mythbox kernel: [26713.850172] RBP: ffff88007918fe18 R08: ffff88007fc16920 R09: ffffffffa01dedb7 Oct 30 07:22:20 mythbox kernel: [26713.850173] R10: 00007f789015f200 R11: 0000000000000297 R12: 55d83ff935471e30 Oct 30 07:22:20 mythbox kernel: [26713.850174] R13: 00000000000000d0 R14: 0000000000002000 R15: ffff88007d002e00 Oct 30 07:22:20 mythbox kernel: [26713.850176] FS: 00007f78a17fa700(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000 Oct 30 07:22:20 mythbox kernel: [26713.850177] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Oct 30 07:22:20 mythbox kernel: [26713.850178] CR2: 00007f78901d1030 CR3: 000000007a1d7000 CR4: 00000000000006f0 Oct 30 07:22:20 mythbox kernel: [26713.850183] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Oct 30 07:22:20 mythbox kernel: [26713.850185] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Oct 30 07:22:20 mythbox kernel: [26713.850186] Process PT90 (pid: 4343, threadinfo ffff88007918e000, task ffff880057ddae00) Oct 30 07:22:20 mythbox kernel: [26713.850187] Stack: Oct 30 07:22:20 mythbox kernel: [26713.850188] ffffffffa01dedb7 ffffffff8112ab0b ffff88007918fe08 0000000000002000 Oct 30 07:22:20 mythbox kernel: [26713.850191] 0000000000001d5c ffff88007918feb8 ffff88007918fec0 00007f789015f200 Oct 30 07:22:20 mythbox kernel: [26713.850193] ffff88007918fe68 ffffffffa01dedb7 ffff88007aff0810 ffffffffa01e314e Oct 30 07:22:20 mythbox kernel: [26713.850196] Call Trace: Oct 30 07:22:20 mythbox kernel: [26713.850201] [] ? alloc_bounce_buffer+0x57/0x120 [vboxsf] Oct 30 07:22:20 mythbox kernel: [26713.850205] [] ? free_compound_page+0x1b/0x20 Oct 30 07:22:20 mythbox kernel: [26713.850208] [] alloc_bounce_buffer+0x57/0x120 [vboxsf] Oct 30 07:22:20 mythbox kernel: [26713.850211] [] sf_reg_read+0x8f/0x140 [vboxsf] Oct 30 07:22:20 mythbox kernel: [26713.850215] [] ? security_file_permission+0x92/0xb0 Oct 30 07:22:20 mythbox kernel: [26713.850217] [] vfs_read+0xa9/0x180 Oct 30 07:22:20 mythbox kernel: [26713.850219] [] sys_read+0x4a/0x90 Oct 30 07:22:20 mythbox kernel: [26713.850223] [] system_call_fastpath+0x16/0x1b Oct 30 07:22:20 mythbox kernel: [26713.850224] Code: 4c 8b 4d c0 4d 8b 07 65 4c 03 04 25 48 dc 00 00 49 8b 50 08 4d 8b 20 4d 85 e4 0f 84 90 00 00 00 49 63 47 20 49 8b 3f 48 8d 4a 01 <49> 8b 1c 04 4c 89 e0 48 8d 37 e8 81 76 1c 00 84 c0 74 c6 49 63 Oct 30 07:22:20 mythbox kernel: [26713.850248] RIP [] __kmalloc+0x80/0x170 Oct 30 07:22:20 mythbox kernel: [26713.850250] RSP Oct 30 07:22:20 mythbox kernel: [26713.850253] ---[ end trace 81119bdfbe630fbc ]--- Oct 30 07:25:19 mythbox kernel: [26892.603712] general protection fault: 0000 [#60] SMP Oct 30 07:25:19 mythbox kernel: [26892.603717] CPU 0 Oct 30 07:25:19 mythbox kernel: [26892.603718] Modules linked in: vesafb vboxsf(O) lirc_zilog(C) lirc_dev joydev hid_generic ppdev snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm usbhid snd_seq_midi snd_rawmidi snd_seq_midi_event parport_pc hid snd_seq hdpvr v4l2_common videodev snd_timer snd_seq_device mac_hid snd psmouse soundcore snd_page_alloc microcode serio_raw i2c_piix4 lp vboxguest(O) parport e1000 Oct 30 07:25:19 mythbox kernel: [26892.603737] Oct 30 07:25:19 mythbox kernel: [26892.603739] Pid: 1743, comm: xfwm4 Tainted: G D WC O 3.5.0-17-generic #28-Ubuntu innotek GmbH VirtualBox/VirtualBox Oct 30 07:25:19 mythbox kernel: [26892.603741] RIP: 0010:[] [] __kmalloc_node_track_caller+0x10b/0x1b0 Oct 30 07:25:19 mythbox kernel: [26892.603748] RSP: 0018:ffff88005df0da58 EFLAGS: ======================================= Virtualbox details: ? General Name: Mythbuntu-12.04.1 Clone 2 OS Type: Ubuntu (64 bit) ? System Base Memory: 2048 MB Processor(s): 4 Execution Cap: 100% Boot Order: Floppy, CD/DVD-ROM, Hard Disk VT-x/AMD-V: Enabled Nested Paging: Enabled ? Display Video Memory: 12 MB 3D Acceleration: Enabled 2D Video Acceleration: Disabled Remote Desktop Server: Disabled ? Storage IDE Controller IDE Secondary Master (CD/DVD): VBoxGuestAdditions.iso (52.65 MB) SATA Controller SATA Port 0: Mythbuntu-12.04.1 Clone 2.vdi (Normal, 8.00 GB) ? Audio Host Driver: Windows DirectSound Controller: ICH AC97 ? Network Adapter 1: Intel PRO/1000 MT Desktop (Bridged adapter, Realtek PCIe GBE Family Controller) ? Serial Ports Disabled ? USB Device Filters: 1 (1 active) ? Shared Folders Shared Folders: 3