Comment 6 for bug 841259

I had the same problem -- virtualbox kept crashing "soon" -- (NOHZ=off seemed to help some, but I'm not sure if its real or anecdotal). I was running ubuntu 11.10 oneiric.

I updated to:
   3.0.0-17
   vbox 4.1.2

and it happens less often (I can get some work done) -- but still happens occassionally.

I left a virtual machine running for the last day just idle (running fedora 14) and it crashed again

This sequence seems to happen all the time
Apr 15 01:40:38 primergy kernel: [ 2477.761986] EXT4-fs (sda7): re-mounted. Opts: commit=0
Apr 15 01:40:38 primergy kernel: [ 2477.781680] EXT4-fs (sda12): re-mounted. Opts: commit=0
Apr 15 01:41:15 primergy kernel: [ 2514.947093] coretemp coretemp.0: TjMax is 105 C.
Apr 15 01:41:15 primergy kernel: [ 2514.947126] invalid opcode: 0000 [#1] SMP
Apr 15 01:41:15 primergy kernel: [ 2514.947130] CPU 1
Apr 15 01:41:15 primergy kernel: [ 2514.947131] Modules linked in: pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv bnep rfcomm bluetooth ibmaem ibmpex ipmi_msghandler ip6table_filter ip6_tables iptable_filter ip_tables x_tables speedstep_lib autofs4 vesafb kvm_intel kvm joydev microcode binfmt_misc nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc usbhid hid serio_raw sch5627 ppdev parport_pc coretemp lp parport e1000e [last unloaded: ipmi_devintf]
Apr 15 01:41:15 primergy kernel: [ 2514.947159]
Apr 15 01:41:15 primergy kernel: [ 2514.947161] Pid: 7469, comm: VirtualBox Not tainted 3.0.0-12-generic #20-Ubuntu FUJITSU PRIMERGY TX100 S2 /D2779
Apr 15 01:41:15 primergy kernel: [ 2514.947166] RIP: 0010:[<ffffffffa0335234>] [<ffffffffa0335234>] 0xffffffffa0335233
Apr 15 01:41:15 primergy kernel: [ 2514.947171] RSP: 0018:ffff880015ecdd88 EFLAGS: 00010246
Apr 15 01:41:15 primergy kernel: [ 2514.947173] RAX: 0000000000000000 RBX: ffffc9000229f000 RCX: 000000008005003b
Apr 15 01:41:15 primergy kernel: [ 2514.947174] RDX: ffffc9000229f900 RSI: ffffc9000229f000 RDI: 0000000011da0000
Apr 15 01:41:15 primergy kernel: [ 2514.947176] RBP: ffff880015ecddb8 R08: 0000000000b7d740 R09: 0000024ad7d6cbda
Apr 15 01:41:15 primergy kernel: [ 2514.947178] R10: 0000000000000000 R11: 0000000002393666 R12: ffffc90002284000
Apr 15 01:41:15 primergy kernel: [ 2514.947180] R13: ffffc9000229f900 R14: 0000000000000001 R15: 00007fc499755b00
Apr 15 01:41:15 primergy kernel: [ 2514.947181] FS: 00007fc47db98700(0000) GS:ffff88017bc80000(0000) knlGS:0000000000000000
Apr 15 01:41:15 primergy kernel: [ 2514.947183] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Apr 15 01:41:15 primergy kernel: [ 2514.947184] CR2: 000000000804c910 CR3: 0000000015d2f000 CR4: 00000000000006e0
Apr 15 01:41:15 primergy kernel: [ 2514.947186] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Apr 15 01:41:15 primergy kernel: [ 2514.947187] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Apr 15 01:41:15 primergy kernel: [ 2514.947189] Process VirtualBox (pid: 7469, threadinfo ffff880015ecc000, task ffff88015b6b8000)
Apr 15 01:41:15 primergy kernel: [ 2514.947190] Stack:
Apr 15 01:41:15 primergy kernel: [ 2514.947191] 0000000011da0000 ffffffffa033d2e1 0000000000000018 ffffc9000229f000
Apr 15 01:41:15 primergy kernel: [ 2514.947194] ffffc90002284000 ffffc9000229f900 ffff880015ecde08 ffffffffa0334af4
Apr 15 01:41:15 primergy kernel: [ 2514.947196] ffffc900022a1ff0 ffff880015ecde1c 0000000000000000 0000000099755b00
Apr 15 01:41:15 primergy kernel: [ 2514.947198] Call Trace:
Apr 15 01:41:15 primergy kernel: [ 2514.947207] [<ffffffff8104c83e>] ? perf_event_task_sched_out+0x2e/0xa0
Apr 15 01:41:15 primergy kernel: [ 2514.947221] [<ffffffffa02c899f>] ? supdrvIOCtlFast+0x7f/0xa0 [vboxdrv]
Apr 15 01:41:15 primergy kernel: [ 2514.947226] [<ffffffffa02c5379>] ? VBoxDrvLinuxIOCtl_4_1_12+0x49/0x200 [vboxdrv]
Apr 15 01:41:15 primergy kernel: [ 2514.947229] [<ffffffff81009702>] ? __switch_to+0x132/0x310
Apr 15 01:41:15 primergy kernel: [ 2514.947232] [<ffffffff8104e8ed>] ? set_next_entity+0x9d/0xb0
Apr 15 01:41:15 primergy kernel: [ 2514.947235] [<ffffffff8117939a>] ? do_vfs_ioctl+0x8a/0x340
Apr 15 01:41:15 primergy kernel: [ 2514.947239] [<ffffffff815e79b4>] ? schedule+0x3d4/0x770
Apr 15 01:41:15 primergy kernel: [ 2514.947241] [<ffffffff811796e1>] ? sys_ioctl+0x91/0xa0
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