May 10 15:39:02 andrei-vm2 kernel: [   32.917200] BUG: unable to handle kernel paging request at ffffffffffffffb8
May 10 15:39:02 andrei-vm2 kernel: [   32.917204] IP: [<ffffffffa0211319>] nfs_have_delegation+0x9/0x40 [nfs]
May 10 15:39:02 andrei-vm2 kernel: [   32.917215] PGD 1c05067 PUD 1c06067 PMD 0 
May 10 15:39:02 andrei-vm2 kernel: [   32.917218] Oops: 0000 [#1] SMP 
May 10 15:39:02 andrei-vm2 kernel: [   32.917220] CPU 0 
May 10 15:39:02 andrei-vm2 kernel: [   32.917220] Modules linked in: bnep rfcomm bluetooth vesafb nfsd nfs lockd fscache auth_rpcgss nfs_acl binfmt_misc snd_intel8x0 sunrpc snd_ac97_codec ac97_bus snd_pcm snd_seq_midi snd_rawmidi joydev snd_seq_midi_event snd_seq usbhid hid snd_timer snd_seq_device snd soundcore snd_page_alloc ppdev parport_pc psmouse serio_raw i2c_piix4 lp parport ahci libahci e1000
May 10 15:39:02 andrei-vm2 kernel: [   32.917234] 
May 10 15:39:02 andrei-vm2 kernel: [   32.917236] Pid: 1374, comm: gnome-keyring-d Not tainted 3.0.0-19-generic #33-Ubuntu innotek GmbH VirtualBox
May 10 15:39:02 andrei-vm2 kernel: [   32.917238] RIP: 0010:[<ffffffffa0211319>]  [<ffffffffa0211319>] nfs_have_delegation+0x9/0x40 [nfs]
May 10 15:39:02 andrei-vm2 kernel: [   32.917245] RSP: 0018:ffff880115433de8  EFLAGS: 00010246
May 10 15:39:02 andrei-vm2 kernel: [   32.917246] RAX: 00000000ffffd8ca RBX: 00000000ffffd8ca RCX: 00000000000057fa
May 10 15:39:02 andrei-vm2 kernel: [   32.917247] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
May 10 15:39:02 andrei-vm2 kernel: [   32.917248] RBP: ffff880115433de8 R08: ffffea0003d1e148 R09: ffffffffa0204838
May 10 15:39:02 andrei-vm2 kernel: [   32.917249] R10: 0000000000000000 R11: 0000000000000001 R12: ffff880115468800
May 10 15:39:02 andrei-vm2 kernel: [   32.917261] R13: ffff880115433e68 R14: ffff880117275300 R15: ffff880115c24800
May 10 15:39:02 andrei-vm2 kernel: [   32.917263] FS:  00007f56f4130800(0000) GS:ffff88011fc00000(0000) knlGS:0000000000000000
May 10 15:39:02 andrei-vm2 kernel: [   32.917264] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
May 10 15:39:02 andrei-vm2 kernel: [   32.917265] CR2: ffffffffffffffb8 CR3: 0000000117aed000 CR4: 00000000000006f0
May 10 15:39:02 andrei-vm2 kernel: [   32.917270] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
May 10 15:39:02 andrei-vm2 kernel: [   32.917272] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
May 10 15:39:02 andrei-vm2 kernel: [   32.917273] Process gnome-keyring-d (pid: 1374, threadinfo ffff880115432000, task ffff8801166e0000)
May 10 15:39:02 andrei-vm2 kernel: [   32.917274] Stack:
May 10 15:39:02 andrei-vm2 kernel: [   32.917275]  ffff880115433e38 ffffffffa0200981 ffff8801169c9a88 0000000000000000
May 10 15:39:02 andrei-vm2 kernel: [   32.917277]  ffff8801169c9a88 ffff880117275300 ffff880114d36450 0000000000000006
May 10 15:39:02 andrei-vm2 kernel: [   32.917279]  ffff880115433e68 00000000fffffff5 ffff880115433eb8 ffffffffa0204f98
May 10 15:39:02 andrei-vm2 kernel: [   32.917281] Call Trace:
May 10 15:39:02 andrei-vm2 kernel: [   32.917288]  [<ffffffffa0200981>] nfs4_handle_exception+0x231/0x2c0 [nfs]
May 10 15:39:02 andrei-vm2 kernel: [   32.917304]  [<ffffffffa0204f98>] nfs4_proc_lock+0xe8/0x200 [nfs]
May 10 15:39:02 andrei-vm2 kernel: [   32.917308]  [<ffffffffa01e64cd>] do_setlk+0xed/0x110 [nfs]
May 10 15:39:02 andrei-vm2 kernel: [   32.917311]  [<ffffffffa01e6579>] nfs_flock+0x89/0xe0 [nfs]
May 10 15:39:02 andrei-vm2 kernel: [   32.917315]  [<ffffffff811b092d>] sys_flock+0x10d/0x1c0
May 10 15:39:02 andrei-vm2 kernel: [   32.917318]  [<ffffffff815fc642>] system_call_fastpath+0x16/0x1b
May 10 15:39:02 andrei-vm2 kernel: [   32.917319] Code: 8b 65 e0 4c 8b 6d e8 4c 8b 75 f0 4c 8b 7d f8 c9 c3 90 55 48 89 e5 66 66 66 66 90 3e 80 4f 48 04 5d c3 55 48 89 e5 66 66 66 66 90 
May 10 15:39:02 andrei-vm2 kernel: [   32.917339] RIP  [<ffffffffa0211319>] nfs_have_delegation+0x9/0x40 [nfs]
May 10 15:39:02 andrei-vm2 kernel: [   32.917345]  RSP <ffff880115433de8>
May 10 15:39:02 andrei-vm2 kernel: [   32.917345] CR2: ffffffffffffffb8
May 10 15:39:02 andrei-vm2 kernel: [   32.917347] ---[ end trace 8a4df94818dc830d ]---