The oops's in bug 625295 and bug 615789 correspond to the oops I'm seeing: Sep 10 12:26:58 major kernel: [ 1724.099559] PGD 1ed737067 PUD 1ed454067 PMD 0 Sep 10 12:26:58 major kernel: [ 1724.099573] CPU 7 Sep 10 12:26:58 major kernel: [ 1724.099575] Modules linked in: ip6table_filter ip6_tables binfmt_misc dm_crypt ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp kvm_intel kvm snd_hda_codec_atihdmi snd_hda_codec_via snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device ppdev parport_pc snd soundcore snd_page_alloc lp parport radeon ttm usbhid r8169 firewire_ohci usb_storage hid firewire_core mii drm_kms_helper pata_via crc_itu_t drm i2c_algo_bit configfs Sep 10 12:26:58 major kernel: [ 1724.099633] Sep 10 12:26:58 major kernel: [ 1724.099638] Pid: 3168, comm: lshw Not tainted 2.6.35-20-generic #29-Ubuntu P55M Pro/To Be Filled By O.E.M. Sep 10 12:26:58 major kernel: [ 1724.099643] RIP: 0010:[] [] fb_open+0x6e/0x1f0 Sep 10 12:26:58 major kernel: [ 1724.099650] RSP: 0018:ffff8801ed671bf8 EFLAGS: 00010246 Sep 10 12:26:58 major kernel: [ 1724.099654] RAX: 0000000000000505 RBX: 0000000000000001 RCX: ffffffffffffffff Sep 10 12:26:58 major kernel: [ 1724.099658] RDX: ffff8801ed4c9900 RSI: ffff8801ed4c9900 RDI: ffffffff81cf33e8 Sep 10 12:26:58 major kernel: [ 1724.099661] RBP: ffff8801ed671c48 R08: ffff8801ed4c9240 R09: ffff8801ff285900 Sep 10 12:26:58 major kernel: [ 1724.099665] R10: ffff880237c043e0 R11: 0000000000000000 R12: ffff88020ff7f2d0 Sep 10 12:26:58 major kernel: [ 1724.099669] R13: ffff8801ed4c9900 R14: 0000000000000000 R15: 0000000000000001 Sep 10 12:26:58 major kernel: [ 1724.099673] FS: 00007f4a6512d720(0000) GS:ffff880001fc0000(0000) knlGS:0000000000000000 Sep 10 12:26:58 major kernel: [ 1724.099678] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 10 12:26:58 major kernel: [ 1724.099681] CR2: 0000000000000008 CR3: 00000001fd861000 CR4: 00000000000006e0 Sep 10 12:26:58 major kernel: [ 1724.099685] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Sep 10 12:26:58 major kernel: [ 1724.099689] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Sep 10 12:26:58 major kernel: [ 1724.099693] Process lshw (pid: 3168, threadinfo ffff8801ed670000, task ffff8801ed570000) Sep 10 12:26:58 major kernel: [ 1724.099698] 000000000000001d ffff8801ed671c74 ffff88022ed9b280 ffff88022ec40000 Sep 10 12:26:58 major kernel: [ 1724.099704] <0> 0000000000000000 0000000000000000 ffff88022ed9b280 0000000000000000 Sep 10 12:26:58 major kernel: [ 1724.099710] <0> ffffffff81ce6340 ffff88020ff7f2d0 ffff8801ed671ca8 ffffffff8115685a Sep 10 12:26:58 major kernel: [ 1724.099725] [] chrdev_open+0x10a/0x200 Sep 10 12:26:58 major kernel: [ 1724.099731] [] ? chrdev_open+0x0/0x200 Sep 10 12:26:58 major kernel: [ 1724.099737] [] __dentry_open+0xe5/0x330 Sep 10 12:26:58 major kernel: [ 1724.099745] [] ? security_inode_permission+0x1f/0x30 Sep 10 12:26:58 major kernel: [ 1724.099752] [] nameidata_to_filp+0x54/0x70 Sep 10 12:26:58 major kernel: [ 1724.099758] [] finish_open+0xe8/0x1d0 Sep 10 12:26:58 major kernel: [ 1724.099764] [] ? dput+0xdf/0x1b0 Sep 10 12:26:58 major kernel: [ 1724.099768] [] do_last+0x86/0x460 Sep 10 12:26:58 major kernel: [ 1724.099773] [] do_filp_open+0x21b/0x660 Sep 10 12:26:58 major kernel: [ 1724.099779] [] ? putname+0x35/0x50 Sep 10 12:26:58 major kernel: [ 1724.099783] [] ? sys_mknodat+0x12b/0x250 Sep 10 12:26:58 major kernel: [ 1724.099790] [] ? alloc_fd+0x10a/0x150 Sep 10 12:26:58 major kernel: [ 1724.099795] [] do_sys_open+0x69/0x170 Sep 10 12:26:58 major kernel: [ 1724.099801] [] sys_open+0x20/0x30 Sep 10 12:26:58 major kernel: [ 1724.099808] [] system_call_fastpath+0x16/0x1b Sep 10 12:26:58 major kernel: [ 1724.099864] RSP Sep 10 12:26:58 major kernel: [ 1724.099870] ---[ end trace 7e917f8bebefbcac ]---