Looks like this thread is related: http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/22152/ And here are the entries from patchwork: https://patchwork.kernel.org/patch/119206/ OOPS message is: [ 6.171529] Oops: 0002 [#1] SMP [ 6.171689] last sysfs file: /sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input3/name [ 6.171753] CPU 1 [ 6.171808] Modules linked in: lirc_ene0100(+) lirc_dev lp parport ahci sdhci_pci firewire_ohci firewire_core sdhci led_class libahci crc_itu_t pata_amd forcedeth [ 6.172709] [ 6.172766] Pid: 511, comm: modprobe Not tainted 2.6.35-6-generic #9-Ubuntu Fuquene/Aspire 5520 [ 6.172830] RIP: 0010:[] [] kfifo_alloc+0x2e/0xb0 [ 6.172946] RSP: 0018:ffff88009a579d08 EFLAGS: 00010286 [ 6.173005] RAX: ffff8800b9477000 RBX: 0000000000000000 RCX: ffffffff8107f229 [ 6.173067] RDX: 0000000000000000 RSI: 00000000000000d0 RDI: 0000000000000246 [ 6.173128] RBP: ffff88009a579d18 R08: 0000000000000000 R09: 0000000000000246 [ 6.173189] R10: 0000000000000030 R11: 0000000000000000 R12: 0000000000001000 [ 6.173251] R13: ffff88003787d800 R14: ffff8800bbc44c00 R15: 00000000fffffff4 [ 6.173313] FS: 00007f3022b1c700(0000) GS:ffff880001f00000(0000) knlGS:0000000000000000 [ 6.173376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6.173435] CR2: 0000000000000000 CR3: 000000009a43d000 CR4: 00000000000006e0 [ 6.173506] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6.173578] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 6.173649] Process modprobe (pid: 511, threadinfo ffff88009a578000, task ffff88009b2edb80) [ 6.173730] Stack: [ 6.173795] ffff88009abc7b40 ffff8800bbc58660 ffff88009a579d58 ffffffffa009ee4f [ 6.174020] <0> ffff88009a579d38 ffffffffa009f060 ffff88003787d800 ffffffffa009f580 [ 6.174357] <0> ffffffffa009f540 00000000fffffff4 ffff88009a579d98 ffffffff8132a475 [ 6.174755] Call Trace: [ 6.174825] [] ene_probe+0x17f/0x350 [lirc_ene0100] [ 6.174899] [] pnp_device_probe+0x95/0x100 [ 6.174971] [] ? driver_sysfs_add+0x62/0x90 [ 6.175041] [] really_probe+0x68/0x190 [ 6.175111] [] driver_probe_device+0x45/0x70 [ 6.175182] [] __driver_attach+0x9b/0xa0 [ 6.175252] [] ? __driver_attach+0x0/0xa0 [ 6.175322] [] bus_for_each_dev+0x68/0x90 [ 6.175392] [] driver_attach+0x1e/0x20 [ 6.175461] [] bus_add_driver+0xde/0x280 [ 6.175531] [] driver_register+0x80/0x150 [ 6.175603] [] ? ene_init+0x0/0x3e [lirc_ene0100] [ 6.175675] [] pnp_register_driver+0x21/0x30 [ 6.175746] [] ene_init+0x3c/0x3e [lirc_ene0100] [ 6.175819] [] do_one_initcall+0x3c/0x1a0 [ 6.175890] [] sys_init_module+0xbb/0x200 [ 6.175962] [] system_call_fastpath+0x16/0x1b [ 6.176032] Code: e5 41 54 53 0f 1f 44 00 00 48 89 fb 89 f7 41 89 f4 48 85 ff 48 8d 47 ff 74 33 48 85 f8 75 2e 89 d6 e8 b7 33 0c 00 48 85 c0 74 52 <48> 89 03 44 89 63 08 31 c0 c7 43 10 00 00 00 00 c7 43 0c 00 00 [ 6.179475] RIP [] kfifo_alloc+0x2e/0xb0 [ 6.179596] RSP [ 6.179662] CR2: 0000000000000000 [ 6.179763] ---[ end trace 0f811dc89fd018c0 ]---