Comment 4 for bug 961880

This , together with brightness control break ZFS for linux. P9 and P8 motherboards have ben confirmed to be affacted.

Please fix or revert.

Part of dump: (linked in mopdules -> ZFS)

Mar 31 00:41:33 Pollux kernel: [ 14.827281] input: Eee PC WMI hotkeys as /devices/platform/eeepc-wmi/input/input5
Mar 31 00:41:33 Pollux kernel: [ 14.828033] BUG: unable to handle kernel NULL pointer dereference at (null)
Mar 31 00:41:33 Pollux kernel: [ 14.828040] IP: [<ffffffffa02a0d08>] asus_wmi_rfkill_init+0x188/0x200 [asus_wmi]
Mar 31 00:41:33 Pollux kernel: [ 14.828048] PGD 7e9484067 PUD 7e9486067 PMD 0
Mar 31 00:41:33 Pollux kernel: [ 14.828053] Oops: 0000 [#1] SMP
Mar 31 00:41:33 Pollux kernel: [ 14.828057] CPU 1
Mar 31 00:41:33 Pollux kernel: [ 14.828058] Modules linked in: snd_timer(+) ttm eeepc_wmi(+) drm_kms_helper asus_wmi drm snd psmouse sb_edac lp btusb sparse_keymap mxm_wmi serio_raw edac_core bluetooth soundcore mei(C) snd_page_alloc i2c_algo_bit mac_hid wmi parport usbhid hid zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) e1000e mvsas libsas arcmsr scsi_transport_sas spl(O) zlib_deflate

rest: http://pastebin.com/73d54Zpp

More people mentioning this:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/969576