[ 28.569703] sky2 0000:02:00.0 eth0: enabling interface [ 28.570067] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 28.571751] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 28.575526] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled [ 28.578628] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0 [ 28.675324] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled [ 28.678426] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0 [ 28.713840] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 28.715035] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 31.651813] wlan0: authenticate with 20:aa:4b:a9:ea:17 [ 31.654307] wlan0: send auth to 20:aa:4b:a9:ea:17 (try 1/3) [ 31.656129] wlan0: authenticated [ 31.660057] wlan0: associate with 20:aa:4b:a9:ea:17 (try 1/3) [ 31.666016] wlan0: RX AssocResp from 20:aa:4b:a9:ea:17 (capab=0x411 status=0 aid=2) [ 31.669136] wlan0: associated [ 31.669176] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 55.829054] audit_printk_skb: 150 callbacks suppressed [ 55.829058] type=1400 audit(1466386503.292:68): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=1791 comm="apparmor_parser" [ 55.829066] type=1400 audit(1466386503.292:69): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=1791 comm="apparmor_parser" [ 55.829556] type=1400 audit(1466386503.292:70): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=1791 comm="apparmor_parser" [ 60.892056] Corrupted low memory at ffff88000000be38 (be38 phys) = b036000400000000 [ 60.892065] ------------[ cut here ]------------ [ 60.892072] WARNING: CPU: 0 PID: 128 at /build/linux-r4w0bv/linux-3.13.0/arch/x86/kernel/check.c:140 check_for_bios_corruption+0x10f/0x120() [ 60.892073] Memory corruption detected in low memory [ 60.892075] Modules linked in: ctr ccm bnep rfcomm bluetooth binfmt_misc snd_hda_codec_hdmi uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev arc4 iwldvm mac80211 snd_hda_codec_realtek iwlwifi snd_hda_intel joydev snd_hda_codec serio_raw snd_hwdep snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq lpc_ich r592 snd_seq_device memstick snd_timer snd radeon cfg80211 ttm drm_kms_helper drm soundcore i2c_algo_bit shpchp parport_pc ppdev coretemp mac_hid lp parport sony_laptop video sdhci_pci firewire_ohci psmouse sdhci firewire_core crc_itu_t ahci libahci sky2 [ 60.892119] CPU: 0 PID: 128 Comm: kworker/0:2 Not tainted 3.13.0-88-generic #135-Ubuntu [ 60.892121] Hardware name: Sony Corporation VGN-NW21MF_W/VAIO, BIOS R1120Y4 08/20/2009 [ 60.892123] Workqueue: events check_corruption [ 60.892125] 0000000000000000 ffff880036adbd28 ffffffff81729966 ffff880036adbd70 [ 60.892129] 0000000000000009 ffff880036adbd60 ffffffff8106982d 0000000000000000 [ 60.892131] ffff880000010000 ffffffff81eb4250 0000000000000001 ffff880000000000 [ 60.892135] Call Trace: [ 60.892140] [] dump_stack+0x64/0x82 [ 60.892144] [] warn_slowpath_common+0x7d/0xa0 [ 60.892147] [] warn_slowpath_fmt+0x4c/0x50 [ 60.892149] [] check_for_bios_corruption+0x10f/0x120 [ 60.892152] [] check_corruption+0xe/0x40 [ 60.892155] [] process_one_work+0x178/0x470 [ 60.892158] [] worker_thread+0x121/0x410 [ 60.892161] [] ? rescuer_thread+0x430/0x430 [ 60.892164] [] kthread+0xc9/0xe0 [ 60.892167] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 60.892170] [] ret_from_fork+0x58/0x90 [ 60.892173] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 60.892175] ---[ end trace f8ac0492429d98d8 ]--- [ 2167.780435] perf samples too long (2502 > 2500), lowering kernel.perf_event_max_sample_rate to 50000 [ 3381.853316] wlan0: deauthenticated from 20:aa:4b:a9:ea:17 (Reason: 7) [ 3381.884355] cfg80211: Calling CRDA to update world regulatory domain [ 3381.890324] cfg80211: World regulatory domain updated: [ 3381.890330] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 3381.890335] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3381.890339] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3381.890342] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 3381.890346] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3381.890350] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3397.280360] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3510.526887] iwlwifi 0000:03:00.0: RF_KILL bit toggled to disable radio. [ 3510.564051] iwlwifi 0000:03:00.0: Not sending command - RF KILL [ 3519.027014] iwlwifi 0000:03:00.0: RF_KILL bit toggled to enable radio. [ 3519.043938] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled [ 3519.047345] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0 [ 3519.147882] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled [ 3519.150997] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0 [ 3519.199049] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3522.137320] wlan0: authenticate with 20:aa:4b:a9:ea:17 [ 3522.142165] wlan0: send auth to 20:aa:4b:a9:ea:17 (try 1/3) [ 3522.151971] wlan0: authenticated [ 3522.156048] wlan0: associate with 20:aa:4b:a9:ea:17 (try 1/3) [ 3522.177677] wlan0: RX AssocResp from 20:aa:4b:a9:ea:17 (capab=0x411 status=0 aid=2) [ 3522.198279] wlan0: associated [ 3522.198334] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 3560.241598] iwlwifi 0000:03:00.0: RF_KILL bit toggled to disable radio. [ 3560.241672] wlan0: deauthenticating from 20:aa:4b:a9:ea:17 by local choice (reason=3) [ 3560.241715] iwlwifi 0000:03:00.0: Not sending command - RF KILL [ 3560.241719] wlan0: HW problem - can not stop rx aggregation for 20:aa:4b:a9:ea:17 tid 0 [ 3560.241786] iwlwifi 0000:03:00.0: Not sending command - RF KILL [ 3560.241791] wlan0: failed to remove key (0, 20:aa:4b:a9:ea:17) from hardware (-5) [ 3560.241950] iwlwifi 0000:03:00.0: Not sending command - RF KILL [ 3560.241959] iwlwifi 0000:03:00.0: Not sending command - RF KILL [ 3560.241967] iwlwifi 0000:03:00.0: Not sending command - RF KILL [ 3560.241976] iwlwifi 0000:03:00.0: Not sending command - RF KILL [ 3560.242007] iwlwifi 0000:03:00.0: Not sending command - RF KILL [ 3560.242018] iwlwifi 0000:03:00.0: Not sending command - RF KILL [ 3560.242355] iwlwifi 0000:03:00.0: Not sending command - RF KILL [ 3560.242362] wlan0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from hardware (-5) [ 3560.280050] iwlwifi 0000:03:00.0: Not sending command - RF KILL [ 3560.280943] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3560.281731] cfg80211: Calling CRDA to update world regulatory domain [ 3560.284664] cfg80211: World regulatory domain updated: [ 3560.284670] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 3560.284672] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3560.284674] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3560.284676] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 3560.284678] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3560.284680] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3561.258231] iwlwifi 0000:03:00.0: RF_KILL bit toggled to enable radio. [ 3561.275486] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled [ 3561.278640] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0 [ 3561.375796] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled [ 3561.378916] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0 [ 3561.412206] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3567.057245] wlan0: authenticate with 20:aa:4b:a9:ea:17 [ 3567.061421] wlan0: send auth to 20:aa:4b:a9:ea:17 (try 1/3) [ 3567.069055] wlan0: authenticated [ 3567.072088] wlan0: associate with 20:aa:4b:a9:ea:17 (try 1/3) [ 3567.075618] wlan0: RX AssocResp from 20:aa:4b:a9:ea:17 (capab=0x411 status=0 aid=2) [ 3567.077343] wlan0: associated [ 3567.077386] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 3567.110438] wlan0: deauthenticating from 20:aa:4b:a9:ea:17 by local choice (reason=2) [ 3567.113367] wlan0: authenticate with 20:aa:4b:a9:ea:17 [ 3567.118413] wlan0: send auth to 20:aa:4b:a9:ea:17 (try 1/3) [ 3567.118878] cfg80211: Calling CRDA to update world regulatory domain [ 3567.121808] wlan0: authenticated [ 3567.122346] cfg80211: World regulatory domain updated: [ 3567.122349] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 3567.122352] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3567.122354] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3567.122356] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 3567.122358] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3567.122360] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 3567.124119] wlan0: associate with 20:aa:4b:a9:ea:17 (try 1/3) [ 3567.127663] wlan0: RX AssocResp from 20:aa:4b:a9:ea:17 (capab=0x411 status=0 aid=2) [ 3567.133822] wlan0: associated