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[Bug 1247681] Re: IEEE 802.11 driver crash

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Borph <1247681@xxxxxxxxxxxxxxxxxx>
Date: Wed, 04 Dec 2013 21:24:36 -0000
Reply-to: Bug 1247681 <1247681@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Some news:

1. I don't suspect anymore that VirtualBox is related, well but cannot be sure.
2. I also installed 3.13 (vmlinuz-3.13.0-031300rc1-generic), but the bug still appeared. But the difference is that the connection was recovering. So "firmware error detected" stayed, but the crashes in the driver disappeared (I think, I have to verify).

Re-post of the crashes just happened 5mins ago:
peter@lenovo:~$ uname -a
Linux lenovo 3.11.0-14-generic #21-Ubuntu SMP Tue Nov 12 17:04:55 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

<endless part of log with iwlwifi errors>
Dec  4 22:12:11 lenovo kernel: [ 6426.387562] iwlwifi 0000:02:00.0: Firmware error during reconfiguration! Abort.
Dec  4 22:12:11 lenovo kernel: [ 6426.387569] iwlwifi 0000:02:00.0: FW error in SYNC CMD MAC_CONTEXT_CMD
Dec  4 22:12:11 lenovo kernel: [ 6426.387576] CPU: 0 PID: 22444 Comm: kworker/0:1 Tainted: GF         IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:12:11 lenovo kernel: [ 6426.387580] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:12:11 lenovo kernel: [ 6426.387614] Workqueue: events ieee80211_restart_work [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.387619]  00000000000001f4 ffff880212575b48 ffffffff816e593a ffff88024f474000
Dec  4 22:12:11 lenovo kernel: [ 6426.387628]  ffff880212575bb0 ffffffffa04251bf ffff880212575b70 0000000000000000
Dec  4 22:12:11 lenovo kernel: [ 6426.387634]  ffff8801ea7eddc0 ffffffff81085580 ffff880212575b78 ffff880212575b78
Dec  4 22:12:11 lenovo kernel: [ 6426.387641] Call Trace:
Dec  4 22:12:11 lenovo kernel: [ 6426.387654]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:12:11 lenovo kernel: [ 6426.387678]  [<ffffffffa04251bf>] iwl_trans_pcie_send_hcmd+0x53f/0x5d0 [iwlwifi]
Dec  4 22:12:11 lenovo kernel: [ 6426.387686]  [<ffffffff81085580>] ? wake_up_atomic_t+0x30/0x30
Dec  4 22:12:11 lenovo kernel: [ 6426.387702]  [<ffffffffa0617fe2>] iwl_mvm_send_cmd+0x32/0xb0 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.387716]  [<ffffffffa06180a1>] iwl_mvm_send_cmd_pdu+0x41/0x50 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.387727]  [<ffffffffa0616548>] iwl_mvm_mac_ctxt_send_cmd+0x28/0x60 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.387738]  [<ffffffffa0617318>] iwl_mvm_mac_ctxt_cmd_station+0xd8/0x140 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.387749]  [<ffffffffa06174f3>] iwl_mvm_mac_ctx_send+0x53/0x90 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.387760]  [<ffffffffa0617c80>] iwl_mvm_mac_ctxt_add+0x20/0x90 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.387770]  [<ffffffffa0614275>] iwl_mvm_mac_add_interface+0xa5/0x270 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.387802]  [<ffffffffa0572bdb>] ieee80211_reconfig+0x57b/0x13f0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.387820]  [<ffffffffa05491f7>] ieee80211_restart_work+0x87/0xa0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.387827]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:12:11 lenovo kernel: [ 6426.387834]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:12:11 lenovo kernel: [ 6426.387840]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:12:11 lenovo kernel: [ 6426.387849]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:12:11 lenovo kernel: [ 6426.387857]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.387864]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:12:11 lenovo kernel: [ 6426.387872]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.387878] iwlwifi 0000:02:00.0: Failed to send MAC context (action:1): -5
Dec  4 22:12:11 lenovo kernel: [ 6426.387982] iwlwifi 0000:02:00.0: PHY ctxt cmd error. ret=-5
Dec  4 22:12:11 lenovo kernel: [ 6426.387986] iwlwifi 0000:02:00.0: Failed to add PHY context
Dec  4 22:12:11 lenovo kernel: [ 6426.387989] ------------[ cut here ]------------
Dec  4 22:12:11 lenovo kernel: [ 6426.388015] WARNING: CPU: 0 PID: 22444 at /build/buildd/linux-3.11.0/net/mac80211/util.c:1509 ieee80211_reconfig+0x10f3/0x13f0 [mac80211]()
Dec  4 22:12:11 lenovo kernel: [ 6426.388018] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:12:11 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:12:11 lenovo kernel: [ 6426.388130] CPU: 0 PID: 22444 Comm: kworker/0:1 Tainted: GF         IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:12:11 lenovo kernel: [ 6426.388133] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:12:11 lenovo kernel: [ 6426.388148] Workqueue: events ieee80211_restart_work [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.388151]  0000000000000009 ffff880212575d40 ffffffff816e593a 0000000000000000
Dec  4 22:12:11 lenovo kernel: [ 6426.388158]  ffff880212575d78 ffffffff81061dbd ffff88020aa13840 0000000000000000
Dec  4 22:12:11 lenovo kernel: [ 6426.388164]  ffff8802522f34b0 ffff8802522f2600 00000000fffffffb ffff880212575d88
Dec  4 22:12:11 lenovo kernel: [ 6426.388170] Call Trace:
Dec  4 22:12:11 lenovo kernel: [ 6426.388177]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:12:11 lenovo kernel: [ 6426.388187]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:12:11 lenovo kernel: [ 6426.388194]  [<ffffffff81061e9a>] warn_slowpath_null+0x1a/0x20
Dec  4 22:12:11 lenovo kernel: [ 6426.388219]  [<ffffffffa0573753>] ieee80211_reconfig+0x10f3/0x13f0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.388237]  [<ffffffffa05491f7>] ieee80211_restart_work+0x87/0xa0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.388243]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:12:11 lenovo kernel: [ 6426.388249]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:12:11 lenovo kernel: [ 6426.388255]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:12:11 lenovo kernel: [ 6426.388263]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:12:11 lenovo kernel: [ 6426.388271]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.388277]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:12:11 lenovo kernel: [ 6426.388284]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.388288] ---[ end trace fb2630dcabca5892 ]---
Dec  4 22:12:11 lenovo kernel: [ 6426.388295] iwlwifi 0000:02:00.0: Failed to send binding (action:1): -5
Dec  4 22:12:11 lenovo kernel: [ 6426.388298] ------------[ cut here ]------------
Dec  4 22:12:11 lenovo kernel: [ 6426.388309] WARNING: CPU: 0 PID: 22444 at /build/buildd/linux-3.11.0/drivers/net/wireless/iwlwifi/mvm/mac80211.c:1005 iwl_mvm_mac_sta_state+0x27c/0x290 [iwlmvm]()
Dec  4 22:12:11 lenovo kernel: [ 6426.388311] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:12:11 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:12:11 lenovo kernel: [ 6426.388407] CPU: 0 PID: 22444 Comm: kworker/0:1 Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:12:11 lenovo kernel: [ 6426.388410] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:12:11 lenovo kernel: [ 6426.388425] Workqueue: events ieee80211_restart_work [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.388428]  0000000000000009 ffff880212575ce0 ffffffff816e593a 0000000000000000
Dec  4 22:12:11 lenovo kernel: [ 6426.388434]  ffff880212575d18 ffffffff81061dbd ffff8802522f37a0 0000000000000000
Dec  4 22:12:11 lenovo kernel: [ 6426.388440]  0000000000000001 ffff8802512b11c0 0000000000000001 ffff880212575d28
Dec  4 22:12:11 lenovo kernel: [ 6426.388446] Call Trace:
Dec  4 22:12:11 lenovo kernel: [ 6426.388453]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:12:11 lenovo kernel: [ 6426.388460]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:12:11 lenovo kernel: [ 6426.388467]  [<ffffffff81061e9a>] warn_slowpath_null+0x1a/0x20
Dec  4 22:12:11 lenovo kernel: [ 6426.388478]  [<ffffffffa06139dc>] iwl_mvm_mac_sta_state+0x27c/0x290 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.388500]  [<ffffffffa0572d26>] ieee80211_reconfig+0x6c6/0x13f0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.388517]  [<ffffffffa05491f7>] ieee80211_restart_work+0x87/0xa0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.388524]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:12:11 lenovo kernel: [ 6426.388529]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:12:11 lenovo kernel: [ 6426.388536]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:12:11 lenovo kernel: [ 6426.388543]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:12:11 lenovo kernel: [ 6426.388551]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.388556]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:12:11 lenovo kernel: [ 6426.388563]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.388567] ---[ end trace fb2630dcabca5893 ]---
Dec  4 22:12:11 lenovo kernel: [ 6426.388569] ------------[ cut here ]------------
Dec  4 22:12:11 lenovo kernel: [ 6426.388589] WARNING: CPU: 0 PID: 22444 at /build/buildd/linux-3.11.0/net/mac80211/util.c:1538 ieee80211_reconfig+0x1234/0x13f0 [mac80211]()
Dec  4 22:12:11 lenovo kernel: [ 6426.388592] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:12:11 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:12:11 lenovo kernel: [ 6426.388686] CPU: 0 PID: 22444 Comm: kworker/0:1 Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:12:11 lenovo kernel: [ 6426.388689] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:12:11 lenovo kernel: [ 6426.388705] Workqueue: events ieee80211_restart_work [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.388708]  0000000000000009 ffff880212575d40 ffffffff816e593a 0000000000000000
Dec  4 22:12:11 lenovo kernel: [ 6426.388718]  ffff880212575d78 ffffffff81061dbd ffff8802512b0800 0000000000000000
Dec  4 22:12:11 lenovo kernel: [ 6426.388727]  00000000ffffffea ffff8802522f2600 0000000000000001 ffff880212575d88
Dec  4 22:12:11 lenovo kernel: [ 6426.388736] Call Trace:
Dec  4 22:12:11 lenovo kernel: [ 6426.388745]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:12:11 lenovo kernel: [ 6426.388754]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:12:11 lenovo kernel: [ 6426.388763]  [<ffffffff81061e9a>] warn_slowpath_null+0x1a/0x20
Dec  4 22:12:11 lenovo kernel: [ 6426.388791]  [<ffffffffa0573894>] ieee80211_reconfig+0x1234/0x13f0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.388813]  [<ffffffffa05491f7>] ieee80211_restart_work+0x87/0xa0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.388821]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:12:11 lenovo kernel: [ 6426.388829]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:12:11 lenovo kernel: [ 6426.388837]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:12:11 lenovo kernel: [ 6426.388846]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:12:11 lenovo kernel: [ 6426.388856]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.388864]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:12:11 lenovo kernel: [ 6426.388874]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.388879] ---[ end trace fb2630dcabca5894 ]---
Dec  4 22:12:11 lenovo kernel: [ 6426.388884] ------------[ cut here ]------------
Dec  4 22:12:11 lenovo kernel: [ 6426.388913] WARNING: CPU: 0 PID: 22444 at /build/buildd/linux-3.11.0/net/mac80211/util.c:1538 ieee80211_reconfig+0x1234/0x13f0 [mac80211]()
Dec  4 22:12:11 lenovo kernel: [ 6426.388917] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:12:11 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:12:11 lenovo kernel: [ 6426.389018] CPU: 0 PID: 22444 Comm: kworker/0:1 Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:12:11 lenovo kernel: [ 6426.389021] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:12:11 lenovo kernel: [ 6426.389036] Workqueue: events ieee80211_restart_work [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389039]  0000000000000009 ffff880212575d40 ffffffff816e593a 0000000000000000
Dec  4 22:12:11 lenovo kernel: [ 6426.389045]  ffff880212575d78 ffffffff81061dbd ffff8802512b0800 0000000000000001
Dec  4 22:12:11 lenovo kernel: [ 6426.389051]  00000000ffffffea ffff8802522f2600 0000000000000002 ffff880212575d88
Dec  4 22:12:11 lenovo kernel: [ 6426.389057] Call Trace:
Dec  4 22:12:11 lenovo kernel: [ 6426.389064]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:12:11 lenovo kernel: [ 6426.389072]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:12:11 lenovo kernel: [ 6426.389079]  [<ffffffff81061e9a>] warn_slowpath_null+0x1a/0x20
Dec  4 22:12:11 lenovo kernel: [ 6426.389099]  [<ffffffffa0573894>] ieee80211_reconfig+0x1234/0x13f0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389116]  [<ffffffffa05491f7>] ieee80211_restart_work+0x87/0xa0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389122]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:12:11 lenovo kernel: [ 6426.389128]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:12:11 lenovo kernel: [ 6426.389134]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:12:11 lenovo kernel: [ 6426.389141]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:12:11 lenovo kernel: [ 6426.389149]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.389154]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:12:11 lenovo kernel: [ 6426.389162]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.389165] ---[ end trace fb2630dcabca5895 ]---
Dec  4 22:12:11 lenovo kernel: [ 6426.389167] ------------[ cut here ]------------
Dec  4 22:12:11 lenovo kernel: [ 6426.389186] WARNING: CPU: 0 PID: 22444 at /build/buildd/linux-3.11.0/net/mac80211/util.c:1538 ieee80211_reconfig+0x1234/0x13f0 [mac80211]()
Dec  4 22:12:11 lenovo kernel: [ 6426.389188] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:12:11 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:12:11 lenovo kernel: [ 6426.389281] CPU: 0 PID: 22444 Comm: kworker/0:1 Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:12:11 lenovo kernel: [ 6426.389284] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:12:11 lenovo kernel: [ 6426.389299] Workqueue: events ieee80211_restart_work [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389302]  0000000000000009 ffff880212575d40 ffffffff816e593a 0000000000000000
Dec  4 22:12:11 lenovo kernel: [ 6426.389308]  ffff880212575d78 ffffffff81061dbd ffff8802512b0800 0000000000000002
Dec  4 22:12:11 lenovo kernel: [ 6426.389314]  00000000ffffffea ffff8802522f2600 0000000000000003 ffff880212575d88
Dec  4 22:12:11 lenovo kernel: [ 6426.389320] Call Trace:
Dec  4 22:12:11 lenovo kernel: [ 6426.389326]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:12:11 lenovo kernel: [ 6426.389333]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:12:11 lenovo kernel: [ 6426.389340]  [<ffffffff81061e9a>] warn_slowpath_null+0x1a/0x20
Dec  4 22:12:11 lenovo kernel: [ 6426.389359]  [<ffffffffa0573894>] ieee80211_reconfig+0x1234/0x13f0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389377]  [<ffffffffa05491f7>] ieee80211_restart_work+0x87/0xa0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389383]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:12:11 lenovo kernel: [ 6426.389389]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:12:11 lenovo kernel: [ 6426.389394]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:12:11 lenovo kernel: [ 6426.389402]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:12:11 lenovo kernel: [ 6426.389409]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.389415]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:12:11 lenovo kernel: [ 6426.389422]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.389426] ---[ end trace fb2630dcabca5896 ]---
Dec  4 22:12:11 lenovo kernel: [ 6426.389428] ------------[ cut here ]------------
Dec  4 22:12:11 lenovo kernel: [ 6426.389446] WARNING: CPU: 0 PID: 22444 at /build/buildd/linux-3.11.0/net/mac80211/util.c:1538 ieee80211_reconfig+0x1234/0x13f0 [mac80211]()
Dec  4 22:12:11 lenovo kernel: [ 6426.389448] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:12:11 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:12:11 lenovo kernel: [ 6426.389541] CPU: 0 PID: 22444 Comm: kworker/0:1 Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:12:11 lenovo kernel: [ 6426.389544] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:12:11 lenovo kernel: [ 6426.389559] Workqueue: events ieee80211_restart_work [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389562]  0000000000000009 ffff880212575d40 ffffffff816e593a 0000000000000000
Dec  4 22:12:11 lenovo kernel: [ 6426.389568]  ffff880212575d78 ffffffff81061dbd ffff8802512b0800 0000000000000003
Dec  4 22:12:11 lenovo kernel: [ 6426.389574]  00000000ffffffea ffff8802522f2600 0000000000000004 ffff880212575d88
Dec  4 22:12:11 lenovo kernel: [ 6426.389580] Call Trace:
Dec  4 22:12:11 lenovo kernel: [ 6426.389586]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:12:11 lenovo kernel: [ 6426.389593]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:12:11 lenovo kernel: [ 6426.389600]  [<ffffffff81061e9a>] warn_slowpath_null+0x1a/0x20
Dec  4 22:12:11 lenovo kernel: [ 6426.389619]  [<ffffffffa0573894>] ieee80211_reconfig+0x1234/0x13f0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389636]  [<ffffffffa05491f7>] ieee80211_restart_work+0x87/0xa0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389642]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:12:11 lenovo kernel: [ 6426.389648]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:12:11 lenovo kernel: [ 6426.389654]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:12:11 lenovo kernel: [ 6426.389661]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:12:11 lenovo kernel: [ 6426.389669]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.389674]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:12:11 lenovo kernel: [ 6426.389681]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.389685] ---[ end trace fb2630dcabca5897 ]---
Dec  4 22:12:11 lenovo kernel: [ 6426.389690] ------------[ cut here ]------------
Dec  4 22:12:11 lenovo kernel: [ 6426.389702] WARNING: CPU: 0 PID: 22444 at /build/buildd/linux-3.11.0/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c:1049 iwl_mvm_mac_ctxt_changed+0x6e/0x80 [iwlmvm]()
Dec  4 22:12:11 lenovo kernel: [ 6426.389706] Changing inactive MAC 0c:8b:fd:6d:5d:1c/2
Dec  4 22:12:11 lenovo kernel: [ 6426.389708] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:12:11 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:12:11 lenovo kernel: [ 6426.389801] CPU: 0 PID: 22444 Comm: kworker/0:1 Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:12:11 lenovo kernel: [ 6426.389803] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:12:11 lenovo kernel: [ 6426.389818] Workqueue: events ieee80211_restart_work [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389821]  0000000000000009 ffff880212575c50 ffffffff816e593a ffff880212575c98
Dec  4 22:12:11 lenovo kernel: [ 6426.389827]  ffff880212575c88 ffffffff81061dbd ffff8802522f37a0 ffff8802512b11c0
Dec  4 22:12:11 lenovo kernel: [ 6426.389833]  ffff8802522f37e0 00000000001674ff ffff8802522f37b0 ffff880212575ce8
Dec  4 22:12:11 lenovo kernel: [ 6426.389839] Call Trace:
Dec  4 22:12:11 lenovo kernel: [ 6426.389845]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:12:11 lenovo kernel: [ 6426.389853]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:12:11 lenovo kernel: [ 6426.389860]  [<ffffffff81061e2c>] warn_slowpath_fmt+0x4c/0x50
Dec  4 22:12:11 lenovo kernel: [ 6426.389874]  [<ffffffffa0617d5e>] iwl_mvm_mac_ctxt_changed+0x6e/0x80 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.389884]  [<ffffffffa061462b>] iwl_mvm_bss_info_changed+0xcb/0x290 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.389902]  [<ffffffffa054abd7>] ieee80211_bss_info_change_notify+0x97/0x1c0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389923]  [<ffffffffa05730f4>] ieee80211_reconfig+0xa94/0x13f0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389940]  [<ffffffffa05491f7>] ieee80211_restart_work+0x87/0xa0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.389947]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:12:11 lenovo kernel: [ 6426.389952]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:12:11 lenovo kernel: [ 6426.389958]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:12:11 lenovo kernel: [ 6426.389966]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:12:11 lenovo kernel: [ 6426.389973]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.389978]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:12:11 lenovo kernel: [ 6426.389986]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:12:11 lenovo kernel: [ 6426.389989] ---[ end trace fb2630dcabca5898 ]---
Dec  4 22:12:11 lenovo kernel: [ 6426.389994] iwlwifi 0000:02:00.0: failed to update MAC 0c:8b:fd:6d:5d:1c
Dec  4 22:12:11 lenovo kernel: [ 6426.389999] iwlwifi 0000:02:00.0: failed to update power mode
Dec  4 22:12:11 lenovo kernel: [ 6426.390084] iwlwifi 0000:02:00.0: set key failed
Dec  4 22:12:11 lenovo kernel: [ 6426.390089] iwlwifi 0000:02:00.0: Failed to find station id
Dec  4 22:12:11 lenovo kernel: [ 6426.390092] iwlwifi 0000:02:00.0: set key failed
Dec  4 22:12:11 lenovo kernel: [ 6426.390096] iwlwifi 0000:02:00.0: Failed to find station id
Dec  4 22:12:11 lenovo kernel: [ 6426.390099] iwlwifi 0000:02:00.0: set key failed
Dec  4 22:12:11 lenovo kernel: [ 6426.390128] iwlwifi 0000:02:00.0: Failed to send quota: -5
Dec  4 22:12:11 lenovo kernel: [ 6426.390132] iwlwifi 0000:02:00.0: Failed to update quotas after restart (-5)
Dec  4 22:12:11 lenovo kernel: [ 6426.452683] ------------[ cut here ]------------
Dec  4 22:12:11 lenovo kernel: [ 6426.452707] WARNING: CPU: 1 PID: 2772 at /build/buildd/linux-3.11.0/drivers/net/wireless/iwlwifi/pcie/tx.c:1623 iwl_trans_pcie_tx+0x7c0/0x7e0 [iwlwifi]()
Dec  4 22:12:11 lenovo kernel: [ 6426.452709] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:12:11 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:12:11 lenovo kernel: [ 6426.452775] CPU: 1 PID: 2772 Comm: Chrome_IOThread Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:12:11 lenovo kernel: [ 6426.452777] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:12:11 lenovo kernel: [ 6426.452779]  0000000000000009 ffff8802143db698 ffffffff816e593a 0000000000000000
Dec  4 22:12:11 lenovo kernel: [ 6426.452784]  ffff8802143db6d0 ffffffff81061dbd ffff88024db59160 0000000000000002
Dec  4 22:12:11 lenovo kernel: [ 6426.452788]  000000000000001a ffff880133de60d2 ffff880002698180 ffff8802143db6e0
Dec  4 22:12:11 lenovo kernel: [ 6426.452792] Call Trace:
Dec  4 22:12:11 lenovo kernel: [ 6426.452800]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:12:11 lenovo kernel: [ 6426.452805]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:12:11 lenovo kernel: [ 6426.452809]  [<ffffffff81061e9a>] warn_slowpath_null+0x1a/0x20
Dec  4 22:12:11 lenovo kernel: [ 6426.452818]  [<ffffffffa0425a10>] iwl_trans_pcie_tx+0x7c0/0x7e0 [iwlwifi]
Dec  4 22:12:11 lenovo kernel: [ 6426.452836]  [<ffffffffa055ecc4>] ? ieee80211_get_tkip_p2k+0x84/0xa0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.452845]  [<ffffffffa0619f51>] iwl_mvm_tx_skb+0x141/0x350 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.452851]  [<ffffffffa061452c>] iwl_mvm_mac_tx+0x7c/0xb0 [iwlmvm]
Dec  4 22:12:11 lenovo kernel: [ 6426.452865]  [<ffffffffa056b135>] __ieee80211_tx+0x125/0x350 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.452877]  [<ffffffffa056d4cf>] ieee80211_tx+0xbf/0xf0 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.452889]  [<ffffffffa056d6ed>] ieee80211_xmit+0x9d/0x100 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.452900]  [<ffffffffa056e6a4>] ieee80211_subif_start_xmit+0xc24/0xd80 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.452912]  [<ffffffffa0560000>] ? mpath_set_pinfo+0x120/0x140 [mac80211]
Dec  4 22:12:11 lenovo kernel: [ 6426.452916]  [<ffffffff815f0ac8>] dev_hard_start_xmit+0x318/0x560
Dec  4 22:12:11 lenovo kernel: [ 6426.452921]  [<ffffffff8160e2f6>] sch_direct_xmit+0xe6/0x1c0
Dec  4 22:12:11 lenovo kernel: [ 6426.452924]  [<ffffffff815f0f11>] dev_queue_xmit+0x201/0x4c0
Dec  4 22:12:11 lenovo kernel: [ 6426.452928]  [<ffffffff81627a19>] ip_finish_output+0x2c9/0x3b0
Dec  4 22:12:11 lenovo kernel: [ 6426.452933]  [<ffffffff810925c5>] ? check_preempt_curr+0x85/0xa0
Dec  4 22:12:11 lenovo kernel: [ 6426.452937]  [<ffffffff81628df8>] ip_output+0x58/0x90
Dec  4 22:12:11 lenovo kernel: [ 6426.452940]  [<ffffffff81628555>] ip_local_out+0x25/0x30
Dec  4 22:12:11 lenovo kernel: [ 6426.452944]  [<ffffffff816288ad>] ip_queue_xmit+0x13d/0x3e0
Dec  4 22:12:11 lenovo kernel: [ 6426.452948]  [<ffffffff8163f673>] tcp_transmit_skb+0x463/0x8c0
Dec  4 22:12:11 lenovo kernel: [ 6426.452952]  [<ffffffff8163fc76>] tcp_write_xmit+0x1a6/0xb70
Dec  4 22:12:11 lenovo kernel: [ 6426.452956]  [<ffffffff816408ae>] __tcp_push_pending_frames+0x2e/0xc0
Dec  4 22:12:11 lenovo kernel: [ 6426.452959]  [<ffffffff81631d65>] tcp_sendmsg+0x115/0xd80
Dec  4 22:12:11 lenovo kernel: [ 6426.452964]  [<ffffffff8165b1f4>] inet_sendmsg+0x64/0xb0
Dec  4 22:12:11 lenovo kernel: [ 6426.452969]  [<ffffffff81316847>] ? apparmor_socket_sendmsg+0x17/0x20
Dec  4 22:12:11 lenovo kernel: [ 6426.452972]  [<ffffffff815d6d87>] sock_aio_write+0x137/0x150
Dec  4 22:12:11 lenovo kernel: [ 6426.452977]  [<ffffffff811a6640>] do_sync_write+0x80/0xb0
Dec  4 22:12:11 lenovo kernel: [ 6426.452981]  [<ffffffff811a6e75>] vfs_write+0x1b5/0x1e0
Dec  4 22:12:11 lenovo kernel: [ 6426.452984]  [<ffffffff811a6c47>] ? vfs_read+0xf7/0x170
Dec  4 22:12:11 lenovo kernel: [ 6426.452987]  [<ffffffff811a77b9>] SyS_write+0x49/0xa0
Dec  4 22:12:11 lenovo kernel: [ 6426.452992]  [<ffffffff816f571d>] system_call_fastpath+0x1a/0x1f
Dec  4 22:12:11 lenovo kernel: [ 6426.452994] ---[ end trace fb2630dcabca5899 ]---
Dec  4 22:12:26 lenovo kernel: [ 6441.431156] iwlwifi 0000:02:00.0: Scan failed! status 0x1 ret -5
Dec  4 22:14:14 lenovo wpa_supplicant[1100]: rfkill: WLAN soft blocked
Dec  4 22:14:14 lenovo kernel: [ 6549.100730] wlan0: deauthenticating from 00:24:fe:04:e9:85 by local choice (reason=3)
Dec  4 22:14:14 lenovo kernel: [ 6549.101021] ------------[ cut here ]------------
Dec  4 22:14:14 lenovo kernel: [ 6549.101069] WARNING: CPU: 0 PID: 4 at /build/buildd/linux-3.11.0/net/mac80211/sta_info.c:831 __sta_info_destroy+0x1be/0x360 [mac80211]()
Dec  4 22:14:14 lenovo kernel: [ 6549.101074] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:14:14 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:14:14 lenovo kernel: [ 6549.101254] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:14:14 lenovo kernel: [ 6549.101260] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:14:14 lenovo kernel: [ 6549.101274] Workqueue: events rfkill_op_handler
Dec  4 22:14:14 lenovo kernel: [ 6549.101280]  0000000000000009 ffff8802539f1950 ffffffff816e593a 0000000000000000
Dec  4 22:14:14 lenovo kernel: [ 6549.101293]  ffff8802539f1988 ffffffff81061dbd ffff8802522f2600 ffff8802512b0800
Dec  4 22:14:14 lenovo kernel: [ 6549.101304]  ffff8802522f2820 ffff8802522f2858 ffff880121a5c000 ffff8802539f1998
Dec  4 22:14:14 lenovo kernel: [ 6549.101315] Call Trace:
Dec  4 22:14:14 lenovo kernel: [ 6549.101331]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:14:14 lenovo kernel: [ 6549.101344]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:14:14 lenovo kernel: [ 6549.101356]  [<ffffffff81061e9a>] warn_slowpath_null+0x1a/0x20
Dec  4 22:14:14 lenovo kernel: [ 6549.101389]  [<ffffffffa054eabe>] __sta_info_destroy+0x1be/0x360 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101420]  [<ffffffffa054eda5>] sta_info_flush_defer+0x85/0xb0 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101465]  [<ffffffffa05869bf>] ieee80211_set_disassoc+0xaf/0x3d0 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101506]  [<ffffffffa058abe3>] ieee80211_mgd_deauth+0x1d3/0x240 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101542]  [<ffffffffa0560598>] ieee80211_deauth+0x18/0x20 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101582]  [<ffffffffa03c476c>] cfg80211_mlme_deauth+0x9c/0x140 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101617]  [<ffffffffa03c4a1b>] cfg80211_mlme_down+0x6b/0x90 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101652]  [<ffffffffa03c867b>] cfg80211_disconnect+0x18b/0x1a0 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101685]  [<ffffffffa03ad5cc>] ? __cfg80211_stop_sched_scan+0x1c/0x130 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101713]  [<ffffffffa03a49f4>] cfg80211_leave+0xc4/0xe0 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101742]  [<ffffffffa03a4dab>] cfg80211_netdev_notifier_call+0x39b/0x610 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101754]  [<ffffffff81658558>] ? inetdev_event+0x38/0x510
Dec  4 22:14:14 lenovo kernel: [ 6549.101766]  [<ffffffff810925c5>] ? check_preempt_curr+0x85/0xa0
Dec  4 22:14:14 lenovo kernel: [ 6549.101776]  [<ffffffff810925f9>] ? ttwu_do_wakeup+0x19/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.101790]  [<ffffffff816f0f6c>] notifier_call_chain+0x4c/0x70
Dec  4 22:14:14 lenovo kernel: [ 6549.101801]  [<ffffffff8108a006>] raw_notifier_call_chain+0x16/0x20
Dec  4 22:14:14 lenovo kernel: [ 6549.101814]  [<ffffffff815ea5a5>] call_netdevice_notifiers_info+0x35/0x60
Dec  4 22:14:14 lenovo kernel: [ 6549.101824]  [<ffffffff815ea699>] __dev_close_many+0x49/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.101835]  [<ffffffff815ea83b>] dev_close_many+0x8b/0x100
Dec  4 22:14:14 lenovo kernel: [ 6549.101846]  [<ffffffff815ec2d4>] dev_close.part.62+0x44/0x80
Dec  4 22:14:14 lenovo kernel: [ 6549.101857]  [<ffffffff815ec331>] dev_close+0x21/0x30
Dec  4 22:14:14 lenovo kernel: [ 6549.101917]  [<ffffffffa03a4695>] cfg80211_rfkill_set_block.part.7+0x35/0x80 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101946]  [<ffffffffa03a46f9>] cfg80211_rfkill_set_block+0x19/0x20 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.101958]  [<ffffffff816ced90>] rfkill_set_block+0x90/0x140
Dec  4 22:14:14 lenovo kernel: [ 6549.101969]  [<ffffffff816cee8e>] __rfkill_switch_all+0x4e/0x70
Dec  4 22:14:14 lenovo kernel: [ 6549.101980]  [<ffffffff816cfaf3>] rfkill_switch_all+0x53/0x60
Dec  4 22:14:14 lenovo kernel: [ 6549.101991]  [<ffffffff816d00cf>] rfkill_op_handler+0x10f/0x1a0
Dec  4 22:14:14 lenovo kernel: [ 6549.102002]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:14:14 lenovo kernel: [ 6549.102012]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:14:14 lenovo kernel: [ 6549.102021]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:14:14 lenovo kernel: [ 6549.102033]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.102045]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:14:14 lenovo kernel: [ 6549.102055]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:14:14 lenovo kernel: [ 6549.102066]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:14:14 lenovo kernel: [ 6549.102073] ---[ end trace fb2630dcabca589a ]---
Dec  4 22:14:14 lenovo kernel: [ 6549.102079] ------------[ cut here ]------------
Dec  4 22:14:14 lenovo kernel: [ 6549.102108] WARNING: CPU: 0 PID: 4 at /build/buildd/linux-3.11.0/net/mac80211/sta_info.c:839 __sta_info_destroy+0x265/0x360 [mac80211]()
Dec  4 22:14:14 lenovo kernel: [ 6549.102112] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:14:14 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:14:14 lenovo kernel: [ 6549.102279] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:14:14 lenovo kernel: [ 6549.102284] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:14:14 lenovo kernel: [ 6549.102294] Workqueue: events rfkill_op_handler
Dec  4 22:14:14 lenovo kernel: [ 6549.102299]  0000000000000009 ffff8802539f1950 ffffffff816e593a 0000000000000000
Dec  4 22:14:14 lenovo kernel: [ 6549.102310]  ffff8802539f1988 ffffffff81061dbd ffff8802522f2600 ffff8802512b0800
Dec  4 22:14:14 lenovo kernel: [ 6549.102321]  ffff8802512b0800 00000000ffffffea ffff880121a5c000 ffff8802539f1998
Dec  4 22:14:14 lenovo kernel: [ 6549.102332] Call Trace:
Dec  4 22:14:14 lenovo kernel: [ 6549.102343]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:14:14 lenovo kernel: [ 6549.102354]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:14:14 lenovo kernel: [ 6549.102365]  [<ffffffff81061e9a>] warn_slowpath_null+0x1a/0x20
Dec  4 22:14:14 lenovo kernel: [ 6549.102394]  [<ffffffffa054eb65>] __sta_info_destroy+0x265/0x360 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102424]  [<ffffffffa054eda5>] sta_info_flush_defer+0x85/0xb0 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102466]  [<ffffffffa05869bf>] ieee80211_set_disassoc+0xaf/0x3d0 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102505]  [<ffffffffa058abe3>] ieee80211_mgd_deauth+0x1d3/0x240 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102540]  [<ffffffffa0560598>] ieee80211_deauth+0x18/0x20 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102576]  [<ffffffffa03c476c>] cfg80211_mlme_deauth+0x9c/0x140 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102609]  [<ffffffffa03c4a1b>] cfg80211_mlme_down+0x6b/0x90 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102644]  [<ffffffffa03c867b>] cfg80211_disconnect+0x18b/0x1a0 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102677]  [<ffffffffa03ad5cc>] ? __cfg80211_stop_sched_scan+0x1c/0x130 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102705]  [<ffffffffa03a49f4>] cfg80211_leave+0xc4/0xe0 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102733]  [<ffffffffa03a4dab>] cfg80211_netdev_notifier_call+0x39b/0x610 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102745]  [<ffffffff81658558>] ? inetdev_event+0x38/0x510
Dec  4 22:14:14 lenovo kernel: [ 6549.102756]  [<ffffffff810925c5>] ? check_preempt_curr+0x85/0xa0
Dec  4 22:14:14 lenovo kernel: [ 6549.102765]  [<ffffffff810925f9>] ? ttwu_do_wakeup+0x19/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.102778]  [<ffffffff816f0f6c>] notifier_call_chain+0x4c/0x70
Dec  4 22:14:14 lenovo kernel: [ 6549.102789]  [<ffffffff8108a006>] raw_notifier_call_chain+0x16/0x20
Dec  4 22:14:14 lenovo kernel: [ 6549.102800]  [<ffffffff815ea5a5>] call_netdevice_notifiers_info+0x35/0x60
Dec  4 22:14:14 lenovo kernel: [ 6549.102811]  [<ffffffff815ea699>] __dev_close_many+0x49/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.102821]  [<ffffffff815ea83b>] dev_close_many+0x8b/0x100
Dec  4 22:14:14 lenovo kernel: [ 6549.102833]  [<ffffffff815ec2d4>] dev_close.part.62+0x44/0x80
Dec  4 22:14:14 lenovo kernel: [ 6549.102844]  [<ffffffff815ec331>] dev_close+0x21/0x30
Dec  4 22:14:14 lenovo kernel: [ 6549.102879]  [<ffffffffa03a4695>] cfg80211_rfkill_set_block.part.7+0x35/0x80 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102936]  [<ffffffffa03a46f9>] cfg80211_rfkill_set_block+0x19/0x20 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.102975]  [<ffffffff816ced90>] rfkill_set_block+0x90/0x140
Dec  4 22:14:14 lenovo kernel: [ 6549.103011]  [<ffffffff816cee8e>] __rfkill_switch_all+0x4e/0x70
Dec  4 22:14:14 lenovo kernel: [ 6549.103047]  [<ffffffff816cfaf3>] rfkill_switch_all+0x53/0x60
Dec  4 22:14:14 lenovo kernel: [ 6549.103070]  [<ffffffff816d00cf>] rfkill_op_handler+0x10f/0x1a0
Dec  4 22:14:14 lenovo kernel: [ 6549.103080]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:14:14 lenovo kernel: [ 6549.103090]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:14:14 lenovo kernel: [ 6549.103100]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:14:14 lenovo kernel: [ 6549.103111]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.103123]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:14:14 lenovo kernel: [ 6549.103132]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:14:14 lenovo kernel: [ 6549.103143]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:14:14 lenovo kernel: [ 6549.103150] ---[ end trace fb2630dcabca589b ]---
Dec  4 22:14:14 lenovo kernel: [ 6549.103330] iwlwifi 0000:02:00.0: failed to update MAC 0c:8b:fd:6d:5d:1c
Dec  4 22:14:14 lenovo kernel: [ 6549.103343] iwlwifi 0000:02:00.0: failed to update power mode
Dec  4 22:14:14 lenovo kernel: [ 6549.103365] iwlwifi 0000:02:00.0: failed to update MAC 0c:8b:fd:6d:5d:1c
Dec  4 22:14:14 lenovo kernel: [ 6549.103387] ------------[ cut here ]------------
Dec  4 22:14:14 lenovo kernel: [ 6549.103424] WARNING: CPU: 0 PID: 4 at /build/buildd/linux-3.11.0/drivers/net/wireless/iwlwifi/mvm/binding.c:193 iwl_mvm_binding_remove_vif+0x3f/0x50 [iwlmvm]()
Dec  4 22:14:14 lenovo kernel: [ 6549.103442] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:14:14 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:14:14 lenovo kernel: [ 6549.103666] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:14:14 lenovo kernel: [ 6549.103672] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:14:14 lenovo kernel: [ 6549.103682] Workqueue: events rfkill_op_handler
Dec  4 22:14:14 lenovo kernel: [ 6549.103687]  0000000000000009 ffff8802539f1940 ffffffff816e593a 0000000000000000
Dec  4 22:14:14 lenovo kernel: [ 6549.103698]  ffff8802539f1978 ffffffff81061dbd ffff8802512b11c0 ffff8802522f37b0
Dec  4 22:14:14 lenovo kernel: [ 6549.103708]  ffff8802522f37e0 ffff88020aa13840 ffff88020aa13870 ffff8802539f1988
Dec  4 22:14:14 lenovo kernel: [ 6549.103719] Call Trace:
Dec  4 22:14:14 lenovo kernel: [ 6549.103730]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:14:14 lenovo kernel: [ 6549.103741]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:14:14 lenovo kernel: [ 6549.103752]  [<ffffffff81061e9a>] warn_slowpath_null+0x1a/0x20
Dec  4 22:14:14 lenovo kernel: [ 6549.103799]  [<ffffffffa061ae2f>] iwl_mvm_binding_remove_vif+0x3f/0x50 [iwlmvm]
Dec  4 22:14:14 lenovo kernel: [ 6549.103841]  [<ffffffffa0612d92>] iwl_mvm_unassign_vif_chanctx+0x52/0x90 [iwlmvm]
Dec  4 22:14:14 lenovo kernel: [ 6549.103912]  [<ffffffffa057570a>] __ieee80211_vif_release_channel+0x9a/0x1e0 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.103970]  [<ffffffffa0575d1d>] ieee80211_vif_release_channel+0x4d/0x70 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.104008]  [<ffffffffa0586b77>] ieee80211_set_disassoc+0x267/0x3d0 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.104046]  [<ffffffffa058abe3>] ieee80211_mgd_deauth+0x1d3/0x240 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.104080]  [<ffffffffa0560598>] ieee80211_deauth+0x18/0x20 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.104117]  [<ffffffffa03c476c>] cfg80211_mlme_deauth+0x9c/0x140 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.104150]  [<ffffffffa03c4a1b>] cfg80211_mlme_down+0x6b/0x90 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.104185]  [<ffffffffa03c867b>] cfg80211_disconnect+0x18b/0x1a0 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.104238]  [<ffffffffa03ad5cc>] ? __cfg80211_stop_sched_scan+0x1c/0x130 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.104267]  [<ffffffffa03a49f4>] cfg80211_leave+0xc4/0xe0 [cfg80211]
Dec  4 22:14:14 lenovo wpa_supplicant[1100]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:24:fe:04:e9:85 reason=3
Dec  4 22:14:14 lenovo kernel: [ 6549.104303]  [<ffffffffa03a4dab>] cfg80211_netdev_notifier_call+0x39b/0x610 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.104315]  [<ffffffff81658558>] ? inetdev_event+0x38/0x510
Dec  4 22:14:14 lenovo kernel: [ 6549.104325]  [<ffffffff810925c5>] ? check_preempt_curr+0x85/0xa0
Dec  4 22:14:14 lenovo kernel: [ 6549.104335]  [<ffffffff810925f9>] ? ttwu_do_wakeup+0x19/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.104348]  [<ffffffff816f0f6c>] notifier_call_chain+0x4c/0x70
Dec  4 22:14:14 lenovo kernel: [ 6549.104359]  [<ffffffff8108a006>] raw_notifier_call_chain+0x16/0x20
Dec  4 22:14:14 lenovo kernel: [ 6549.104370]  [<ffffffff815ea5a5>] call_netdevice_notifiers_info+0x35/0x60
Dec  4 22:14:14 lenovo kernel: [ 6549.104381]  [<ffffffff815ea699>] __dev_close_many+0x49/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.104392]  [<ffffffff815ea83b>] dev_close_many+0x8b/0x100
Dec  4 22:14:14 lenovo kernel: [ 6549.104403]  [<ffffffff815ec2d4>] dev_close.part.62+0x44/0x80
Dec  4 22:14:14 lenovo kernel: [ 6549.104414]  [<ffffffff815ec331>] dev_close+0x21/0x30
Dec  4 22:14:14 lenovo kernel: [ 6549.104442]  [<ffffffffa03a4695>] cfg80211_rfkill_set_block.part.7+0x35/0x80 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.104471]  [<ffffffffa03a46f9>] cfg80211_rfkill_set_block+0x19/0x20 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.104483]  [<ffffffff816ced90>] rfkill_set_block+0x90/0x140
Dec  4 22:14:14 lenovo kernel: [ 6549.104494]  [<ffffffff816cee8e>] __rfkill_switch_all+0x4e/0x70
Dec  4 22:14:14 lenovo kernel: [ 6549.104505]  [<ffffffff816cfaf3>] rfkill_switch_all+0x53/0x60
Dec  4 22:14:14 lenovo kernel: [ 6549.104516]  [<ffffffff816d00cf>] rfkill_op_handler+0x10f/0x1a0
Dec  4 22:14:14 lenovo kernel: [ 6549.104527]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:14:14 lenovo kernel: [ 6549.104536]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:14:14 lenovo kernel: [ 6549.104546]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:14:14 lenovo kernel: [ 6549.104558]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.104569]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:14:14 lenovo kernel: [ 6549.104579]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:14:14 lenovo kernel: [ 6549.104590]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:14:14 lenovo kernel: [ 6549.104597] ---[ end trace fb2630dcabca589c ]---
Dec  4 22:14:14 lenovo NetworkManager[1048]: <info> WiFi now disabled by radio killswitch
Dec  4 22:14:14 lenovo NetworkManager[1048]: <info> (wlan0): device state change: activated -> unavailable (reason 'none') [100 20 0]
Dec  4 22:14:14 lenovo NetworkManager[1048]: <info> (wlan0): deactivating device (reason 'none') [0]
Dec  4 22:14:14 lenovo NetworkManager[1048]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 1125
Dec  4 22:14:14 lenovo wpa_supplicant[1100]: rfkill: WLAN soft blocked
Dec  4 22:14:14 lenovo kernel: [ 6549.165851] iwlwifi 0000:02:00.0: Failed to send flush command (-5)
Dec  4 22:14:14 lenovo kernel: [ 6549.165871] ------------[ cut here ]------------
Dec  4 22:14:14 lenovo kernel: [ 6549.165884] WARNING: CPU: 0 PID: 4 at /build/buildd/linux-3.11.0/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c:1062 iwl_mvm_mac_ctxt_remove+0x14e/0x160 [iwlmvm]()
Dec  4 22:14:14 lenovo kernel: [ 6549.165886] Removing inactive MAC 0c:8b:fd:6d:5d:1c/2
Dec  4 22:14:14 lenovo kernel: [ 6549.165887] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:14:14 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:14:14 lenovo kernel: [ 6549.165931] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:14:14 lenovo kernel: [ 6549.165932] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:14:14 lenovo kernel: [ 6549.165937] Workqueue: events rfkill_op_handler
Dec  4 22:14:14 lenovo kernel: [ 6549.165939]  0000000000000009 ffff8802539f1ab0 ffffffff816e593a ffff8802539f1af8
Dec  4 22:14:14 lenovo kernel: [ 6549.165941]  ffff8802539f1ae8 ffffffff81061dbd ffff8802512b11c0 ffff8802522f37a0
Dec  4 22:14:14 lenovo kernel: [ 6549.165944]  ffff8802522f37b0 ffff8802522f37e0 ffff8802512b11c0 ffff8802539f1b48
Dec  4 22:14:14 lenovo kernel: [ 6549.165946] Call Trace:
Dec  4 22:14:14 lenovo kernel: [ 6549.165951]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:14:14 lenovo kernel: [ 6549.165955]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:14:14 lenovo kernel: [ 6549.165957]  [<ffffffff81061e2c>] warn_slowpath_fmt+0x4c/0x50
Dec  4 22:14:14 lenovo kernel: [ 6549.165963]  [<ffffffffa0617ebe>] iwl_mvm_mac_ctxt_remove+0x14e/0x160 [iwlmvm]
Dec  4 22:14:14 lenovo kernel: [ 6549.165966]  [<ffffffff811c5560>] ? mntput_no_expire+0x100/0x150
Dec  4 22:14:14 lenovo kernel: [ 6549.165968]  [<ffffffff811c55d6>] ? mntput+0x26/0x40
Dec  4 22:14:14 lenovo kernel: [ 6549.165972]  [<ffffffff812c1266>] ? debugfs_remove_recursive+0x116/0x1c0
Dec  4 22:14:14 lenovo kernel: [ 6549.165976]  [<ffffffffa06140f4>] iwl_mvm_mac_remove_interface+0xb4/0x190 [iwlmvm]
Dec  4 22:14:14 lenovo kernel: [ 6549.165988]  [<ffffffffa055b7e3>] ieee80211_do_stop+0x4a3/0x7f0 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.165996]  [<ffffffffa055bb4a>] ieee80211_stop+0x1a/0x20 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.166000]  [<ffffffff815ea6d5>] __dev_close_many+0x85/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.166002]  [<ffffffff815ea83b>] dev_close_many+0x8b/0x100
Dec  4 22:14:14 lenovo kernel: [ 6549.166005]  [<ffffffff815ec2d4>] dev_close.part.62+0x44/0x80
Dec  4 22:14:14 lenovo kernel: [ 6549.166008]  [<ffffffff815ec331>] dev_close+0x21/0x30
Dec  4 22:14:14 lenovo kernel: [ 6549.166017]  [<ffffffffa03a4695>] cfg80211_rfkill_set_block.part.7+0x35/0x80 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.166023]  [<ffffffffa03a46f9>] cfg80211_rfkill_set_block+0x19/0x20 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.166026]  [<ffffffff816ced90>] rfkill_set_block+0x90/0x140
Dec  4 22:14:14 lenovo kernel: [ 6549.166029]  [<ffffffff816cee8e>] __rfkill_switch_all+0x4e/0x70
Dec  4 22:14:14 lenovo kernel: [ 6549.166032]  [<ffffffff816cfaf3>] rfkill_switch_all+0x53/0x60
Dec  4 22:14:14 lenovo kernel: [ 6549.166034]  [<ffffffff816d00cf>] rfkill_op_handler+0x10f/0x1a0
Dec  4 22:14:14 lenovo kernel: [ 6549.166037]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:14:14 lenovo kernel: [ 6549.166040]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:14:14 lenovo kernel: [ 6549.166042]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:14:14 lenovo kernel: [ 6549.166045]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.166048]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:14:14 lenovo kernel: [ 6549.166051]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:14:14 lenovo kernel: [ 6549.166054]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:14:14 lenovo kernel: [ 6549.166055] ---[ end trace fb2630dcabca589d ]---
Dec  4 22:14:14 lenovo kernel: [ 6549.166057] ------------[ cut here ]------------
Dec  4 22:14:14 lenovo kernel: [ 6549.166063] WARNING: CPU: 0 PID: 4 at /build/buildd/linux-3.11.0/drivers/net/wireless/iwlwifi/pcie/tx.c:1136 iwl_trans_pcie_txq_disable+0x115/0x150 [iwlwifi]()
Dec  4 22:14:14 lenovo kernel: [ 6549.166064] queue 0 not used
Dec  4 22:14:14 lenovo kernel: [ 6549.166065] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) parport_pc(F) ppdev(F) x86_pkg_temp_thermal coretemp kvm_intel(F) arc4(F) kvm(F) rfcomm bnep crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) uvcvideo btusb hid_multitouch videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev iwlmvm mac80211 nfsd(F) microcode(F) auth_rpcgss(F) nfs_acl(F) binfmt_misc(F) nfs(F) lockd(F) psmouse(F) sunrpc(F) snd_hda_codec_hdmi snd_hda_codec_realtek serio_raw(F) fscache(F) iwlwifi cfg80211 snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) ideapad_laptop snd_seq_device(F) snd_timer(F) sparse_keymap lpc_ich snd(F) mac_hid mei_me mei soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) usbhid hi
Dec  4 22:14:14 lenovo kernel: d i915 i2c_algo_bit drm_kms_helper drm ahci(F) libahci(F) wmi video(F)
Dec  4 22:14:14 lenovo kernel: [ 6549.166100] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: GF       W IO 3.11.0-14-generic #21-Ubuntu
Dec  4 22:14:14 lenovo kernel: [ 6549.166101] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
Dec  4 22:14:14 lenovo kernel: [ 6549.166103] Workqueue: events rfkill_op_handler
Dec  4 22:14:14 lenovo kernel: [ 6549.166104]  0000000000000009 ffff8802539f1b10 ffffffff816e593a ffff8802539f1b58
Dec  4 22:14:14 lenovo kernel: [ 6549.166107]  ffff8802539f1b48 ffffffff81061dbd ffff88024f474000 0000000000000000
Dec  4 22:14:14 lenovo kernel: [ 6549.166109]  000000000080af00 ffff8802522f37b0 0000000000000000 ffff8802539f1ba8
Dec  4 22:14:14 lenovo kernel: [ 6549.166111] Call Trace:
Dec  4 22:14:14 lenovo kernel: [ 6549.166114]  [<ffffffff816e593a>] dump_stack+0x45/0x56
Dec  4 22:14:14 lenovo kernel: [ 6549.166116]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
Dec  4 22:14:14 lenovo kernel: [ 6549.166119]  [<ffffffff81061e2c>] warn_slowpath_fmt+0x4c/0x50
Dec  4 22:14:14 lenovo kernel: [ 6549.166122]  [<ffffffff811c55d6>] ? mntput+0x26/0x40
Dec  4 22:14:14 lenovo kernel: [ 6549.166127]  [<ffffffffa04247e5>] iwl_trans_pcie_txq_disable+0x115/0x150 [iwlwifi]
Dec  4 22:14:14 lenovo kernel: [ 6549.166131]  [<ffffffffa0617abf>] iwl_mvm_mac_ctxt_release+0x4f/0x170 [iwlmvm]
Dec  4 22:14:14 lenovo kernel: [ 6549.166135]  [<ffffffffa06140ff>] iwl_mvm_mac_remove_interface+0xbf/0x190 [iwlmvm]
Dec  4 22:14:14 lenovo kernel: [ 6549.166143]  [<ffffffffa055b7e3>] ieee80211_do_stop+0x4a3/0x7f0 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.166151]  [<ffffffffa055bb4a>] ieee80211_stop+0x1a/0x20 [mac80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.166153]  [<ffffffff815ea6d5>] __dev_close_many+0x85/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.166156]  [<ffffffff815ea83b>] dev_close_many+0x8b/0x100
Dec  4 22:14:14 lenovo kernel: [ 6549.166158]  [<ffffffff815ec2d4>] dev_close.part.62+0x44/0x80
Dec  4 22:14:14 lenovo kernel: [ 6549.166161]  [<ffffffff815ec331>] dev_close+0x21/0x30
Dec  4 22:14:14 lenovo kernel: [ 6549.166168]  [<ffffffffa03a4695>] cfg80211_rfkill_set_block.part.7+0x35/0x80 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.166175]  [<ffffffffa03a46f9>] cfg80211_rfkill_set_block+0x19/0x20 [cfg80211]
Dec  4 22:14:14 lenovo kernel: [ 6549.166177]  [<ffffffff816ced90>] rfkill_set_block+0x90/0x140
Dec  4 22:14:14 lenovo kernel: [ 6549.166180]  [<ffffffff816cee8e>] __rfkill_switch_all+0x4e/0x70
Dec  4 22:14:14 lenovo kernel: [ 6549.166182]  [<ffffffff816cfaf3>] rfkill_switch_all+0x53/0x60
Dec  4 22:14:14 lenovo kernel: [ 6549.166185]  [<ffffffff816d00cf>] rfkill_op_handler+0x10f/0x1a0
Dec  4 22:14:14 lenovo kernel: [ 6549.166187]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec  4 22:14:14 lenovo kernel: [ 6549.166190]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec  4 22:14:14 lenovo kernel: [ 6549.166192]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec  4 22:14:14 lenovo kernel: [ 6549.166194]  [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec  4 22:14:14 lenovo kernel: [ 6549.166197]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:14:14 lenovo kernel: [ 6549.166199]  [<ffffffff816f566c>] ret_from_fork+0x7c/0xb0
Dec  4 22:14:14 lenovo kernel: [ 6549.166202]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec  4 22:14:14 lenovo kernel: [ 6549.166203] ---[ end trace fb2630dcabca589e ]---

-- 
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https://bugs.launchpad.net/bugs/1247681

Title:
  IEEE 802.11 driver crash

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Wireless connection fails out of nothing and can only be brought back
  with airplane mode on/off. Connection is stable only for like 5 mins.
  Several stacktraces in /var/log/syslog like below. Also lines line
  "ieee80211 phy0: Hardware restart was requested" or "iwlwifi
  0000:02:00.0: Firmware error during reconfiguration! Abort."

  I get a suspicion that it may be related with VirtualBox, because it
  was stable for some time until I startet a virtual machine.

  
  Nov  3 23:14:52 lenovo kernel: [ 3360.233406] ------------[ cut here ]------------
  Nov  3 23:14:52 lenovo kernel: [ 3360.233453] WARNING: CPU: 0 PID: 13409 at /build/buildd/linux-3.11.0/net/mac80211/util.c:1509 ieee80211_reconfig+0x1143/0x1400 [mac80211]()
  Nov  3 23:14:52 lenovo kernel: [ 3360.233467] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) parport_pc(F) ppdev(F) rfcomm bnep binfmt_misc(F) nfsd(F) auth_rpcgss(F) nfs_acl(F) nfs(F) lockd(F) sunrpc(F) fscache(F) snd_hda_codec_realtek snd_hda_codec_hdmi x86_pkg_temp_thermal coretemp kvm_intel(F) kvm(F) crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) joydev(F) hid_multitouch arc4(F) uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev usbhid hid btusb iwlmvm bluetooth mac80211 iwlwifi microcode(F) snd_hda_intel cfg80211 snd_hda_codec snd_hwdep(F) snd_pcm(F) snd_page_alloc(F) psmouse(F) serio_raw(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) i915 lpc_ich wmi drm_kms_helper snd_seq_device(F) snd_timer(F) mei_me drm snd(F) ideapad_laptop mei sparse_keymap i2c_algo_bit video(F) mac_hid soundcore(F) lp(F) parport(F) nls_iso8859_1(F) btrfs(F) xor(F) z
  Nov  3 23:14:52 lenovo kernel: lib_deflate(F) raid6_pq(F) libcrc32c(F) ahci(F) libahci(F)
  Nov  3 23:14:52 lenovo kernel: [ 3360.233684] CPU: 0 PID: 13409 Comm: kworker/0:0 Tainted: GF       W IO 3.11.0-12-generic #19-Ubuntu
  Nov  3 23:14:52 lenovo kernel: [ 3360.233690] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013
  Nov  3 23:14:52 lenovo kernel: [ 3360.233717] Workqueue: events ieee80211_restart_work [mac80211]
  Nov  3 23:14:52 lenovo kernel: [ 3360.233723]  0000000000000009 ffff880175e45d40 ffffffff816e547a 0000000000000000
  Nov  3 23:14:52 lenovo kernel: [ 3360.233735]  ffff880175e45d78 ffffffff81061dbd ffff8801527a06c0 0000000000000000
  Nov  3 23:14:52 lenovo kernel: [ 3360.233745]  ffff88024fff74b0 ffff88024fff6600 00000000fffffffb ffff880175e45d88
  Nov  3 23:14:52 lenovo kernel: [ 3360.233756] Call Trace:
  Nov  3 23:14:52 lenovo kernel: [ 3360.233768]  [<ffffffff816e547a>] dump_stack+0x45/0x56
  Nov  3 23:14:52 lenovo kernel: [ 3360.233780]  [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0
  Nov  3 23:14:52 lenovo kernel: [ 3360.233791]  [<ffffffff81061e9a>] warn_slowpath_null+0x1a/0x20
  Nov  3 23:14:52 lenovo kernel: [ 3360.233827]  [<ffffffffa0489853>] ieee80211_reconfig+0x1143/0x1400 [mac80211]
  Nov  3 23:14:52 lenovo kernel: [ 3360.233856]  [<ffffffffa045f1f7>] ieee80211_restart_work+0x87/0xa0 [mac80211]
  Nov  3 23:14:52 lenovo kernel: [ 3360.233866]  [<ffffffff8107d05c>] process_one_work+0x17c/0x430
  Nov  3 23:14:52 lenovo kernel: [ 3360.233875]  [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
  Nov  3 23:14:52 lenovo kernel: [ 3360.233905]  [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
  Nov  3 23:14:52 lenovo kernel: [ 3360.233937]  [<ffffffff810847b0>] kthread+0xc0/0xd0
  Nov  3 23:14:52 lenovo kernel: [ 3360.233969]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
  Nov  3 23:14:52 lenovo kernel: [ 3360.233999]  [<ffffffff816f516c>] ret_from_fork+0x7c/0xb0
  Nov  3 23:14:52 lenovo kernel: [ 3360.234030]  [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
  Nov  3 23:14:52 lenovo kernel: [ 3360.234047] ---[ end trace 74d24ab452a883d1 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: wpasupplicant 1.0-3ubuntu2
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  Uname: Linux 3.11.0-12-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  Date: Sun Nov  3 23:03:07 2013
  InstallationDate: Installed on 2013-10-27 (7 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MarkForUpload: True
  SourcePackage: wpa
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  peter      2415 F.... pulseaudio
   /dev/snd/controlC0:  peter      2415 F.... pulseaudio
  DistroRelease: Ubuntu 13.10
  HibernationDevice: RESUME=UUID=11b4045c-f200-49ef-9c95-66e927940a14
  InstallationDate: Installed on 2013-10-27 (38 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: LENOVO 20268
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.11.0-14-generic.efi.signed root=UUID=a6d7594c-cd5f-4b57-b9b8-a7192235c2d0 ro rootflags=subvol=@ quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-14-generic N/A
   linux-backports-modules-3.11.0-14-generic  N/A
   linux-firmware                             1.116
  Tags:  saucy
  Uname: Linux 3.11.0-14-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 09/06/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7CCN26WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Cherry 3A Touch
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900003STD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: IdeaPad U330 Touch
  dmi.modalias: dmi:bvnLENOVO:bvr7CCN26WW:bd09/06/2013:svnLENOVO:pn20268:pvrIdeaPadU330Touch:rvnLENOVO:rnCherry3ATouch:rvr31900003STD:cvnLENOVO:ct10:cvrIdeaPadU330Touch:
  dmi.product.name: 20268
  dmi.product.version: IdeaPad U330 Touch
  dmi.sys.vendor: LENOVO

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