In the process of removing the NIC, the driver enqueues commands to the NIC which will obviously fail since we cant talk to it over PCI. 
This may be increasing the time required for the workaround (remove device from pci and rescan pci bus) to complete. 

2018-05-02T10:27:29.001751-07:00 WARNING kernel: [  139.300882]  [<ffffffff8d1931ec>] rest_init+0x80/0x84
2018-05-02T10:27:29.001755-07:00 WARNING kernel: [  139.300900]  [<ffffffff8d71df16>] start_kernel+0x454/0x475
2018-05-02T10:27:29.001759-07:00 WARNING kernel: [  139.300919]  [<ffffffff8d71d494>] x86_64_start_reservations+0x2a/0x2c
2018-05-02T10:27:29.001763-07:00 WARNING kernel: [  139.300938]  [<ffffffff8d71d5b1>] x86_64_start_kernel+0x11b/0x11f
2018-05-02T10:27:29.001767-07:00 WARNING kernel: [  139.300954] ---[ end trace 940e0c8671bead90 ]---
2018-05-02T10:27:29.001771-07:00 ERR kernel: [  139.300976] iwlwifi 0000:02:00.0: iwlwifi transaction failed, dumping registers
2018-05-02T10:27:29.001776-07:00 ERR kernel: [  139.300996] iwlwifi 0000:02:00.0: iwlwifi device config registers:
2018-05-02T10:27:29.001780-07:00 ERR kernel: [  139.301104] iwlwifi 0000:02:00.0: 00000000: 095a8086 00100406 02800059 00000010 00000004 00000000 00000000 00000000
2018-05-02T10:27:29.001784-07:00 ERR kernel: [  139.301131] iwlwifi 0000:02:00.0: 00000020: 00000000 00000000 00000000 50108086 00000000 000000c8 00000000 00000100
2018-05-02T10:27:29.001789-07:00 ERR kernel: [  139.301154] iwlwifi 0000:02:00.0: iwlwifi device memory mapped registers:
2018-05-02T10:27:29.001793-07:00 ERR kernel: [  139.301235] iwlwifi 0000:02:00.0: 00000000: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
2018-05-02T10:27:29.001797-07:00 ERR kernel: [  139.301261] iwlwifi 0000:02:00.0: 00000020: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
2018-05-02T10:27:29.001801-07:00 ERR kernel: [  139.301318] iwlwifi 0000:02:00.0: iwlwifi device AER capability structure:
2018-05-02T10:27:29.001805-07:00 ERR kernel: [  139.301395] iwlwifi 0000:02:00.0: 00000000: 14010001 00100000 00000000 00462031 00002000 00002000 00000014 40000001
2018-05-02T10:27:29.001809-07:00 ERR kernel: [  139.301418] iwlwifi 0000:02:00.0: 00000020: 0000010f d120000c 00000000
2018-05-02T10:27:29.001813-07:00 ERR kernel: [  139.301438] iwlwifi 0000:02:00.0: iwlwifi parent port (0000:00:1c.2) config registers:
2018-05-02T10:27:29.001817-07:00 ERR kernel: [  139.301799] iwlwifi 0000:00:1c.2: 00000000: 22cc8086 00100506 06040021 00810010 00000000 00000000 00020200 200000f0
2018-05-02T10:27:29.001822-07:00 ERR kernel: [  139.301825] iwlwifi 0000:00:1c.2: 00000020: d120d120 0001fff1 00000000 00000000 00000000 00000040 00000000 00030300
2018-05-02T10:27:29.001826-07:00 ERR kernel: [  139.301891] iwlwifi 0000:02:00.0: Device gone - scheduling removal!
2018-05-02T10:27:29.250794-07:00 ERR kernel: [  139.488065] iwlwifi 0000:02:00.0: Queue 4 is active on fifo 2 and stuck for 10000 ms. SW [53, 59] HW [90, 90] FH TRB=0x05a5a5a5a
2018-05-02T10:27:29.250830-07:00 ERR kernel: [  139.551009] iwlwifi 0000:02:00.0: Device gone - attempting removal
2018-05-02T10:27:29.267772-07:00 INFO crash_reporter[2937]: libminijail[2937]: mount /dev/log -> /dev/log type ''
2018-05-02T10:27:29.319787-07:00 INFO kernel: [  139.558829] wlan0: deauthenticating from 6c:f3:7f:af:fa:91 by local choice (Reason: 3=DEAUTH_LEAVING)
2018-05-02T10:27:29.319841-07:00 ERR kernel: [  139.620362] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:29.323504-07:00 NOTICE pci-rescan[2942]: wifi NIC disappeared from PCI
2018-05-02T10:27:29.381743-07:00 ERR kernel: [  139.620490] iwlwifi 0000:02:00.0: Error sending MAC_CONTEXT_CMD: enqueue_hcmd failed: -5
2018-05-02T10:27:29.381780-07:00 ERR kernel: [  139.620511] iwlwifi 0000:02:00.0: Failed to send MAC context (action:2): -5
2018-05-02T10:27:29.381785-07:00 ERR kernel: [  139.620525] iwlwifi 0000:02:00.0: failed to update MAC 10:02:b5:e9:be:3e
2018-05-02T10:27:29.381788-07:00 ERR kernel: [  139.682220] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:29.445665-07:00 ERR kernel: [  139.682971] iwlwifi 0000:02:00.0: Error sending MAC_PM_POWER_TABLE: enqueue_hcmd failed: -5
2018-05-02T10:27:29.445720-07:00 ERR kernel: [  139.683011] iwlwifi 0000:02:00.0: failed to update power mode
2018-05-02T10:27:29.445726-07:00 ERR kernel: [  139.745913] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:29.445730-07:00 ERR kernel: [  139.746135] iwlwifi 0000:02:00.0: Error sending TXPATH_FLUSH: enqueue_hcmd failed: -5
2018-05-02T10:27:29.445733-07:00 ERR kernel: [  139.746178] iwlwifi 0000:02:00.0: Failed to send flush command (-5)
2018-05-02T10:27:29.445736-07:00 ERR kernel: [  139.746200] iwlwifi 0000:02:00.0: flush request fail
2018-05-02T10:27:31.510375-07:00 ERR kernel: [  141.748372] iwlwifi 0000:02:00.0: fail to flush all tx fifo queues Q 4
2018-05-02T10:27:31.759380-07:00 ERR kernel: [  141.997212] iwlwifi 0000:02:00.0: Queue 4 is active on fifo 2 and stuck for 10000 ms. SW [53, 59] HW [90, 90] FH TRB=0x05a5a5a5a
2018-05-02T10:27:31.759434-07:00 ERR kernel: [  142.059551] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:31.759443-07:00 ERR kernel: [  142.059694] iwlwifi 0000:02:00.0: Error sending ADD_STA: enqueue_hcmd failed: -5
2018-05-02T10:27:31.759448-07:00 INFO kernel: [  142.059769] wlan0: HW problem - can not stop rx aggregation for 6c:f3:7f:af:fa:91 tid 0
2018-05-02T10:27:31.821341-07:00 ERR kernel: [  142.121384] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:31.821397-07:00 ERR kernel: [  142.121734] iwlwifi 0000:02:00.0: Error sending ADD_STA: enqueue_hcmd failed: -5
2018-05-02T10:27:31.821406-07:00 INFO kernel: [  142.121775] wlan0: HW problem - can not stop rx aggregation for 6c:f3:7f:af:fa:91 tid 4
2018-05-02T10:27:31.883548-07:00 ERR kernel: [  142.183824] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:31.946442-07:00 ERR kernel: [  142.184551] iwlwifi 0000:02:00.0: Error sending ADD_STA: enqueue_hcmd failed: -5
2018-05-02T10:27:31.946491-07:00 INFO kernel: [  142.184595] wlan0: HW problem - can not stop rx aggregation for 6c:f3:7f:af:fa:91 tid 6
2018-05-02T10:27:31.946499-07:00 ERR kernel: [  142.246483] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:31.946504-07:00 ERR kernel: [  142.246698] iwlwifi 0000:02:00.0: Error sending ADD_STA: enqueue_hcmd failed: -5
2018-05-02T10:27:31.946509-07:00 INFO kernel: [  142.246768] wlan0: HW problem - can not stop rx aggregation for 6c:f3:7f:af:fa:91 tid 7
2018-05-02T10:27:32.008747-07:00 ERR kernel: [  142.309201] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:32.008817-07:00 ERR kernel: [  142.309305] iwlwifi 0000:02:00.0: Error sending ADD_STA: enqueue_hcmd failed: -5
2018-05-02T10:27:32.070679-07:00 ERR kernel: [  142.370953] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:32.070746-07:00 ERR kernel: [  142.371245] iwlwifi 0000:02:00.0: Error sending TXPATH_FLUSH: enqueue_hcmd failed: -5
2018-05-02T10:27:32.070752-07:00 ERR kernel: [  142.371271] iwlwifi 0000:02:00.0: Failed to send flush command (-5)
2018-05-02T10:27:32.070770-07:00 ERR kernel: [  142.371292] iwlwifi 0000:02:00.0: Couldn't flush the AGG queue
2018-05-02T10:27:34.134247-07:00 ERR kernel: [  144.372240] iwlwifi 0000:02:00.0: fail to flush all tx fifo queues Q 4
2018-05-02T10:27:34.380869-07:00 ERR kernel: [  144.619673] iwlwifi 0000:02:00.0: Queue 4 is active on fifo 2 and stuck for 10000 ms. SW [53, 59] HW [90, 90] FH TRB=0x05a5a5a5a
2018-05-02T10:27:34.380916-07:00 ERR kernel: [  144.681147] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:34.443573-07:00 ERR kernel: [  144.682011] iwlwifi 0000:02:00.0: Error sending ADD_STA: enqueue_hcmd failed: -5
2018-05-02T10:27:34.443631-07:00 ERR kernel: [  144.743845] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:34.443638-07:00 ERR kernel: [  144.743948] iwlwifi 0000:02:00.0: Error sending ADD_STA: enqueue_hcmd failed: -5
2018-05-02T10:27:34.505516-07:00 ERR kernel: [  144.805550] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:34.505574-07:00 ERR kernel: [  144.805751] iwlwifi 0000:02:00.0: Error sending REPLY_BEACON_FILTERING_CMD: enqueue_hcmd failed: -5
2018-05-02T10:27:34.505582-07:00 WARNING kernel: [  144.805790] ------------[ cut here ]------------
2018-05-02T10:27:34.505587-07:00 WARNING kernel: [  144.805875] WARNING: CPU: 0 PID: 1472 at /mnt/host/source/src/third_party/kernel/v3.18/drivers/net/wireless/iwl7000/iwlwifi/mvm/mac80211.c:2938 iwl_mvm_mac_sta_state+0x415/0x4ff [iwlmvm]()
2018-05-02T10:27:34.506219-07:00 WARNING kernel: [  144.805920] Modules linked in: cmac rfcomm uinput snd_hda_codec_hdmi snd_soc_sst_cht_bsw_max98090_ti snd_hda_intel snd_hda_codec snd_hwdep snd_intel_sst_acpi snd_soc_sst_acpi snd_intel_sst_core bridge stp llc snd_soc_sst_mfld_platform zram memconsole_x86_legacy memconsole snd_hda_core snd_soc_max98090 ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_mark fuse snd_seq_dummy iio_trig_sysfs snd_seq_midi snd_seq_midi_event snd_rawmidi cros_ec_sensors_ring cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_seq ip6table_filter snd_seq_device r8152 mii iwlmvm iwlwifi iwl7000_mac80211 cfg80211 btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core joydev
2018-05-02T10:27:34.506244-07:00 WARNING kernel: [  144.806438] CPU: 0 PID: 1472 Comm: kworker/0:2 Tainted: G        W      3.18.0 #1
2018-05-02T10:27:34.506251-07:00 WARNING kernel: [  144.806464] Hardware name: GOOGLE Cyan, BIOS Google_Cyan.7287.57.125 06/06/2017
2018-05-02T10:27:34.506255-07:00 WARNING kernel: [  144.806532] Workqueue: events iwl_trans_pcie_removal_wk [iwlwifi]
2018-05-02T10:27:34.506259-07:00 WARNING kernel: [  144.806563]  0000000000000000 0000000064cc7061 ffff8801756f7678 ffffffff8d195a40
2018-05-02T10:27:34.506282-07:00 WARNING kernel: [  144.806667]  0000000000000000 0000000000000000 ffff8801756f76b8 ffffffff8cbbfc73
2018-05-02T10:27:34.507490-07:00 WARNING kernel: [  144.806718]  000000000000b782 ffffffffc03a3f39 ffff880074800930 ffff880078281900
2018-05-02T10:27:34.507538-07:00 WARNING kernel: [  144.806777] Call Trace:
2018-05-02T10:27:34.507545-07:00 WARNING kernel: [  144.806819]  [<ffffffff8d195a40>] dump_stack+0x4e/0x71
2018-05-02T10:27:34.507549-07:00 WARNING kernel: [  144.806860]  [<ffffffff8cbbfc73>] warn_slowpath_common+0x84/0x9f
2018-05-02T10:27:34.507553-07:00 WARNING kernel: [  144.806900]  [<ffffffff8cbbfcc7>] warn_slowpath_null+0x39/0x40
2018-05-02T10:27:34.507557-07:00 WARNING kernel: [  144.806970]  [<ffffffffc03631cf>] iwl_mvm_mac_sta_state+0x415/0x4ff [iwlmvm]
2018-05-02T10:27:34.507561-07:00 WARNING kernel: [  144.807068]  [<ffffffffc02645ad>] drv_sta_state+0xe8/0x2b1 [iwl7000_mac80211]
2018-05-02T10:27:34.507566-07:00 WARNING kernel: [  144.807166]  [<ffffffffc0268073>] sta_info_move_state+0x11d/0x1fb [iwl7000_mac80211]
2018-05-02T10:27:34.507570-07:00 WARNING kernel: [  144.807263]  [<ffffffffc026900c>] __sta_info_destroy_part2+0x72/0x18f [iwl7000_mac80211]
2018-05-02T10:27:34.507574-07:00 WARNING kernel: [  144.807356]  [<ffffffffc026927b>] __sta_info_flush+0x152/0x188 [iwl7000_mac80211]
2018-05-02T10:27:34.507578-07:00 WARNING kernel: [  144.807490]  [<ffffffffc02a7319>] ieee80211_set_disassoc+0x193/0x378 [iwl7000_mac80211]
2018-05-02T10:27:34.507581-07:00 WARNING kernel: [  144.807624]  [<ffffffffc02abfdc>] ieee80211_mgd_deauth+0x200/0x241 [iwl7000_mac80211]
2018-05-02T10:27:34.507585-07:00 WARNING kernel: [  144.807790]  [<ffffffffc027cc74>] ieee80211_deauth+0x18/0x1a [iwl7000_mac80211]
2018-05-02T10:27:34.507589-07:00 WARNING kernel: [  144.807939]  [<ffffffffc01f8bd0>] cfg80211_mlme_deauth+0xdc/0x10f [cfg80211]
2018-05-02T10:27:34.507610-07:00 WARNING kernel: [  144.808038]  [<ffffffffc01f8dc3>] cfg80211_mlme_down+0x6b/0x83 [cfg80211]
2018-05-02T10:27:34.508369-07:00 WARNING kernel: [  144.808134]  [<ffffffffc01fc004>] cfg80211_disconnect+0xc6/0x159 [cfg80211]
2018-05-02T10:27:34.508410-07:00 WARNING kernel: [  144.808216]  [<ffffffffc01dc9b1>] __cfg80211_leave+0xd3/0xfa [cfg80211]
2018-05-02T10:27:34.508417-07:00 WARNING kernel: [  144.808292]  [<ffffffffc01dcbbd>] cfg80211_netdev_notifier_call+0x1e5/0x52f [cfg80211]
2018-05-02T10:27:34.508421-07:00 WARNING kernel: [  144.808344]  [<ffffffff8ca0b7a0>] raw_notifier_call_chain+0x3b/0x51
2018-05-02T10:27:34.508425-07:00 WARNING kernel: [  144.808386]  [<ffffffff8d0b2655>] call_netdevice_notifiers_info+0x53/0x5b
2018-05-02T10:27:34.508428-07:00 WARNING kernel: [  144.808423]  [<ffffffff8d0b2682>] call_netdevice_notifiers+0x25/0x3b
2018-05-02T10:27:34.508432-07:00 WARNING kernel: [  144.808460]  [<ffffffff8d0b282c>] __dev_close_many+0x69/0xca
2018-05-02T10:27:34.508436-07:00 WARNING kernel: [  144.808494]  [<ffffffff8d0b54ae>] dev_close_many+0x84/0x11b
2018-05-02T10:27:34.508440-07:00 WARNING kernel: [  144.808531]  [<ffffffff8d0b5594>] dev_close+0x4f/0x74
2018-05-02T10:27:34.508443-07:00 WARNING kernel: [  144.808603]  [<ffffffffc01dc5c2>] cfg80211_shutdown_all_interfaces+0x62/0x87 [cfg80211]
2018-05-02T10:27:34.508447-07:00 WARNING kernel: [  144.808762]  [<ffffffffc0278892>] ieee80211_remove_interfaces+0x6f/0x19e [iwl7000_mac80211]
2018-05-02T10:27:34.508468-07:00 WARNING kernel: [  144.808897]  [<ffffffffc02613d2>] __iwl7000_ieee80211_unregister_hw+0x4b/0x134 [iwl7000_mac80211]
2018-05-02T10:27:34.509416-07:00 WARNING kernel: [  144.808986]  [<ffffffffc03689ab>] iwl_op_mode_mvm_stop+0x59/0x141 [iwlmvm]
2018-05-02T10:27:34.509443-07:00 WARNING kernel: [  144.809062]  [<ffffffffc0368952>] ? iwl_mvm_rx+0xa8/0xa8 [iwlmvm]
2018-05-02T10:27:34.509450-07:00 WARNING kernel: [  144.809126]  [<ffffffffc031be87>] _iwl_op_mode_stop+0x3e/0x65 [iwlwifi]
2018-05-02T10:27:34.509455-07:00 WARNING kernel: [  144.809191]  [<ffffffffc031efea>] iwl_drv_stop+0x22/0xd4 [iwlwifi]
2018-05-02T10:27:34.509458-07:00 WARNING kernel: [  144.809255]  [<ffffffffc0323015>] iwl_pci_remove+0x2d/0x39 [iwlwifi]
2018-05-02T10:27:34.509462-07:00 WARNING kernel: [  144.809299]  [<ffffffff8cdb3976>] pci_device_remove+0x4b/0x96
2018-05-02T10:27:34.509466-07:00 WARNING kernel: [  144.809349]  [<ffffffff8cf01386>] __device_release_driver+0xbd/0x13c
2018-05-02T10:27:34.509469-07:00 WARNING kernel: [  144.809383]  [<ffffffff8cf01428>] device_release_driver+0x23/0x30
2018-05-02T10:27:34.509473-07:00 WARNING kernel: [  144.809420]  [<ffffffff8cdae725>] pci_stop_bus_device+0x4a/0x8d
2018-05-02T10:27:34.509477-07:00 WARNING kernel: [  144.809456]  [<ffffffff8cdae8cd>] pci_stop_and_remove_bus_device+0x13/0x1f
2018-05-02T10:27:34.509481-07:00 WARNING kernel: [  144.809527]  [<ffffffffc032d2c3>] iwl_trans_pcie_removal_wk+0x75/0xac [iwlwifi]
2018-05-02T10:27:34.509484-07:00 WARNING kernel: [  144.809575]  [<ffffffff8ca0aa71>] worker_thread+0x592/0x84f
2018-05-02T10:27:34.509488-07:00 WARNING kernel: [  144.809611]  [<ffffffff8ca0a4df>] ? flush_work+0x1c5/0x1c5
2018-05-02T10:27:34.509492-07:00 WARNING kernel: [  144.809724]  [<ffffffff8cbd701e>] kthread+0x111/0x119
2018-05-02T10:27:34.509536-07:00 WARNING kernel: [  144.809765]  [<ffffffff8cbc2045>] ? do_exit+0x947/0x96d
2018-05-02T10:27:34.509544-07:00 WARNING kernel: [  144.809868]  [<ffffffff8cbd6f0d>] ? __kthread_parkme+0x67/0x67
2018-05-02T10:27:34.509569-07:00 WARNING kernel: [  144.809912]  [<ffffffff8d19a692>] ret_from_fork+0x92/0xc0
2018-05-02T10:27:34.509577-07:00 WARNING kernel: [  144.809949]  [<ffffffff8cbd6f0d>] ? __kthread_parkme+0x67/0x67
2018-05-02T10:27:34.509581-07:00 WARNING kernel: [  144.809979] ---[ end trace 940e0c8671bead91 ]---
2018-05-02T10:27:34.572589-07:00 ERR kernel: [  144.872768] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:34.572636-07:00 ERR kernel: [  144.872883] iwlwifi 0000:02:00.0: Error sending ADD_STA: enqueue_hcmd failed: -5
2018-05-02T10:27:34.572642-07:00 WARNING kernel: [  144.872915] ------------[ cut here ]------------
2018-05-02T10:27:34.572645-07:00 WARNING kernel: [  144.872998] WARNING: CPU: 0 PID: 1472 at /mnt/host/source/src/third_party/kernel/v3.18/drivers/net/wireless/iwl7000/mac80211/sta_info.c:1003 __sta_info_destroy_part2+0xd4/0x18f [iwl7000_mac80211]()
2018-05-02T10:27:34.573462-07:00 WARNING kernel: [  144.873032] Modules linked in: cmac rfcomm uinput snd_hda_codec_hdmi snd_soc_sst_cht_bsw_max98090_ti snd_hda_intel snd_hda_codec snd_hwdep snd_intel_sst_acpi snd_soc_sst_acpi snd_intel_sst_core bridge stp llc snd_soc_sst_mfld_platform zram memconsole_x86_legacy memconsole snd_hda_core snd_soc_max98090 ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_mark fuse snd_seq_dummy iio_trig_sysfs snd_seq_midi snd_seq_midi_event snd_rawmidi cros_ec_sensors_ring cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_seq ip6table_filter snd_seq_device r8152 mii iwlmvm iwlwifi iwl7000_mac80211 cfg80211 btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core joydev
2018-05-02T10:27:34.573510-07:00 WARNING kernel: [  144.873497] CPU: 0 PID: 1472 Comm: kworker/0:2 Tainted: G        W      3.18.0 #1
2018-05-02T10:27:34.573517-07:00 WARNING kernel: [  144.873522] Hardware name: GOOGLE Cyan, BIOS Google_Cyan.7287.57.125 06/06/2017
2018-05-02T10:27:34.573522-07:00 WARNING kernel: [  144.873591] Workqueue: events iwl_trans_pcie_removal_wk [iwlwifi]
2018-05-02T10:27:34.573526-07:00 WARNING kernel: [  144.873653]  0000000000000000 0000000064cc7061 ffff8801756f7768 ffffffff8d195a40
2018-05-02T10:27:34.573529-07:00 WARNING kernel: [  144.873701]  0000000000000000 0000000000000000 ffff8801756f77a8 ffffffff8cbbfc73
2018-05-02T10:27:34.573534-07:00 WARNING kernel: [  144.873746]  000000000000caa5 ffffffffc02c231e ffff880078280700 ffff880178a68900
2018-05-02T10:27:34.573539-07:00 WARNING kernel: [  144.873791] Call Trace:
2018-05-02T10:27:34.573548-07:00 WARNING kernel: [  144.873825]  [<ffffffff8d195a40>] dump_stack+0x4e/0x71
2018-05-02T10:27:34.573552-07:00 WARNING kernel: [  144.873848]  [<ffffffff8cbbfc73>] warn_slowpath_common+0x84/0x9f
2018-05-02T10:27:34.573614-07:00 WARNING kernel: [  144.873908]  [<ffffffff8cbbfcc7>] warn_slowpath_null+0x39/0x40
2018-05-02T10:27:34.573623-07:00 WARNING kernel: [  144.873965]  [<ffffffffc026906e>] __sta_info_destroy_part2+0xd4/0x18f [iwl7000_mac80211]
2018-05-02T10:27:34.573628-07:00 WARNING kernel: [  144.874049]  [<ffffffffc026927b>] __sta_info_flush+0x152/0x188 [iwl7000_mac80211]
2018-05-02T10:27:34.574357-07:00 WARNING kernel: [  144.874197]  [<ffffffffc02a7319>] ieee80211_set_disassoc+0x193/0x378 [iwl7000_mac80211]
2018-05-02T10:27:34.574387-07:00 WARNING kernel: [  144.874323]  [<ffffffffc02abfdc>] ieee80211_mgd_deauth+0x200/0x241 [iwl7000_mac80211]
2018-05-02T10:27:34.574395-07:00 WARNING kernel: [  144.874434]  [<ffffffffc027cc74>] ieee80211_deauth+0x18/0x1a [iwl7000_mac80211]
2018-05-02T10:27:34.574399-07:00 WARNING kernel: [  144.874528]  [<ffffffffc01f8bd0>] cfg80211_mlme_deauth+0xdc/0x10f [cfg80211]
2018-05-02T10:27:34.574402-07:00 WARNING kernel: [  144.874617]  [<ffffffffc01f8dc3>] cfg80211_mlme_down+0x6b/0x83 [cfg80211]
2018-05-02T10:27:34.574406-07:00 WARNING kernel: [  144.874770]  [<ffffffffc01fc004>] cfg80211_disconnect+0xc6/0x159 [cfg80211]
2018-05-02T10:27:34.574433-07:00 WARNING kernel: [  144.874865]  [<ffffffffc01dc9b1>] __cfg80211_leave+0xd3/0xfa [cfg80211]
2018-05-02T10:27:34.575379-07:00 WARNING kernel: [  144.874949]  [<ffffffffc01dcbbd>] cfg80211_netdev_notifier_call+0x1e5/0x52f [cfg80211]
2018-05-02T10:27:34.575402-07:00 WARNING kernel: [  144.874997]  [<ffffffff8ca0b7a0>] raw_notifier_call_chain+0x3b/0x51
2018-05-02T10:27:34.575409-07:00 WARNING kernel: [  144.875035]  [<ffffffff8d0b2655>] call_netdevice_notifiers_info+0x53/0x5b
2018-05-02T10:27:34.575413-07:00 WARNING kernel: [  144.875070]  [<ffffffff8d0b2682>] call_netdevice_notifiers+0x25/0x3b
2018-05-02T10:27:34.575417-07:00 WARNING kernel: [  144.875102]  [<ffffffff8d0b282c>] __dev_close_many+0x69/0xca
2018-05-02T10:27:34.575421-07:00 WARNING kernel: [  144.875136]  [<ffffffff8d0b54ae>] dev_close_many+0x84/0x11b
2018-05-02T10:27:34.575424-07:00 WARNING kernel: [  144.875168]  [<ffffffff8d0b5594>] dev_close+0x4f/0x74
2018-05-02T10:27:34.575428-07:00 WARNING kernel: [  144.875239]  [<ffffffffc01dc5c2>] cfg80211_shutdown_all_interfaces+0x62/0x87 [cfg80211]
2018-05-02T10:27:34.575432-07:00 WARNING kernel: [  144.875344]  [<ffffffffc0278892>] ieee80211_remove_interfaces+0x6f/0x19e [iwl7000_mac80211]
2018-05-02T10:27:34.575436-07:00 WARNING kernel: [  144.875436]  [<ffffffffc02613d2>] __iwl7000_ieee80211_unregister_hw+0x4b/0x134 [iwl7000_mac80211]
2018-05-02T10:27:34.575439-07:00 WARNING kernel: [  144.875520]  [<ffffffffc03689ab>] iwl_op_mode_mvm_stop+0x59/0x141 [iwlmvm]
2018-05-02T10:27:34.575443-07:00 WARNING kernel: [  144.875591]  [<ffffffffc0368952>] ? iwl_mvm_rx+0xa8/0xa8 [iwlmvm]
2018-05-02T10:27:34.575447-07:00 WARNING kernel: [  144.875703]  [<ffffffffc031be87>] _iwl_op_mode_stop+0x3e/0x65 [iwlwifi]
2018-05-02T10:27:34.575450-07:00 WARNING kernel: [  144.875769]  [<ffffffffc031efea>] iwl_drv_stop+0x22/0xd4 [iwlwifi]
2018-05-02T10:27:34.575475-07:00 WARNING kernel: [  144.875876]  [<ffffffffc0323015>] iwl_pci_remove+0x2d/0x39 [iwlwifi]
2018-05-02T10:27:34.575489-07:00 WARNING kernel: [  144.875916]  [<ffffffff8cdb3976>] pci_device_remove+0x4b/0x96
2018-05-02T10:27:34.575512-07:00 WARNING kernel: [  144.875956]  [<ffffffff8cf01386>] __device_release_driver+0xbd/0x13c
2018-05-02T10:27:34.576310-07:00 WARNING kernel: [  144.875994]  [<ffffffff8cf01428>] device_release_driver+0x23/0x30
2018-05-02T10:27:34.576331-07:00 WARNING kernel: [  144.876031]  [<ffffffff8cdae725>] pci_stop_bus_device+0x4a/0x8d
2018-05-02T10:27:34.576338-07:00 WARNING kernel: [  144.876066]  [<ffffffff8cdae8cd>] pci_stop_and_remove_bus_device+0x13/0x1f
2018-05-02T10:27:34.576343-07:00 WARNING kernel: [  144.876131]  [<ffffffffc032d2c3>] iwl_trans_pcie_removal_wk+0x75/0xac [iwlwifi]
2018-05-02T10:27:34.576347-07:00 WARNING kernel: [  144.876175]  [<ffffffff8ca0aa71>] worker_thread+0x592/0x84f
2018-05-02T10:27:34.576350-07:00 WARNING kernel: [  144.876209]  [<ffffffff8ca0a4df>] ? flush_work+0x1c5/0x1c5
2018-05-02T10:27:34.576354-07:00 WARNING kernel: [  144.876242]  [<ffffffff8cbd701e>] kthread+0x111/0x119
2018-05-02T10:27:34.576358-07:00 WARNING kernel: [  144.876274]  [<ffffffff8cbc2045>] ? do_exit+0x947/0x96d
2018-05-02T10:27:34.576362-07:00 WARNING kernel: [  144.876309]  [<ffffffff8cbd6f0d>] ? __kthread_parkme+0x67/0x67
2018-05-02T10:27:34.576365-07:00 WARNING kernel: [  144.876342]  [<ffffffff8d19a692>] ret_from_fork+0x92/0xc0
2018-05-02T10:27:34.576369-07:00 WARNING kernel: [  144.876375]  [<ffffffff8cbd6f0d>] ? __kthread_parkme+0x67/0x67
2018-05-02T10:27:34.576373-07:00 WARNING kernel: [  144.876401] ---[ end trace 940e0c8671bead92 ]---
2018-05-02T10:27:34.637831-07:00 ERR kernel: [  144.938113] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:34.637923-07:00 ERR kernel: [  144.938300] iwlwifi 0000:02:00.0: Error sending MAC_CONTEXT_CMD: enqueue_hcmd failed: -5
2018-05-02T10:27:34.637934-07:00 ERR kernel: [  144.938342] iwlwifi 0000:02:00.0: Failed to send MAC context (action:2): -5
2018-05-02T10:27:34.637956-07:00 ERR kernel: [  144.938387] iwlwifi 0000:02:00.0: failed to update MAC 10:02:b5:e9:be:3e
2018-05-02T10:27:34.700087-07:00 ERR kernel: [  145.000223] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:34.700141-07:00 ERR kernel: [  145.000349] iwlwifi 0000:02:00.0: Error sending REPLY_SF_CFG_CMD: enqueue_hcmd failed: -5
2018-05-02T10:27:34.700197-07:00 WARNING kernel: [  145.000389] ------------[ cut here ]------------
2018-05-02T10:27:34.700203-07:00 WARNING kernel: [  145.000484] WARNING: CPU: 0 PID: 1472 at /mnt/host/source/src/third_party/kernel/v3.18/drivers/net/wireless/iwl7000/iwlwifi/mvm/mac80211.c:2149 iwl_mvm_bss_info_changed+0x26d/0x624 [iwlmvm]()
2018-05-02T10:27:34.700236-07:00 WARNING kernel: [  145.000537] Failed to update SF upon disassociation
2018-05-02T10:27:34.701651-07:00 WARNING kernel: [  145.000557] Modules linked in: cmac rfcomm uinput snd_hda_codec_hdmi snd_soc_sst_cht_bsw_max98090_ti snd_hda_intel snd_hda_codec snd_hwdep snd_intel_sst_acpi snd_soc_sst_acpi snd_intel_sst_core bridge stp llc snd_soc_sst_mfld_platform zram memconsole_x86_legacy memconsole snd_hda_core snd_soc_max98090 ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_mark fuse snd_seq_dummy iio_trig_sysfs snd_seq_midi snd_seq_midi_event snd_rawmidi cros_ec_sensors_ring cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_seq ip6table_filter snd_seq_device r8152 mii iwlmvm iwlwifi iwl7000_mac80211 cfg80211 btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core joydev
2018-05-02T10:27:34.701690-07:00 WARNING kernel: [  145.001073] CPU: 0 PID: 1472 Comm: kworker/0:2 Tainted: G        W      3.18.0 #1
2018-05-02T10:27:34.701694-07:00 WARNING kernel: [  145.001098] Hardware name: GOOGLE Cyan, BIOS Google_Cyan.7287.57.125 06/06/2017
2018-05-02T10:27:34.701697-07:00 WARNING kernel: [  145.001159] Workqueue: events iwl_trans_pcie_removal_wk [iwlwifi]
2018-05-02T10:27:34.701699-07:00 WARNING kernel: [  145.001184]  0000000000000000 0000000064cc7061 ffff8801756f7738 ffffffff8d195a40
2018-05-02T10:27:34.701702-07:00 WARNING kernel: [  145.001226]  0000000000000000 ffff8801756f7790 ffff8801756f7778 ffffffff8cbbfc73
2018-05-02T10:27:34.701704-07:00 WARNING kernel: [  145.001267]  000000000000ddbc ffff880078281928 ffff880178a69538 ffff880078281920
2018-05-02T10:27:34.701707-07:00 WARNING kernel: [  145.001309] Call Trace:
2018-05-02T10:27:34.701709-07:00 WARNING kernel: [  145.001346]  [<ffffffff8d195a40>] dump_stack+0x4e/0x71
2018-05-02T10:27:34.701711-07:00 WARNING kernel: [  145.001380]  [<ffffffff8cbbfc73>] warn_slowpath_common+0x84/0x9f
2018-05-02T10:27:34.701713-07:00 WARNING kernel: [  145.001412]  [<ffffffff8cbbfd87>] warn_slowpath_fmt+0x55/0x6b
2018-05-02T10:27:34.701716-07:00 WARNING kernel: [  145.001484]  [<ffffffffc036653a>] iwl_mvm_bss_info_changed+0x26d/0x624 [iwlmvm]
2018-05-02T10:27:34.701718-07:00 WARNING kernel: [  145.001573]  [<ffffffffc0262beb>] ieee80211_bss_info_change_notify+0x186/0x19a [iwl7000_mac80211]
2018-05-02T10:27:34.701721-07:00 WARNING kernel: [  145.001785]  [<ffffffffc02a7411>] ieee80211_set_disassoc+0x28b/0x378 [iwl7000_mac80211]
2018-05-02T10:27:34.701723-07:00 WARNING kernel: [  145.001913]  [<ffffffffc02abfdc>] ieee80211_mgd_deauth+0x200/0x241 [iwl7000_mac80211]
2018-05-02T10:27:34.701725-07:00 WARNING kernel: [  145.002025]  [<ffffffffc027cc74>] ieee80211_deauth+0x18/0x1a [iwl7000_mac80211]
2018-05-02T10:27:34.701795-07:00 WARNING kernel: [  145.002154]  [<ffffffffc01f8bd0>] cfg80211_mlme_deauth+0xdc/0x10f [cfg80211]
2018-05-02T10:27:34.701801-07:00 WARNING kernel: [  145.002243]  [<ffffffffc01f8dc3>] cfg80211_mlme_down+0x6b/0x83 [cfg80211]
2018-05-02T10:27:34.702235-07:00 WARNING kernel: [  145.002337]  [<ffffffffc01fc004>] cfg80211_disconnect+0xc6/0x159 [cfg80211]
2018-05-02T10:27:34.702250-07:00 WARNING kernel: [  145.002409]  [<ffffffffc01dc9b1>] __cfg80211_leave+0xd3/0xfa [cfg80211]
2018-05-02T10:27:34.702254-07:00 WARNING kernel: [  145.002480]  [<ffffffffc01dcbbd>] cfg80211_netdev_notifier_call+0x1e5/0x52f [cfg80211]
2018-05-02T10:27:34.702256-07:00 WARNING kernel: [  145.002526]  [<ffffffff8ca0b7a0>] raw_notifier_call_chain+0x3b/0x51
2018-05-02T10:27:34.702278-07:00 WARNING kernel: [  145.002563]  [<ffffffff8d0b2655>] call_netdevice_notifiers_info+0x53/0x5b
2018-05-02T10:27:34.702282-07:00 WARNING kernel: [  145.002597]  [<ffffffff8d0b2682>] call_netdevice_notifiers+0x25/0x3b
2018-05-02T10:27:34.702285-07:00 WARNING kernel: [  145.002672]  [<ffffffff8d0b282c>] __dev_close_many+0x69/0xca
2018-05-02T10:27:34.702310-07:00 WARNING kernel: [  145.002725]  [<ffffffff8d0b54ae>] dev_close_many+0x84/0x11b
2018-05-02T10:27:34.702314-07:00 WARNING kernel: [  145.002761]  [<ffffffff8d0b5594>] dev_close+0x4f/0x74
2018-05-02T10:27:34.703293-07:00 WARNING kernel: [  145.002837]  [<ffffffffc01dc5c2>] cfg80211_shutdown_all_interfaces+0x62/0x87 [cfg80211]
2018-05-02T10:27:34.703306-07:00 WARNING kernel: [  145.002941]  [<ffffffffc0278892>] ieee80211_remove_interfaces+0x6f/0x19e [iwl7000_mac80211]
2018-05-02T10:27:34.703310-07:00 WARNING kernel: [  145.003030]  [<ffffffffc02613d2>] __iwl7000_ieee80211_unregister_hw+0x4b/0x134 [iwl7000_mac80211]
2018-05-02T10:27:34.703313-07:00 WARNING kernel: [  145.003104]  [<ffffffffc03689ab>] iwl_op_mode_mvm_stop+0x59/0x141 [iwlmvm]
2018-05-02T10:27:34.703315-07:00 WARNING kernel: [  145.003173]  [<ffffffffc0368952>] ? iwl_mvm_rx+0xa8/0xa8 [iwlmvm]
2018-05-02T10:27:34.703317-07:00 WARNING kernel: [  145.003231]  [<ffffffffc031be87>] _iwl_op_mode_stop+0x3e/0x65 [iwlwifi]
2018-05-02T10:27:34.703326-07:00 WARNING kernel: [  145.003292]  [<ffffffffc031efea>] iwl_drv_stop+0x22/0xd4 [iwlwifi]
2018-05-02T10:27:34.703328-07:00 WARNING kernel: [  145.003353]  [<ffffffffc0323015>] iwl_pci_remove+0x2d/0x39 [iwlwifi]
2018-05-02T10:27:34.703331-07:00 WARNING kernel: [  145.003391]  [<ffffffff8cdb3976>] pci_device_remove+0x4b/0x96
2018-05-02T10:27:34.703333-07:00 WARNING kernel: [  145.003431]  [<ffffffff8cf01386>] __device_release_driver+0xbd/0x13c
2018-05-02T10:27:34.703335-07:00 WARNING kernel: [  145.003464]  [<ffffffff8cf01428>] device_release_driver+0x23/0x30
2018-05-02T10:27:34.703338-07:00 WARNING kernel: [  145.003498]  [<ffffffff8cdae725>] pci_stop_bus_device+0x4a/0x8d
2018-05-02T10:27:34.703340-07:00 WARNING kernel: [  145.003531]  [<ffffffff8cdae8cd>] pci_stop_and_remove_bus_device+0x13/0x1f
2018-05-02T10:27:34.703342-07:00 WARNING kernel: [  145.003596]  [<ffffffffc032d2c3>] iwl_trans_pcie_removal_wk+0x75/0xac [iwlwifi]
2018-05-02T10:27:34.703344-07:00 WARNING kernel: [  145.003673]  [<ffffffff8ca0aa71>] worker_thread+0x592/0x84f
2018-05-02T10:27:34.703347-07:00 WARNING kernel: [  145.003710]  [<ffffffff8ca0a4df>] ? flush_work+0x1c5/0x1c5
2018-05-02T10:27:34.703366-07:00 WARNING kernel: [  145.003781]  [<ffffffff8cbd701e>] kthread+0x111/0x119
2018-05-02T10:27:34.703370-07:00 WARNING kernel: [  145.003813]  [<ffffffff8cbc2045>] ? do_exit+0x947/0x96d
2018-05-02T10:27:34.765606-07:00 WARNING kernel: [  145.003856]  [<ffffffff8cbd6f0d>] ? __kthread_parkme+0x67/0x67
2018-05-02T10:27:34.765647-07:00 WARNING kernel: [  145.003889]  [<ffffffff8d19a692>] ret_from_fork+0x92/0xc0
2018-05-02T10:27:34.765652-07:00 WARNING kernel: [  145.003922]  [<ffffffff8cbd6f0d>] ? __kthread_parkme+0x67/0x67
2018-05-02T10:27:34.765655-07:00 WARNING kernel: [  145.003951] ---[ end trace 940e0c8671bead93 ]---
2018-05-02T10:27:34.765657-07:00 ERR kernel: [  145.065832] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:34.765660-07:00 ERR kernel: [  145.065995] iwlwifi 0000:02:00.0: Error sending REMOVE_STA: enqueue_hcmd failed: -5
2018-05-02T10:27:34.765682-07:00 ERR kernel: [  145.066065] iwlwifi 0000:02:00.0: Failed to remove station. Id=0
2018-05-02T10:27:34.765687-07:00 ERR kernel: [  145.066094] iwlwifi 0000:02:00.0: failed to remove AP station
2018-05-02T10:27:34.828336-07:00 ERR kernel: [  145.128274] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:34.828391-07:00 ERR kernel: [  145.128391] iwlwifi 0000:02:00.0: Error sending TIME_QUOTA_CMD: enqueue_hcmd failed: -5
2018-05-02T10:27:34.828399-07:00 ERR kernel: [  145.128430] iwlwifi 0000:02:00.0: Failed to send quota: -5
2018-05-02T10:27:34.828404-07:00 ERR kernel: [  145.128457] iwlwifi 0000:02:00.0: failed to update quotas
2018-05-02T10:27:34.890416-07:00 ERR kernel: [  145.190435] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:34.952656-07:00 ERR kernel: [  145.191004] iwlwifi 0000:02:00.0: Error sending MAC_CONTEXT_CMD: enqueue_hcmd failed: -5
2018-05-02T10:27:34.952735-07:00 ERR kernel: [  145.191058] iwlwifi 0000:02:00.0: Failed to send MAC context (action:2): -5
2018-05-02T10:27:34.952751-07:00 ERR kernel: [  145.191095] iwlwifi 0000:02:00.0: failed to update MAC 10:02:b5:e9:be:3e (clear after unassoc)
2018-05-02T10:27:34.952760-07:00 ERR kernel: [  145.252678] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:34.952769-07:00 ERR kernel: [  145.252847] iwlwifi 0000:02:00.0: Error sending MAC_PM_POWER_TABLE: enqueue_hcmd failed: -5
2018-05-02T10:27:34.952777-07:00 ERR kernel: [  145.252890] iwlwifi 0000:02:00.0: failed to update power mode
2018-05-02T10:27:35.014349-07:00 ERR kernel: [  145.314644] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:35.014419-07:00 ERR kernel: [  145.314761] iwlwifi 0000:02:00.0: Error sending TIME_QUOTA_CMD: enqueue_hcmd failed: -5
2018-05-02T10:27:35.014493-07:00 ERR kernel: [  145.314811] iwlwifi 0000:02:00.0: Failed to send quota: -5
2018-05-02T10:27:35.076388-07:00 ERR kernel: [  145.376272] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:35.076466-07:00 ERR kernel: [  145.376436] iwlwifi 0000:02:00.0: Error sending BINDING_CONTEXT_CMD: enqueue_hcmd failed: -5
2018-05-02T10:27:35.076484-07:00 ERR kernel: [  145.376475] iwlwifi 0000:02:00.0: Failed to send binding (action:3): -5
2018-05-02T10:27:35.138341-07:00 ERR kernel: [  145.438384] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:35.138390-07:00 ERR kernel: [  145.438533] iwlwifi 0000:02:00.0: Error sending MAC_PM_POWER_TABLE: enqueue_hcmd failed: -5
2018-05-02T10:27:35.200170-07:00 ERR kernel: [  145.500410] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:35.200220-07:00 ERR kernel: [  145.500593] iwlwifi 0000:02:00.0: Error sending MAC_CONTEXT_CMD: enqueue_hcmd failed: -5
2018-05-02T10:27:35.200243-07:00 ERR kernel: [  145.500671] iwlwifi 0000:02:00.0: Failed to send MAC context (action:2): -5
2018-05-02T10:27:35.262387-07:00 ERR kernel: [  145.500705] iwlwifi 0000:02:00.0: failed to update MAC 10:02:b5:e9:be:3e
2018-05-02T10:27:35.262430-07:00 ERR kernel: [  145.562392] iwlwifi 0000:02:00.0: Failed to wake NIC for hcmd
2018-05-02T10:27:35.263277-07:00 ERR kernel: [  145.562917] iwlwifi 0000:02:00.0: Error sending PHY_CONTEXT_CMD: enqueue_hcmd failed: -5
2018-05-02T10:27:35.263296-07:00 ERR kernel: [  145.562959] iwlwifi 0000:02:00.0: PHY ctxt cmd error. ret=-5
2018-05-02T10:27:37.326796-07:00 ERR kernel: [  147.564604] iwlwifi 0000:02:00.0: fail to flush all tx fifo queues Q 4