iwlwifi 0000:03:00.0: Microcode SW error detected.  Restarting 0x2000000.
[ 1193.655775] iwlwifi 0000:03:00.0: CSR values:
[ 1193.655780] iwlwifi 0000:03:00.0: (2nd byte of CSR_INT_COALESCING is 
CSR_INT_PERIODIC_REG)
[ 1193.655790] iwlwifi 0000:03:00.0:        CSR_HW_IF_CONFIG_REG: 0X00488304
[ 1193.655799] iwlwifi 0000:03:00.0:          CSR_INT_COALESCING: 0X0000ff40
[ 1193.655808] iwlwifi 0000:03:00.0:                     CSR_INT: 0X00000000
[ 1193.655817] iwlwifi 0000:03:00.0:                CSR_INT_MASK: 0X00000000
[ 1193.655825] iwlwifi 0000:03:00.0:           CSR_FH_INT_STATUS: 0X00000000
[ 1193.655833] iwlwifi 0000:03:00.0:                 CSR_GPIO_IN: 0X00000000
[ 1193.655842] iwlwifi 0000:03:00.0:                   CSR_RESET: 0X00000000
[ 1193.655850] iwlwifi 0000:03:00.0:                CSR_GP_CNTRL: 0X080403c5
[ 1193.655858] iwlwifi 0000:03:00.0:                  CSR_HW_REV: 0X00000024
[ 1193.655867] iwlwifi 0000:03:00.0:              CSR_EEPROM_REG: 0X00000000
[ 1193.655876] iwlwifi 0000:03:00.0:               CSR_EEPROM_GP: 0X90000004
[ 1193.655884] iwlwifi 0000:03:00.0:              CSR_OTP_GP_REG: 0X00060000
[ 1193.655893] iwlwifi 0000:03:00.0:                 CSR_GIO_REG: 0X00080044
[ 1193.655901] iwlwifi 0000:03:00.0:            CSR_GP_UCODE_REG: 0X0000089f
[ 1193.655909] iwlwifi 0000:03:00.0:           CSR_GP_DRIVER_REG: 0X00000000
[ 1193.655918] iwlwifi 0000:03:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
[ 1193.655926] iwlwifi 0000:03:00.0:           CSR_UCODE_DRV_GP2: 0X00000000
[ 1193.655935] iwlwifi 0000:03:00.0:                 CSR_LED_REG: 0X00000040
[ 1193.655943] iwlwifi 0000:03:00.0:        CSR_DRAM_INT_TBL_REG: 0X8803637b
[ 1193.655951] iwlwifi 0000:03:00.0:        CSR_GIO_CHICKEN_BITS: 0X27800200
[ 1193.655960] iwlwifi 0000:03:00.0:             CSR_ANA_PLL_CFG: 0X00880300
[ 1193.655968] iwlwifi 0000:03:00.0:           CSR_HW_REV_WA_REG: 0X0001001a
[ 1193.655977] iwlwifi 0000:03:00.0:        CSR_DBG_HPET_MEM_REG: 0Xffff0000
[ 1193.655983] iwlwifi 0000:03:00.0: FH register values:
[ 1193.656048] iwlwifi 0000:03:00.0:         FH_RSCSR_CHNL0_STTS_WPTR_REG: 
0X1314d100
[ 1193.656068] iwlwifi 0000:03:00.0:        FH_RSCSR_CHNL0_RBDCB_BASE_REG: 
0X0134b570
[ 1193.656093] iwlwifi 0000:03:00.0:                  FH_RSCSR_CHNL0_WPTR: 
0X000000e8
[ 1193.656120] iwlwifi 0000:03:00.0:         FH_MEM_RCSR_CHNL0_CONFIG_REG: 
0X80801114
[ 1193.656145] iwlwifi 0000:03:00.0:          FH_MEM_RSSR_SHARED_CTRL_REG: 
0X000000fc
[ 1193.656164] iwlwifi 0000:03:00.0:            FH_MEM_RSSR_RX_STATUS_REG: 
0X07030000
[ 1193.656183] iwlwifi 0000:03:00.0:    FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 
0X00000000
[ 1193.656204] iwlwifi 0000:03:00.0:                FH_TSSR_TX_STATUS_REG: 
0X07ff0001
[ 1193.656226] iwlwifi 0000:03:00.0:                 FH_TSSR_TX_ERROR_REG: 
0X00000000
[ 1193.656236] iwlwifi 0000:03:00.0: Loaded firmware version: 8.83.5.1 build 
33692
[ 1193.656398] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
[ 1193.656405] iwlwifi 0000:03:00.0: Status: 0x0000004C, count: 5
[ 1193.656411] iwlwifi 0000:03:00.0: 0x00000005 | SYSASSERT                   
[ 1193.656417] iwlwifi 0000:03:00.0: 0x0000325C | uPc
[ 1193.656422] iwlwifi 0000:03:00.0: 0x0000312A | branchlink1
[ 1193.656427] iwlwifi 0000:03:00.0: 0x0000312A | branchlink2
[ 1193.656432] iwlwifi 0000:03:00.0: 0x00000916 | interruptlink1
[ 1193.656438] iwlwifi 0000:03:00.0: 0x00000000 | interruptlink2
[ 1193.656443] iwlwifi 0000:03:00.0: 0x44408010 | data1
[ 1193.656448] iwlwifi 0000:03:00.0: 0x61480000 | data2
[ 1193.656453] iwlwifi 0000:03:00.0: 0x00000599 | line
[ 1193.656459] iwlwifi 0000:03:00.0: 0x00018DF2 | beacon time
[ 1193.656464] iwlwifi 0000:03:00.0: 0x0000020E | tsf low
[ 1193.656469] iwlwifi 0000:03:00.0: 0x00000000 | tsf hi
[ 1193.656474] iwlwifi 0000:03:00.0: 0x00000000 | time gp1
[ 1193.656479] iwlwifi 0000:03:00.0: 0x0077525A | time gp2
[ 1193.656484] iwlwifi 0000:03:00.0: 0x00000000 | time gp3
[ 1193.656489] iwlwifi 0000:03:00.0: 0x00010853 | uCode version
[ 1193.656494] iwlwifi 0000:03:00.0: 0x00000024 | hw version
[ 1193.656500] iwlwifi 0000:03:00.0: 0x00488304 | board version
[ 1193.656505] iwlwifi 0000:03:00.0: 0x0461004E | hcmd
[ 1193.656510] iwlwifi 0000:03:00.0: 0x00022080 | isr0
[ 1193.656515] iwlwifi 0000:03:00.0: 0x0103E000 | isr1
[ 1193.656520] iwlwifi 0000:03:00.0: 0x00000002 | isr2
[ 1193.656525] iwlwifi 0000:03:00.0: 0x0041FCC0 | isr3
[ 1193.656530] iwlwifi 0000:03:00.0: 0x01000112 | isr4
[ 1193.656535] iwlwifi 0000:03:00.0: 0x00017D3C | isr_pref
[ 1193.656541] iwlwifi 0000:03:00.0: 0x00000080 | wait_event
[ 1193.656546] iwlwifi 0000:03:00.0: 0x00000000 | l2p_control
[ 1193.656551] iwlwifi 0000:03:00.0: 0x0000003F | l2p_duration
[ 1193.656557] iwlwifi 0000:03:00.0: 0x00000200 | l2p_mhvalid
[ 1193.656562] iwlwifi 0000:03:00.0: 0x00000005 | l2p_addr_match
[ 1193.656567] iwlwifi 0000:03:00.0: 0x02121704 | lmpm_pmg_sel
[ 1193.656572] iwlwifi 0000:03:00.0: 0x0000E8F8 | timestamp
[ 1193.656577] iwlwifi 0000:03:00.0: 0x00000100 | flow_handler
[ 1193.656641] iwlwifi 0000:03:00.0: Start IWL Event Log Dump: display last 20 
entries
[ 1193.656666] iwlwifi 0000:03:00.0: EVT_LOGT:0007819414:0x00000202:1555
[ 1193.656681] iwlwifi 0000:03:00.0: EVT_LOGT:0007819429:0x000001c5:0103
[ 1193.656697] iwlwifi 0000:03:00.0: EVT_LOGT:0007819431:0x00020000:1550
[ 1193.656712] iwlwifi 0000:03:00.0: EVT_LOGT:0007819433:0x00000011:1550
[ 1193.656727] iwlwifi 0000:03:00.0: EVT_LOGT:0007819434:0x00020000:1555
[ 1193.656744] iwlwifi 0000:03:00.0: EVT_LOGT:0007819435:0x00000000:1555
[ 1193.656759] iwlwifi 0000:03:00.0: EVT_LOGT:0007819435:0x00000206:1555
[ 1193.656775] iwlwifi 0000:03:00.0: EVT_LOGT:0007819436:0x00020000:1552
[ 1193.656790] iwlwifi 0000:03:00.0: EVT_LOGT:0007819437:0x00000000:1550
[ 1193.656805] iwlwifi 0000:03:00.0: EVT_LOGT:0007819450:0x007750ba:1110
[ 1193.656821] iwlwifi 0000:03:00.0: EVT_LOGT:0007819451:0x00000000:1110
[ 1193.656836] iwlwifi 0000:03:00.0: EVT_LOGT:0007819489:0x0000001d:1111
[ 1193.656853] iwlwifi 0000:03:00.0: EVT_LOGT:0007819490:0x0000001d:0454
[ 1193.656869] iwlwifi 0000:03:00.0: EVT_LOGT:0007819491:0x00000000:0472
[ 1193.656887] iwlwifi 0000:03:00.0: EVT_LOGT:0007819497:0x00000030:0460
[ 1193.656904] iwlwifi 0000:03:00.0: EVT_LOGT:0007819498:0x0000001d:0487
[ 1193.656918] iwlwifi 0000:03:00.0: FW error in SYNC CMD 
REPLY_TX_LINK_QUALITY_CMD
[ 1193.656922] iwlwifi 0000:03:00.0: EVT_LOGT:0007819500:0x00000000:0651
[ 1193.656935] CPU: 0 PID: 3851 Comm: kworker/u8:57 Not tainted 
3.13.0-44-generic #73-Ubuntu
[ 1193.656938] iwlwifi 0000:03:00.0: EVT_LOGT:0007819726:0x04600018:0401
[ 1193.656945] Hardware name: LENOVO 27763RG/27763RG, BIOS 6EET54WW (3.14 ) 
12/10/2010
[ 1193.656979] iwlwifi 0000:03:00.0: EVT_LOGT:0007819858:0x0461004e:0401
[ 1193.656983] Workqueue: iwlwifi iwl_bg_scan_completed [iwldvm]
[ 1193.656993] iwlwifi 0000:03:00.0: EVT_LOGT:0007819871:0x00000000:0125
[ 1193.656988]  ffff8800b5787218 ffff8800ab11daf8 ffffffff81720d86 
ffff8800b5784000
[ 1193.657001]  ffff8800ab11db68 ffffffffa0353668 ffff8800ab11db30 
0000001400000001
[ 1193.657009]  ffff880000000000 ffff880035dbc800 ffffffff810ab0b0 
ffff8800ab11db30
[ 1193.657016] Call Trace:
[ 1193.657031]  [<ffffffff81720d86>] dump_stack+0x45/0x56
[ 1193.657059]  [<ffffffffa0353668>] iwl_trans_pcie_send_hcmd+0x668/0x690 
[iwlwifi]
[ 1193.657071]  [<ffffffff810ab0b0>] ? prepare_to_wait_event+0x100/0x100
[ 1193.657090]  [<ffffffffa044a5b6>] iwl_dvm_send_cmd+0x46/0x110 [iwldvm]
[ 1193.657109]  [<ffffffffa044fb90>] iwl_send_lq_cmd+0xb0/0x1f0 [iwldvm]
[ 1193.657127]  [<ffffffffa044ff8e>] iwl_restore_stations+0x2be/0x3a0 [iwldvm]
[ 1193.657146]  [<ffffffffa0456811>] iwlagn_commit_rxon+0x821/0xe10 [iwldvm]
[ 1193.657165]  [<ffffffffa045302b>] ? iwl_power_set_mode+0x3b/0x300 [iwldvm]
[ 1193.657211]  [<ffffffffa0556e55>] ? ieee80211_queue_delayed_work+0x45/0x50 
[mac80211]
[ 1193.657230]  [<ffffffffa0457816>] iwlagn_post_scan+0x96/0xb0 [iwldvm]
[ 1193.657248]  [<ffffffffa0454942>] iwl_process_scan_complete+0xa2/0x160 
[iwldvm]
[ 1193.657266]  [<ffffffffa0454c78>] iwl_bg_scan_completed+0x28/0x40 [iwldvm]
[ 1193.657275]  [<ffffffff81083a52>] process_one_work+0x182/0x450
[ 1193.657283]  [<ffffffff81084841>] worker_thread+0x121/0x410
[ 1193.657290]  [<ffffffff81084720>] ? rescuer_thread+0x430/0x430
[ 1193.657298]  [<ffffffff8108b572>] kthread+0xd2/0xf0
[ 1193.657305]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
[ 1193.657313]  [<ffffffff817317bc>] ret_from_fork+0x7c/0xb0
[ 1193.657320]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
[ 1193.657329] iwlwifi 0000:03:00.0: Command REPLY_ADD_STA failed: FW Error
[ 1193.657336] iwlwifi 0000:03:00.0: Adding station ff:ff:ff:ff:ff:ff failed.
[ 1193.657655] ieee80211 phy0: Hardware restart was requested
[ 1193.657662] iwlwifi 0000:03:00.0: Request scan called when driver not ready.
[ 1193.658533] iwlwifi 0000:03:00.0: L1 Disabled - LTR Disabled
[ 1193.658956] iwlwifi 0000:03:00.0: Radio type=0x0-0x2-0x0
[ 1193.760114] wlan0: send auth to 24:65:11:fe:a3:9b (try 2/3)
[ 1193.770436] wlan0: authenticated

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https://bugs.launchpad.net/bugs/1222440

Title:
  iwlwifi 0000:01:00.0: Microcode SW error detected.  Restarting
  0x2000000.

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