Hi, I'm running Linux-3.5.0 with iwlagn built into the kernel and I'm getting frequent hangs of my WiFi card, which is an Intel Centrino Advanced-N 6205 (rev 34). This previously worked flawlessly with Linux-3.3.0 Is this a known problem, for which a patch already exists? Cheers, Udo The following are two examples: iwlwifi: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree: iwlwifi: Copyright(c) 2003-2012 Intel Corporation iwlwifi 0000:03:00.0: pci_resource_len = 0x00002000 iwlwifi 0000:03:00.0: pci_resource_base = ffffc9000007c000 iwlwifi 0000:03:00.0: HW Revision ID = 0x34 iwlwifi 0000:03:00.0: irq 45 for MSI/MSI-X udevd[100]: starting version 182 iwlwifi 0000:03:00.0: loaded firmware version 17.168.5.3 build 42301 iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Advanced-N 6205 AGN, REV=0xB0 iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S iwlwifi 0000:03:00.0: device EEPROM VER=0x715, CALIB=0x6 iwlwifi 0000:03:00.0: Device SKU: 0x1F0 iwlwifi 0000:03:00.0: Valid Tx ant: 0x3, Valid Rx ant: 0x3 iwlwifi 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels cfg80211: Calling CRDA to update world regulatory domain cfg80211: World regulatory domain updated: cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) cfg80211: Calling CRDA for country: DE cfg80211: Regulatory domain changed to country: DE cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) cfg80211: (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm) cfg80211: (5150000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm) cfg80211: (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm) wlan0: authenticate with c0:25:06:6a:3d:86 wlan0: send auth to c0:25:06:6a:3d:86 (try 1/3) wlan0: send auth to c0:25:06:6a:3d:86 (try 2/3) wlan0: authenticated iwlwifi 0000:03:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:03:00.0: CSR values: iwlwifi 0000:03:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG) iwlwifi 0000:03:00.0: CSR_HW_IF_CONFIG_REG: 0X00480303 iwlwifi 0000:03:00.0: CSR_INT_COALESCING: 0X0000ff40 iwlwifi 0000:03:00.0: CSR_INT: 0X00000000 iwlwifi 0000:03:00.0: CSR_INT_MASK: 0X00000000 iwlwifi 0000:03:00.0: CSR_FH_INT_STATUS: 0X00000000 iwlwifi 0000:03:00.0: CSR_GPIO_IN: 0X00000030 iwlwifi 0000:03:00.0: CSR_RESET: 0X00000000 iwlwifi 0000:03:00.0: CSR_GP_CNTRL: 0X080403c5 iwlwifi 0000:03:00.0: CSR_HW_REV: 0X000000b0 iwlwifi 0000:03:00.0: CSR_EEPROM_REG: 0X27d40ffd iwlwifi 0000:03:00.0: CSR_EEPROM_GP: 0X90000001 iwlwifi 0000:03:00.0: CSR_OTP_GP_REG: 0X00030001 iwlwifi 0000:03:00.0: CSR_GIO_REG: 0X00080042 iwlwifi 0000:03:00.0: CSR_GP_UCODE_REG: 0X000002f9 iwlwifi 0000:03:00.0: CSR_GP_DRIVER_REG: 0X00000000 iwlwifi 0000:03:00.0: CSR_UCODE_DRV_GP1: 0X00000000 iwlwifi 0000:03:00.0: CSR_UCODE_DRV_GP2: 0X00000000 iwlwifi 0000:03:00.0: CSR_LED_REG: 0X00000078 iwlwifi 0000:03:00.0: CSR_DRAM_INT_TBL_REG: 0X880fff5f iwlwifi 0000:03:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200 iwlwifi 0000:03:00.0: CSR_ANA_PLL_CFG: 0X00000000 iwlwifi 0000:03:00.0: CSR_HW_REV_WA_REG: 0X0001001a iwlwifi 0000:03:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000 iwlwifi 0000:03:00.0: FH register values: iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X0fff5d00 iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X00fff5e0 iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_WPTR: 0X000000b8 iwlwifi 0000:03:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80811104 iwlwifi 0000:03:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc iwlwifi 0000:03:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000 iwlwifi 0000:03:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000 iwlwifi 0000:03:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001 iwlwifi 0000:03:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000 iwlwifi 0000:03:00.0: Loaded firmware version: 17.168.5.3 build 42301 iwlwifi 0000:03:00.0: Start IWL Error Log Dump: iwlwifi 0000:03:00.0: Status: 0x0000005C, count: 6 iwlwifi 0000:03:00.0: 0x000019A8 | ADVANCED_SYSASSERT iwlwifi 0000:03:00.0: 0x00015424 | uPc iwlwifi 0000:03:00.0: 0x000093F4 | branchlink1 iwlwifi 0000:03:00.0: 0x000093F4 | branchlink2 iwlwifi 0000:03:00.0: 0x0000D1F2 | interruptlink1 iwlwifi 0000:03:00.0: 0x00000000 | interruptlink2 iwlwifi 0000:03:00.0: 0x00000001 | data1 iwlwifi 0000:03:00.0: 0x000B0002 | data2 iwlwifi 0000:03:00.0: 0x000000E2 | line iwlwifi 0000:03:00.0: 0x00018D71 | beacon time iwlwifi 0000:03:00.0: 0x0000028E | tsf low iwlwifi 0000:03:00.0: 0x00000000 | tsf hi iwlwifi 0000:03:00.0: 0x00000000 | time gp1 iwlwifi 0000:03:00.0: 0x002D7A6A | time gp2 iwlwifi 0000:03:00.0: 0x00000000 | time gp3 iwlwifi 0000:03:00.0: 0x000111A8 | uCode version iwlwifi 0000:03:00.0: 0x000000B0 | hw version iwlwifi 0000:03:00.0: 0x00480303 | board version iwlwifi 0000:03:00.0: 0x093E004E | hcmd iwlwifi 0000:03:00.0: 0xA7C63080 | isr0 iwlwifi 0000:03:00.0: 0x0101E000 | isr1 iwlwifi 0000:03:00.0: 0x00000E02 | isr2 iwlwifi 0000:03:00.0: 0x0143B8C2 | isr3 iwlwifi 0000:03:00.0: 0x00000000 | isr4 iwlwifi 0000:03:00.0: 0x01000112 | isr_pref iwlwifi 0000:03:00.0: 0x00014EAC | wait_event iwlwifi 0000:03:00.0: 0x000008B0 | l2p_control iwlwifi 0000:03:00.0: 0x0000013A | l2p_duration iwlwifi 0000:03:00.0: 0x0000003F | l2p_mhvalid iwlwifi 0000:03:00.0: 0x001155C0 | l2p_addr_match iwlwifi 0000:03:00.0: 0x00000005 | lmpm_pmg_sel iwlwifi 0000:03:00.0: 0x07061735 | timestamp iwlwifi 0000:03:00.0: 0x0000B8C8 | flow_handler iwlwifi 0000:03:00.0: Start IWL Event Log Dump: display last 20 entries iwlwifi 0000:03:00.0: EVT_LOGT:0002980080:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0002980332:0x093d0018:0401 iwlwifi 0000:03:00.0: EVT_LOGT:0002980353:0x00020000:1550 iwlwifi 0000:03:00.0: EVT_LOGT:0002980356:0x00000011:1550 iwlwifi 0000:03:00.0: EVT_LOGT:0002980357:0x00020000:1555 iwlwifi 0000:03:00.0: EVT_LOGT:0002980358:0x00000000:1555 iwlwifi 0000:03:00.0: EVT_LOGT:0002980358:0x000001eb:1555 iwlwifi 0000:03:00.0: EVT_LOGT:0002980359:0x00020000:1552 iwlwifi 0000:03:00.0: EVT_LOGT:0002980360:0x00000000:1550 iwlwifi 0000:03:00.0: EVT_LOGT:0002980395:0x002d7a2b:1110 iwlwifi 0000:03:00.0: EVT_LOGT:0002980396:0x00000000:1110 iwlwifi 0000:03:00.0: EVT_LOGT:0002980438:0x00000022:1111 iwlwifi 0000:03:00.0: EVT_LOGT:0002980439:0x00000022:0454 iwlwifi 0000:03:00.0: EVT_LOGT:0002980440:0x00000000:0472 iwlwifi 0000:03:00.0: EVT_LOGT:0002980445:0x0000000b:0463 iwlwifi 0000:03:00.0: EVT_LOGT:0002980446:0x00000022:0487 iwlwifi 0000:03:00.0: EVT_LOGT:0002980448:0x00000000:0663 iwlwifi 0000:03:00.0: EVT_LOGT:0002980449:0x00000022:1592 iwlwifi 0000:03:00.0: EVT_LOGT:0002980452:0x093e004e:0401 iwlwifi 0000:03:00.0: EVT_LOGT:0002980477:0x00000000:0125 iwlwifi 0000:03:00.0: Error sending REPLY_TX_LINK_QUALITY_CMD: time out after 2000ms. iwlwifi 0000:03:00.0: Current CMD queue read_ptr 62 write_ptr 63 iwlwifi 0000:03:00.0: Command REPLY_ADD_STA failed: FW Error iwlwifi 0000:03:00.0: Adding station ff:ff:ff:ff:ff:ff failed. ieee80211 phy0: Hardware restart was requested iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0 wlan0: associate with c0:25:06:6a:3d:86 (try 1/3) wlan0: RX AssocResp from c0:25:06:6a:3d:86 (capab=0x431 status=0 aid=4) wlan0: associated cfg80211: Calling CRDA to update world regulatory domain cfg80211: World regulatory domain updated: cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) cfg80211: Calling CRDA for country: DE cfg80211: Regulatory domain changed to country: DE cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) cfg80211: (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm) cfg80211: (5150000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm) cfg80211: (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm) wlan0: authenticate with c0:25:06:6a:3d:86 wlan0: send auth to c0:25:06:6a:3d:86 (try 1/3) wlan0: authenticated wlan0: associate with c0:25:06:6a:3d:86 (try 1/3) wlan0: RX AssocResp from c0:25:06:6a:3d:86 (capab=0x431 status=0 aid=1) wlan0: associated cfg80211: Calling CRDA for country: DE cfg80211: Regulatory domain changed to country: DE cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) cfg80211: (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm) cfg80211: (5150000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm) cfg80211: (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm) iwlwifi 0000:03:00.0: fail to flush all tx fifo queues iwlwifi 0000:03:00.0: Queue 11 stuck for 10000 ms. iwlwifi 0000:03:00.0: Current SW read_ptr 43 write_ptr 201 iwlwifi 0000:03:00.0: Current HW read_ptr 43 write_ptr 201 iwlwifi 0000:03:00.0: Loaded firmware version: 17.168.5.3 build 42301 iwlwifi 0000:03:00.0: 0x00000000 | OK iwlwifi 0000:03:00.0: 0x00000000 | uPc iwlwifi 0000:03:00.0: 0x00000000 | branchlink1 iwlwifi 0000:03:00.0: 0x00000000 | branchlink2 iwlwifi 0000:03:00.0: 0x00000000 | interruptlink1 iwlwifi 0000:03:00.0: 0x00000000 | interruptlink2 iwlwifi 0000:03:00.0: 0x00000000 | data1 iwlwifi 0000:03:00.0: 0x00000000 | data2 iwlwifi 0000:03:00.0: 0x00000000 | line iwlwifi 0000:03:00.0: 0x00000000 | beacon time iwlwifi 0000:03:00.0: 0x00000000 | tsf low iwlwifi 0000:03:00.0: 0x00000000 | tsf hi iwlwifi 0000:03:00.0: 0x00000000 | time gp1 iwlwifi 0000:03:00.0: 0x00000000 | time gp2 iwlwifi 0000:03:00.0: 0x00000000 | time gp3 iwlwifi 0000:03:00.0: 0x00000000 | uCode version iwlwifi 0000:03:00.0: 0x00000000 | hw version iwlwifi 0000:03:00.0: 0x00000000 | board version iwlwifi 0000:03:00.0: 0x00000000 | hcmd iwlwifi 0000:03:00.0: 0x00000000 | isr0 iwlwifi 0000:03:00.0: 0x00000000 | isr1 iwlwifi 0000:03:00.0: 0x00000000 | isr2 iwlwifi 0000:03:00.0: 0x00000000 | isr3 iwlwifi 0000:03:00.0: 0x00000000 | isr4 iwlwifi 0000:03:00.0: 0x00000000 | isr_pref iwlwifi 0000:03:00.0: 0x00000000 | wait_event iwlwifi 0000:03:00.0: 0x00000000 | l2p_control iwlwifi 0000:03:00.0: 0x00000000 | l2p_duration iwlwifi 0000:03:00.0: 0x00000000 | l2p_mhvalid iwlwifi 0000:03:00.0: 0x00000000 | l2p_addr_match iwlwifi 0000:03:00.0: 0x00000000 | lmpm_pmg_sel iwlwifi 0000:03:00.0: 0x00000000 | timestamp iwlwifi 0000:03:00.0: 0x00000000 | flow_handler iwlwifi 0000:03:00.0: Start IWL Event Log Dump: display last 20 entries iwlwifi 0000:03:00.0: EVT_LOGT:0665102403:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665102492:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665102579:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665102666:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665102753:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665102840:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665102932:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665103021:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665103108:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665103195:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665103282:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665103372:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665103716:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665103882:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665104048:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665104222:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665104404:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665104587:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665105004:0x00000000:0301 iwlwifi 0000:03:00.0: EVT_LOGT:0665105176:0x00000000:0301 ieee80211 phy0: Hardware restart was requested iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
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