557332 – <=sys-kernel/gentoo-sources-4.1.5: TX queue stalls causing Intel 7620AC wifi drops with =sys-firmware/iwl7260-ucode-0.12.16.25

Bug 557332 - <=sys-kernel/gentoo-sources-4.1.5: TX queue stalls causing Intel 7620AC wifi drops with =sys-firmware/iwl7260-ucode-0.12.16.25

Summary: <=sys-kernel/gentoo-sources-4.1.5: TX queue stalls causing Intel 7620AC wifi ...

Status:	RESOLVED NEEDINFO

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	[OLD] Core system (show other bugs)
Hardware:	AMD64 Linux

Importance:	Normal major (vote)
Assignee:	Gentoo Kernel Bug Wranglers and Kernel Maintainers

URL:
Whiteboard:
Keywords:

Depends on:
Blocks:

Reported:	2015-08-12 00:00 UTC by Elizabeth Myers
Modified:	2017-02-15 13:33 UTC (History)
CC List:	1 user (show)

See Also:
Package list:
Runtime testing required:	---

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Description Elizabeth Myers 2015-08-12 00:00:45 UTC

With <=sys-kernel/gentoo-sources-4.1.5 and Intel 7620AC I am getting TX queue stalls causing wifi to drop (dmesg attached). My kernel version is 4.1.3 and my iwl7260-ucode is 0.12.16.25. I haven't had any upgrades to iwl7260-ucode in a long while, so I don't think that's the cause. It seems to be happening with the 4.1.x series. I haven't tested to see if it happens in 4.0.x.

Reproducible: Sometimes

Steps to Reproduce:
Unknown.
Actual Results:  
Wifi has occasional drops under ill-defined circumstances due to TX queue stalls.

Expected Results:  
Wifi does not drop.

dmesg:

[65137.231813] iwlwifi 0000:03:00.0: Queue 2 stuck for 10000 ms.
[65137.231831] iwlwifi 0000:03:00.0: Current SW read_ptr 200 write_ptr 100
[65137.231901] iwlwifi 0000:03:00.0: FH TRBs(0) = 0x800030bb
[65137.231927] iwlwifi 0000:03:00.0: FH TRBs(1) = 0x801020d7
[65137.231953] iwlwifi 0000:03:00.0: FH TRBs(2) = 0x8020104d
[65137.231980] iwlwifi 0000:03:00.0: FH TRBs(3) = 0x80300027
[65137.232006] iwlwifi 0000:03:00.0: FH TRBs(4) = 0x00000000
[65137.232032] iwlwifi 0000:03:00.0: FH TRBs(5) = 0x00000000
[65137.232059] iwlwifi 0000:03:00.0: FH TRBs(6) = 0x00000000
[65137.232085] iwlwifi 0000:03:00.0: FH TRBs(7) = 0x00709028
[65137.232157] iwlwifi 0000:03:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [40,40]
[65137.232226] iwlwifi 0000:03:00.0: Q 1 is active and mapped to fifo 2 ra_tid 0x0000 [78,78]
[65137.232296] iwlwifi 0000:03:00.0: Q 2 is active and mapped to fifo 1 ra_tid 0x0000 [200,100]
[65137.232366] iwlwifi 0000:03:00.0: Q 3 is active and mapped to fifo 0 ra_tid 0x0000 [188,188]
[65137.232437] iwlwifi 0000:03:00.0: Q 4 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.232507] iwlwifi 0000:03:00.0: Q 5 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.232577] iwlwifi 0000:03:00.0: Q 6 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.232647] iwlwifi 0000:03:00.0: Q 7 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.232718] iwlwifi 0000:03:00.0: Q 8 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.232788] iwlwifi 0000:03:00.0: Q 9 is active and mapped to fifo 7 ra_tid 0x0000 [41,41]
[65137.232858] iwlwifi 0000:03:00.0: Q 10 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.232928] iwlwifi 0000:03:00.0: Q 11 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.232998] iwlwifi 0000:03:00.0: Q 12 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.233069] iwlwifi 0000:03:00.0: Q 13 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.233139] iwlwifi 0000:03:00.0: Q 14 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.233209] iwlwifi 0000:03:00.0: Q 15 is active and mapped to fifo 5 ra_tid 0x0000 [0,0]
[65137.233279] iwlwifi 0000:03:00.0: Q 16 is inactive and mapped to fifo 1 ra_tid 0x0000 [217,217]
[65137.233349] iwlwifi 0000:03:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0001 [184,184]
[65137.233419] iwlwifi 0000:03:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.233489] iwlwifi 0000:03:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[65137.233563] iwlwifi 0000:03:00.0: Microcode SW error detected.  Restarting 0x2000000.
[65137.233566] iwlwifi 0000:03:00.0: CSR values:
[65137.233569] iwlwifi 0000:03:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
[65137.233579] iwlwifi 0000:03:00.0:        CSR_HW_IF_CONFIG_REG: 0X40489204
[65137.233594] iwlwifi 0000:03:00.0:          CSR_INT_COALESCING: 0X80000040
[65137.233608] iwlwifi 0000:03:00.0:                     CSR_INT: 0X00000000
[65137.233622] iwlwifi 0000:03:00.0:                CSR_INT_MASK: 0X00000000
[65137.233637] iwlwifi 0000:03:00.0:           CSR_FH_INT_STATUS: 0X00000000
[65137.233650] iwlwifi 0000:03:00.0:                 CSR_GPIO_IN: 0X00000000
[65137.233664] iwlwifi 0000:03:00.0:                   CSR_RESET: 0X00000000
[65137.233678] iwlwifi 0000:03:00.0:                CSR_GP_CNTRL: 0X080403c5
[65137.233692] iwlwifi 0000:03:00.0:                  CSR_HW_REV: 0X00000144
[65137.233706] iwlwifi 0000:03:00.0:              CSR_EEPROM_REG: 0X00000000
[65137.233720] iwlwifi 0000:03:00.0:               CSR_EEPROM_GP: 0X80000000
[65137.233734] iwlwifi 0000:03:00.0:              CSR_OTP_GP_REG: 0X803a0000
[65137.233776] iwlwifi 0000:03:00.0:                 CSR_GIO_REG: 0X00080042
[65137.233797] iwlwifi 0000:03:00.0:            CSR_GP_UCODE_REG: 0X00000000
[65137.233812] iwlwifi 0000:03:00.0:           CSR_GP_DRIVER_REG: 0X00000000
[65137.233826] iwlwifi 0000:03:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
[65137.233840] iwlwifi 0000:03:00.0:           CSR_UCODE_DRV_GP2: 0X00000000
[65137.233854] iwlwifi 0000:03:00.0:                 CSR_LED_REG: 0X00000060
[65137.233868] iwlwifi 0000:03:00.0:        CSR_DRAM_INT_TBL_REG: 0X880fffff
[65137.233881] iwlwifi 0000:03:00.0:        CSR_GIO_CHICKEN_BITS: 0X27800200
[65137.233896] iwlwifi 0000:03:00.0:             CSR_ANA_PLL_CFG: 0Xd55555d5
[65137.233910] iwlwifi 0000:03:00.0:      CSR_MONITOR_STATUS_REG: 0X3c08019d
[65137.233923] iwlwifi 0000:03:00.0:           CSR_HW_REV_WA_REG: 0X0001001a
[65137.233937] iwlwifi 0000:03:00.0:        CSR_DBG_HPET_MEM_REG: 0Xffff0010
[65137.233940] iwlwifi 0000:03:00.0: FH register values:
[65137.233970] iwlwifi 0000:03:00.0:         FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X0ffffd00
[65137.233992] iwlwifi 0000:03:00.0:        FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X00ffffe0
[65137.234007] iwlwifi 0000:03:00.0:                  FH_RSCSR_CHNL0_WPTR: 0X00000048
[65137.234023] iwlwifi 0000:03:00.0:         FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X00801114
[65137.234038] iwlwifi 0000:03:00.0:          FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
[65137.234054] iwlwifi 0000:03:00.0:            FH_MEM_RSSR_RX_STATUS_REG: 0X03030000
[65137.234069] iwlwifi 0000:03:00.0:    FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[65137.234085] iwlwifi 0000:03:00.0:                FH_TSSR_TX_STATUS_REG: 0X07ff0001
[65137.234100] iwlwifi 0000:03:00.0:                 FH_TSSR_TX_ERROR_REG: 0X00000000
[65137.234239] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
[65137.234242] iwlwifi 0000:03:00.0: Status: 0x00000000, count: 6
[65137.234244] iwlwifi 0000:03:00.0: Loaded firmware version: 25.16.12.0
[65137.234247] iwlwifi 0000:03:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN       
[65137.234250] iwlwifi 0000:03:00.0: 0x00000230 | uPc
[65137.234252] iwlwifi 0000:03:00.0: 0x00000000 | branchlink1
[65137.234254] iwlwifi 0000:03:00.0: 0x00000B34 | branchlink2
[65137.234256] iwlwifi 0000:03:00.0: 0x00016594 | interruptlink1
[65137.234258] iwlwifi 0000:03:00.0: 0x00016594 | interruptlink2
[65137.234260] iwlwifi 0000:03:00.0: 0x00000000 | data1
[65137.234263] iwlwifi 0000:03:00.0: 0x00000080 | data2
[65137.234265] iwlwifi 0000:03:00.0: 0x07030000 | data3
[65137.234267] iwlwifi 0000:03:00.0: 0x8341266C | beacon time
[65137.234269] iwlwifi 0000:03:00.0: 0x4B9A2F6C | tsf low
[65137.234271] iwlwifi 0000:03:00.0: 0x0000000F | tsf hi
[65137.234273] iwlwifi 0000:03:00.0: 0x00000000 | time gp1
[65137.234275] iwlwifi 0000:03:00.0: 0x2B6EE94B | time gp2
[65137.234278] iwlwifi 0000:03:00.0: 0x00000000 | time gp3
[65137.234280] iwlwifi 0000:03:00.0: 0x00041910 | uCode version
[65137.234282] iwlwifi 0000:03:00.0: 0x00000144 | hw version
[65137.234284] iwlwifi 0000:03:00.0: 0x40489204 | board version
[65137.234286] iwlwifi 0000:03:00.0: 0x0000001C | hcmd
[65137.234288] iwlwifi 0000:03:00.0: 0x24022002 | isr0
[65137.234290] iwlwifi 0000:03:00.0: 0x01800000 | isr1
[65137.234292] iwlwifi 0000:03:00.0: 0x0000000A | isr2
[65137.234294] iwlwifi 0000:03:00.0: 0x004140C0 | isr3
[65137.234296] iwlwifi 0000:03:00.0: 0x00000000 | isr4
[65137.234299] iwlwifi 0000:03:00.0: 0x00000110 | isr_pref
[65137.234301] iwlwifi 0000:03:00.0: 0x00000000 | wait_event
[65137.234303] iwlwifi 0000:03:00.0: 0x00000080 | l2p_control
[65137.234305] iwlwifi 0000:03:00.0: 0x00010030 | l2p_duration
[65137.234307] iwlwifi 0000:03:00.0: 0x0000003F | l2p_mhvalid
[65137.234309] iwlwifi 0000:03:00.0: 0x000000CE | l2p_addr_match
[65137.234312] iwlwifi 0000:03:00.0: 0x00000005 | lmpm_pmg_sel
[65137.234314] iwlwifi 0000:03:00.0: 0x18031218 | timestamp
[65137.234316] iwlwifi 0000:03:00.0: 0x00344858 | flow_handler
[65137.405123] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
[65137.405383] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
[65137.618444] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
[65137.618709] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
[68429.449692] iwlwifi 0000:03:00.0: Queue 16 stuck for 10000 ms.
[68429.449695] iwlwifi 0000:03:00.0: Current SW read_ptr 96 write_ptr 28
[68429.449748] iwlwifi 0000:03:00.0: FH TRBs(0) = 0x800030c1
[68429.449761] iwlwifi 0000:03:00.0: FH TRBs(1) = 0xc011006f
[68429.449774] iwlwifi 0000:03:00.0: FH TRBs(2) = 0x00000000
[68429.449788] iwlwifi 0000:03:00.0: FH TRBs(3) = 0x80300018
[68429.449801] iwlwifi 0000:03:00.0: FH TRBs(4) = 0x00000000
[68429.449814] iwlwifi 0000:03:00.0: FH TRBs(5) = 0x00000000
[68429.449828] iwlwifi 0000:03:00.0: FH TRBs(6) = 0x00000000
[68429.449841] iwlwifi 0000:03:00.0: FH TRBs(7) = 0x00709039
[68429.449898] iwlwifi 0000:03:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [25,25]
[68429.449954] iwlwifi 0000:03:00.0: Q 1 is active and mapped to fifo 2 ra_tid 0x0000 [0,0]
[68429.450010] iwlwifi 0000:03:00.0: Q 2 is active and mapped to fifo 1 ra_tid 0x0000 [198,198]
[68429.450066] iwlwifi 0000:03:00.0: Q 3 is active and mapped to fifo 0 ra_tid 0x0000 [194,194]
[68429.450122] iwlwifi 0000:03:00.0: Q 4 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450178] iwlwifi 0000:03:00.0: Q 5 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450234] iwlwifi 0000:03:00.0: Q 6 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450290] iwlwifi 0000:03:00.0: Q 7 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450346] iwlwifi 0000:03:00.0: Q 8 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450402] iwlwifi 0000:03:00.0: Q 9 is active and mapped to fifo 7 ra_tid 0x0000 [58,58]
[68429.450458] iwlwifi 0000:03:00.0: Q 10 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450514] iwlwifi 0000:03:00.0: Q 11 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450569] iwlwifi 0000:03:00.0: Q 12 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450626] iwlwifi 0000:03:00.0: Q 13 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450695] iwlwifi 0000:03:00.0: Q 14 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450751] iwlwifi 0000:03:00.0: Q 15 is active and mapped to fifo 5 ra_tid 0x0000 [0,0]
[68429.450807] iwlwifi 0000:03:00.0: Q 16 is active and mapped to fifo 1 ra_tid 0x0000 [96,28]
[68429.450863] iwlwifi 0000:03:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450919] iwlwifi 0000:03:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.450975] iwlwifi 0000:03:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[68429.451023] iwlwifi 0000:03:00.0: Microcode SW error detected.  Restarting 0x2000000.
[68429.451025] iwlwifi 0000:03:00.0: CSR values:
[68429.451026] iwlwifi 0000:03:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
[68429.451031] iwlwifi 0000:03:00.0:        CSR_HW_IF_CONFIG_REG: 0X40489204
[68429.451045] iwlwifi 0000:03:00.0:          CSR_INT_COALESCING: 0X80000040
[68429.451055] iwlwifi 0000:03:00.0:                     CSR_INT: 0X00000000
[68429.451069] iwlwifi 0000:03:00.0:                CSR_INT_MASK: 0X00000000
[68429.451080] iwlwifi 0000:03:00.0:           CSR_FH_INT_STATUS: 0X00000000
[68429.451092] iwlwifi 0000:03:00.0:                 CSR_GPIO_IN: 0X00000000
[68429.451105] iwlwifi 0000:03:00.0:                   CSR_RESET: 0X00000000
[68429.451116] iwlwifi 0000:03:00.0:                CSR_GP_CNTRL: 0X080403c5
[68429.451129] iwlwifi 0000:03:00.0:                  CSR_HW_REV: 0X00000144
[68429.451140] iwlwifi 0000:03:00.0:              CSR_EEPROM_REG: 0X00000000
[68429.451151] iwlwifi 0000:03:00.0:               CSR_EEPROM_GP: 0X80000000
[68429.451162] iwlwifi 0000:03:00.0:              CSR_OTP_GP_REG: 0X803a0000
[68429.451172] iwlwifi 0000:03:00.0:                 CSR_GIO_REG: 0X00080042
[68429.451183] iwlwifi 0000:03:00.0:            CSR_GP_UCODE_REG: 0X00000000
[68429.451195] iwlwifi 0000:03:00.0:           CSR_GP_DRIVER_REG: 0X00000000
[68429.451208] iwlwifi 0000:03:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
[68429.451219] iwlwifi 0000:03:00.0:           CSR_UCODE_DRV_GP2: 0X00000000
[68429.451230] iwlwifi 0000:03:00.0:                 CSR_LED_REG: 0X00000060
[68429.451242] iwlwifi 0000:03:00.0:        CSR_DRAM_INT_TBL_REG: 0X880fffff
[68429.451255] iwlwifi 0000:03:00.0:        CSR_GIO_CHICKEN_BITS: 0X27800200
[68429.451266] iwlwifi 0000:03:00.0:             CSR_ANA_PLL_CFG: 0Xd55555d5
[68429.451276] iwlwifi 0000:03:00.0:      CSR_MONITOR_STATUS_REG: 0X3c08019d
[68429.451287] iwlwifi 0000:03:00.0:           CSR_HW_REV_WA_REG: 0X0001001a
[68429.451298] iwlwifi 0000:03:00.0:        CSR_DBG_HPET_MEM_REG: 0Xffff0010
[68429.451299] iwlwifi 0000:03:00.0: FH register values:
[68429.451321] iwlwifi 0000:03:00.0:         FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X0ffffd00
[68429.451334] iwlwifi 0000:03:00.0:        FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X00ffffe0
[68429.451348] iwlwifi 0000:03:00.0:                  FH_RSCSR_CHNL0_WPTR: 0X000000d8
[68429.451361] iwlwifi 0000:03:00.0:         FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X00801114
[68429.451375] iwlwifi 0000:03:00.0:          FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
[68429.451388] iwlwifi 0000:03:00.0:            FH_MEM_RSSR_RX_STATUS_REG: 0X03030000
[68429.451402] iwlwifi 0000:03:00.0:    FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[68429.451415] iwlwifi 0000:03:00.0:                FH_TSSR_TX_STATUS_REG: 0X07ff0001
[68429.451429] iwlwifi 0000:03:00.0:                 FH_TSSR_TX_ERROR_REG: 0X00000000
[68429.451553] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
[68429.451554] iwlwifi 0000:03:00.0: Status: 0x00000000, count: 6
[68429.451555] iwlwifi 0000:03:00.0: Loaded firmware version: 25.16.12.0
[68429.451556] iwlwifi 0000:03:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN       
[68429.451557] iwlwifi 0000:03:00.0: 0x00A002B0 | uPc
[68429.451558] iwlwifi 0000:03:00.0: 0x00000000 | branchlink1
[68429.451559] iwlwifi 0000:03:00.0: 0x00000B34 | branchlink2
[68429.451559] iwlwifi 0000:03:00.0: 0x00016594 | interruptlink1
[68429.451560] iwlwifi 0000:03:00.0: 0x00016594 | interruptlink2
[68429.451561] iwlwifi 0000:03:00.0: 0x00000000 | data1
[68429.451562] iwlwifi 0000:03:00.0: 0x00000080 | data2
[68429.451562] iwlwifi 0000:03:00.0: 0x07030000 | data3
[68429.451563] iwlwifi 0000:03:00.0: 0xE14084A3 | beacon time
[68429.451564] iwlwifi 0000:03:00.0: 0x0FE65B6D | tsf low
[68429.451565] iwlwifi 0000:03:00.0: 0x00000010 | tsf hi
[68429.451566] iwlwifi 0000:03:00.0: 0x00000000 | time gp1
[68429.451567] iwlwifi 0000:03:00.0: 0xC4454A7E | time gp2
[68429.451567] iwlwifi 0000:03:00.0: 0x00000000 | time gp3
[68429.451568] iwlwifi 0000:03:00.0: 0x00041910 | uCode version
[68429.451569] iwlwifi 0000:03:00.0: 0x00000144 | hw version
[68429.451570] iwlwifi 0000:03:00.0: 0x40489204 | board version
[68429.451570] iwlwifi 0000:03:00.0: 0x0000001C | hcmd
[68429.451571] iwlwifi 0000:03:00.0: 0x00022002 | isr0
[68429.451572] iwlwifi 0000:03:00.0: 0x00000000 | isr1
[68429.451573] iwlwifi 0000:03:00.0: 0x0000000A | isr2
[68429.451574] iwlwifi 0000:03:00.0: 0x004140C0 | isr3
[68429.451574] iwlwifi 0000:03:00.0: 0x00000000 | isr4
[68429.451575] iwlwifi 0000:03:00.0: 0x00000110 | isr_pref
[68429.451576] iwlwifi 0000:03:00.0: 0x00000000 | wait_event
[68429.451577] iwlwifi 0000:03:00.0: 0x00000080 | l2p_control
[68429.451577] iwlwifi 0000:03:00.0: 0x00010020 | l2p_duration
[68429.451578] iwlwifi 0000:03:00.0: 0x0000003F | l2p_mhvalid
[68429.451579] iwlwifi 0000:03:00.0: 0x000000CE | l2p_addr_match
[68429.451580] iwlwifi 0000:03:00.0: 0x00000005 | lmpm_pmg_sel
[68429.451581] iwlwifi 0000:03:00.0: 0x18031218 | timestamp
[68429.451581] iwlwifi 0000:03:00.0: 0x0034D8E8 | flow_handler
[68429.621574] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
[68429.621931] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
[68429.842958] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
[68429.843225] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled

Comment 1 Russell Knighton 2015-09-22 17:45:33 UTC

I've been experiencing similar problems, both with the 4.1.* & 4.2+ kernels.

I have, however, just found this page at Intel: http://www.intel.com/support/wireless/wlan/sb/CS-034398.htm

It shows that for the 4.1 kernels, we should have been on firmware 13.30.25, and for the 4.2 series, we should be on 14.30.25.

Can we please convert this to a version bump request for "=sys-firmware/iwl7620-ucode-0.14.30.25"?

I'm not saying it's definitely going to solve the issue, but it's a pretty good bet for where to start looking.

Comment 2 m.manico 2015-09-23 09:14:58 UTC

I experience similar problems.

kernel: 4.0.5
firmware: sys-kernel/linux-firmware-20150206 [1]

Renaming the file mentioned in [1] makes the system use version 10 [2] instead, which works without problem.

--------------------------------------------------------------------------------

[1] Provides file /lib/firmware/iwlwifi-7260-12.ucode which in turn
contains firmware version 0.12.15.25 (according to dmesg)

[2] precisely: version 0.10.11.23 from /lib/firmware/iwlwifi-7260-10.ucode

Comment 3 Alice Ferrazzi Gentoo Infrastructure

2017-02-14 18:34:52 UTC

could you test it with 4.1.38 ?

Comment 4 m.manico 2017-02-14 19:56:53 UTC

No more hangs with my current configuration:
kernel: 4.9.6-gentoo-r1
firmware: 17.352738.0 [1]

Given that this issue is 1.5 years old and no one else complained about I don't think a test for 4.1.38 is worth it.

[1] dmesg | grep iwl
[    4.167546] iwlwifi 0000:04:00.0: loaded firmware version 17.352738.0 op_mode iwlmvm
[    4.170329] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 7260, REV=0x144
[    4.171742] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[    4.171984] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[    4.375949] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[    4.638110] iwlwifi 0000:04:00.0 wlp4s0: renamed from wlan0
[    8.943037] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[    8.943279] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[    9.142465] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[    9.142705] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[    9.166051] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[    9.166295] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[    9.379048] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[    9.379291] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[   34.004268] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[   34.004509] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[   34.208753] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[   34.208999] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[62014.743364] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[62014.743614] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
...

Comment 5 Alice Ferrazzi Gentoo Infrastructure

2017-02-15 13:33:06 UTC

we have no information about 4.1.38