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Message #131908
[Bug 1487214] Re: Intel AC 7260 unstable WiFi: Microcode SW error detected
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.2 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".
Thanks in advance.
[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-rc8-unstable/
** Package changed: linux-firmware (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1487214
Title:
Intel AC 7260 unstable WiFi: Microcode SW error detected
Status in linux package in Ubuntu:
Incomplete
Bug description:
The WiFi connectivity with the Intel AC 7260 is very unstable.
When the connectivity is lost, the only solution appear to be to restart the network-manager via:
sudo service network-manager restart
Below you can find additional information.
Ubuntu 15.04
linux-firmware: 1.143.3
dmesg | grep iwl:
[ 2.600428] iwlwifi 0000:06:00.0: loaded firmware version 25.17.12.0 op_mode iwlmvm
[ 2.645054] iwlwifi 0000:06:00.0: Detected Intel(R) Dual Band Wireless AC 7260, REV=0x144
kern.log:
[ 4324.645405] ieee80211 phy0: Hardware restart was requested
[ 4324.761175] iwlwifi 0000:06:00.0: L1 Disabled - LTR Disabled
[ 4324.761329] iwlwifi 0000:06:00.0: L1 Disabled - LTR Disabled
[ 4478.866610] iwlwifi 0000:06:00.0: Microcode SW error detected. Restarting 0x2000000.
[ 4478.866614] iwlwifi 0000:06:00.0: CSR values:
[ 4478.866616] iwlwifi 0000:06:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
[ 4478.866620] iwlwifi 0000:06:00.0: CSR_HW_IF_CONFIG_REG: 0X40489204
[ 4478.866623] iwlwifi 0000:06:00.0: CSR_INT_COALESCING: 0X8000ff40
[ 4478.866627] iwlwifi 0000:06:00.0: CSR_INT: 0X00000000
[ 4478.866631] iwlwifi 0000:06:00.0: CSR_INT_MASK: 0X00000000
[ 4478.866634] iwlwifi 0000:06:00.0: CSR_FH_INT_STATUS: 0X00000000
[ 4478.866638] iwlwifi 0000:06:00.0: CSR_GPIO_IN: 0X00000000
[ 4478.866641] iwlwifi 0000:06:00.0: CSR_RESET: 0X00000000
[ 4478.866645] iwlwifi 0000:06:00.0: CSR_GP_CNTRL: 0X080403cd
[ 4478.866649] iwlwifi 0000:06:00.0: CSR_HW_REV: 0X00000144
[ 4478.866652] iwlwifi 0000:06:00.0: CSR_EEPROM_REG: 0X00000000
[ 4478.866656] iwlwifi 0000:06:00.0: CSR_EEPROM_GP: 0X80000000
[ 4478.866659] iwlwifi 0000:06:00.0: CSR_OTP_GP_REG: 0X803a0000
[ 4478.866663] iwlwifi 0000:06:00.0: CSR_GIO_REG: 0X00080044
[ 4478.866667] iwlwifi 0000:06:00.0: CSR_GP_UCODE_REG: 0X00000000
[ 4478.866670] iwlwifi 0000:06:00.0: CSR_GP_DRIVER_REG: 0X00000000
[ 4478.866674] iwlwifi 0000:06:00.0: CSR_UCODE_DRV_GP1: 0X00000000
[ 4478.866677] iwlwifi 0000:06:00.0: CSR_UCODE_DRV_GP2: 0X00000000
[ 4478.866681] iwlwifi 0000:06:00.0: CSR_LED_REG: 0X00000060
[ 4478.866685] iwlwifi 0000:06:00.0: CSR_DRAM_INT_TBL_REG: 0X8841b127
[ 4478.866688] iwlwifi 0000:06:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
[ 4478.866692] iwlwifi 0000:06:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
[ 4478.866695] iwlwifi 0000:06:00.0: CSR_MONITOR_STATUS_REG: 0X3d0801bd
[ 4478.866699] iwlwifi 0000:06:00.0: CSR_HW_REV_WA_REG: 0X0001001a
[ 4478.866702] iwlwifi 0000:06:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
[ 4478.866704] iwlwifi 0000:06:00.0: FH register values:
[ 4478.866708] iwlwifi 0000:06:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X41d25b00
[ 4478.866712] iwlwifi 0000:06:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X0419ebf0
[ 4478.866716] iwlwifi 0000:06:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000088
[ 4478.866720] iwlwifi 0000:06:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
[ 4478.866723] iwlwifi 0000:06:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
[ 4478.866727] iwlwifi 0000:06:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
[ 4478.866731] iwlwifi 0000:06:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[ 4478.866735] iwlwifi 0000:06:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
[ 4478.866739] iwlwifi 0000:06:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
[ 4478.866837] iwlwifi 0000:06:00.0: Start IWL Error Log Dump:
[ 4478.866839] iwlwifi 0000:06:00.0: Status: 0x00000000, count: 6
[ 4478.866840] iwlwifi 0000:06:00.0: Loaded firmware version: 25.17.12.0
[ 4478.866842] iwlwifi 0000:06:00.0: 0x00002078 | ADVANCED_SYSASSERT
[ 4478.866843] iwlwifi 0000:06:00.0: 0x00000222 | uPc
[ 4478.866844] iwlwifi 0000:06:00.0: 0x00000000 | branchlink1
[ 4478.866846] iwlwifi 0000:06:00.0: 0x00000B34 | branchlink2
[ 4478.866847] iwlwifi 0000:06:00.0: 0x000165BC | interruptlink1
[ 4478.866848] iwlwifi 0000:06:00.0: 0x00525153 | interruptlink2
[ 4478.866849] iwlwifi 0000:06:00.0: 0x00000000 | data1
[ 4478.866851] iwlwifi 0000:06:00.0: 0x00008904 | data2
[ 4478.866852] iwlwifi 0000:06:00.0: 0xDEADBEEF | data3
[ 4478.866853] iwlwifi 0000:06:00.0: 0x92803CB6 | beacon time
[ 4478.866854] iwlwifi 0000:06:00.0: 0x40E9D34D | tsf low
[ 4478.866855] iwlwifi 0000:06:00.0: 0x00000070 | tsf hi
[ 4478.866857] iwlwifi 0000:06:00.0: 0x00000000 | time gp1
[ 4478.866858] iwlwifi 0000:06:00.0: 0x092D7A70 | time gp2
[ 4478.866859] iwlwifi 0000:06:00.0: 0x00000000 | time gp3
[ 4478.866860] iwlwifi 0000:06:00.0: 0x00041911 | uCode version
[ 4478.866861] iwlwifi 0000:06:00.0: 0x00000144 | hw version
[ 4478.866863] iwlwifi 0000:06:00.0: 0x40489204 | board version
[ 4478.866864] iwlwifi 0000:06:00.0: 0x0965004E | hcmd
[ 4478.866865] iwlwifi 0000:06:00.0: 0x26222082 | isr0
[ 4478.866866] iwlwifi 0000:06:00.0: 0x00000000 | isr1
[ 4478.866867] iwlwifi 0000:06:00.0: 0x00000002 | isr2
[ 4478.866868] iwlwifi 0000:06:00.0: 0x00400080 | isr3
[ 4478.866870] iwlwifi 0000:06:00.0: 0x00000000 | isr4
[ 4478.866871] iwlwifi 0000:06:00.0: 0x11000112 | isr_pref
[ 4478.866872] iwlwifi 0000:06:00.0: 0x00000000 | wait_event
[ 4478.866873] iwlwifi 0000:06:00.0: 0x00004188 | l2p_control
[ 4478.866874] iwlwifi 0000:06:00.0: 0x00019430 | l2p_duration
[ 4478.866876] iwlwifi 0000:06:00.0: 0x000003BF | l2p_mhvalid
[ 4478.866877] iwlwifi 0000:06:00.0: 0x00000014 | l2p_addr_match
[ 4478.866878] iwlwifi 0000:06:00.0: 0x00000005 | lmpm_pmg_sel
[ 4478.866879] iwlwifi 0000:06:00.0: 0x13041303 | timestamp
[ 4478.866880] iwlwifi 0000:06:00.0: 0x00008898 | flow_handler
lspci -vvvv:
06:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73)
Subsystem: Intel Corporation Dual Band Wireless-AC 7260
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 30
Region 0: Memory at f7800000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [c8] Power Management version 3
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0100c Data: 4162
Capabilities: [40] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr+ NoSnoop+ FLReset-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <32us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range B, TimeoutDis+, LTR+, OBFF Via WAKE#
DevCtl2: Completion Timeout: 16ms to 55ms, TimeoutDis-, LTR-, OBFF Disabled
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
Capabilities: [140 v1] Device Serial Number ac-7b-a1-ff-ff-24-66-d9
Capabilities: [14c v1] Latency Tolerance Reporting
Max snoop latency: 71680ns
Max no snoop latency: 71680ns
Capabilities: [154 v1] Vendor Specific Information: ID=cafe Rev=1 Len=014 <?>
Kernel driver in use: iwlwifi
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