Dual Band Wireless-AC 7260 iwlwifi Queue 2 stuck for 10000 ms. Microcode SW error detected. Restarting 0x2000000.

[idata]

Intel Dual Band Wireless-AC 7260 adapter hungs with 40MHz width connection

lspci -vvv:

01:00.0 Network controller: Intel Corporation Wireless 7260 (rev bb)

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- SERR-

Latency: 0, Cache Line Size: 64 bytes

Interrupt: pin A routed to IRQ 39

Region 0: Memory at fe900000 (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: 00000000fee0f00c Data: 4164

Capabilities: [40] Express (v2) Endpoint, MSI 00

DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 unlimited

ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W

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 # 1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <32us

ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp-

LnkCtl: ASPM L0s L1 Enabled; 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 7c-5c-f8-ff-ff-5a-96-73

Capabilities: [14c v1] Latency Tolerance Reporting

Max snoop latency: 0ns

Max no snoop latency: 0ns

Capabilities: [154 v1] Vendor Specific Information: ID=cafe Rev=1 Len=014 <?>

Kernel driver in use: iwlwifi

Kernel modules: iwlwifi

dmesg:

[19878.616498] iwlwifi 0000:01:00.0: Queue 2 stuck for 10000 ms.

[19878.616533] iwlwifi 0000:01:00.0: Current SW read_ptr 59 write_ptr 68

[19878.616598] iwl data: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

[19878.616649] iwlwifi 0000:01:00.0: FH TRBs(0) = 0x00000000

[19878.616704] iwlwifi 0000:01:00.0: FH TRBs(1) = 0x80102043

[19878.616757] iwlwifi 0000:01:00.0: FH TRBs(2) = 0x00000000

[19878.616811] iwlwifi 0000:01:00.0: FH TRBs(3) = 0x80300001

[19878.616866] iwlwifi 0000:01:00.0: FH TRBs(4) = 0x00000000

[19878.616920] iwlwifi 0000:01:00.0: FH TRBs(5) = 0x80504000

[19878.616974] iwlwifi 0000:01:00.0: FH TRBs(6) = 0x00000000

[19878.617029] iwlwifi 0000:01:00.0: FH TRBs(7) = 0x00709037

[19878.617123] iwlwifi 0000:01:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [2,2]

[19878.617216] iwlwifi 0000:01:00.0: Q 1 is active and mapped to fifo 2 ra_tid 0x0000 [0,0]

[19878.617308] iwlwifi 0000:01:00.0: Q 2 is active and mapped to fifo 1 ra_tid 0x0000 [59,68]

[19878.617401] iwlwifi 0000:01:00.0: Q 3 is active and mapped to fifo 0 ra_tid 0x0000 [0,0]

[19878.617493] iwlwifi 0000:01:00.0: Q 4 is active and mapped to fifo 5 ra_tid 0x0000 [1,1]

[19878.617586] iwlwifi 0000:01:00.0: Q 5 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]

[19878.617679] iwlwifi 0000:01:00.0: Q 6 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]

[19878.617771] iwlwifi 0000:01:00.0: Q 7 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] ...

[idata]

Hello alexminder,

We understand you are experiencing issues with your Intel® Dual Band Wireless-AC 7260.In order to better assist you, we would like to have some more information. Please keep in mind that for Linux/Unix* operating systems, your main source of support will be your distributions online forums.1. What Operating System are you using?2. What is the brand and model of your wireless router?3. Did this adapter come preinstalled in your computer, or was it an upgrade part?4. What is the brand and model of your computer (or motherboard, if it's a custom build)?5. Do this hang issues only occur with one particular network, or any?We look forward to hearing back from you.Best regards,Carlos A.

[idata]

Hello alexminder,

We haven't received any reply to our message. Feel free to contact us if you require further assistance.Regards,Jonathan B.

[idata]

Hello,

I had recieve the answer here https://bugzilla.kernel.org/show_bug.cgi?id=194853 194853 – iwlwifi: 7260: TFD queue hang on 40MHz - ext CCA

Thank you for reply.

[idata]

Hello alexminder,

We appreciate the update and we are glad that you figured it out with the assistance from the Linux community. This will be very useful for other users as well.Regards,Jonathan B.