* Centrino Advanced-N 6235 - Microcode SW error detected
@ 2018-01-30 19:49 Pali Rohár
2018-02-12 18:48 ` Luca Coelho
0 siblings, 1 reply; 4+ messages in thread
From: Pali Rohár @ 2018-01-30 19:49 UTC (permalink / raw)
To: linux-wireless, ilw
[-- Attachment #1: Type: text/plain, Size: 14642 bytes --]
Hello,
for almost 3 years I have a problem with Intel wifi card Centrino
Advanced-N 6235. Its firmware periodically crash and in dmesg I'm seeing
a message "Microcode SW error detected".
Problem happens independently of kernel versions (I tried 3.8, 3.13,
3.18, 4.0, 4.9). Currently I'm using Debian Stretch and its 4.9 version.
This wifi card is identified as:
$ lspci -s 03:00.0 -vv
03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24)
Subsystem: Intel Corporation Centrino Advanced-N 6235 AGN
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 32
Region 0: Memory at f7d00000 (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: 00000000fee003b8 Data: 0000
Capabilities: [e0] Express (v1) 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 #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <32us
ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp-
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-
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 c4-d9-87-ff-ff-6c-38-01
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
And here is example of dmesg error flood:
[26624.998823] iwlwifi 0000:03:00.0: Microcode SW error detected. Restarting 0x2000000.
[26624.998826] iwlwifi 0000:03:00.0: CSR values:
[26624.998827] iwlwifi 0000:03:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
[26624.998831] iwlwifi 0000:03:00.0: CSR_HW_IF_CONFIG_REG: 0X00484b00
[26624.998834] iwlwifi 0000:03:00.0: CSR_INT_COALESCING: 0X0000ff40
[26624.998837] iwlwifi 0000:03:00.0: CSR_INT: 0X00000000
[26624.998841] iwlwifi 0000:03:00.0: CSR_INT_MASK: 0X00000000
[26624.998844] iwlwifi 0000:03:00.0: CSR_FH_INT_STATUS: 0X00000000
[26624.998848] iwlwifi 0000:03:00.0: CSR_GPIO_IN: 0X00000038
[26624.998851] iwlwifi 0000:03:00.0: CSR_RESET: 0X00000000
[26624.998854] iwlwifi 0000:03:00.0: CSR_GP_CNTRL: 0X080403c5
[26624.998858] iwlwifi 0000:03:00.0: CSR_HW_REV: 0X000000b0
[26624.998861] iwlwifi 0000:03:00.0: CSR_EEPROM_REG: 0Xae3c0ffd
[26624.998864] iwlwifi 0000:03:00.0: CSR_EEPROM_GP: 0X90000801
[26624.998868] iwlwifi 0000:03:00.0: CSR_OTP_GP_REG: 0X00030001
[26624.998871] iwlwifi 0000:03:00.0: CSR_GIO_REG: 0X00080044
[26624.998875] iwlwifi 0000:03:00.0: CSR_GP_UCODE_REG: 0X00001416
[26624.998878] iwlwifi 0000:03:00.0: CSR_GP_DRIVER_REG: 0X00000000
[26624.998881] iwlwifi 0000:03:00.0: CSR_UCODE_DRV_GP1: 0X00000000
[26624.998885] iwlwifi 0000:03:00.0: CSR_UCODE_DRV_GP2: 0X00000000
[26624.998888] iwlwifi 0000:03:00.0: CSR_LED_REG: 0X00000040
[26624.998892] iwlwifi 0000:03:00.0: CSR_DRAM_INT_TBL_REG: 0X88222bc1
[26624.998895] iwlwifi 0000:03:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
[26624.998898] iwlwifi 0000:03:00.0: CSR_ANA_PLL_CFG: 0X00000000
[26624.998902] iwlwifi 0000:03:00.0: CSR_MONITOR_STATUS_REG: 0X6bf7ffd7
[26624.998905] iwlwifi 0000:03:00.0: CSR_HW_REV_WA_REG: 0X0001001a
[26624.998909] iwlwifi 0000:03:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000
[26624.998910] iwlwifi 0000:03:00.0: FH register values:
[26624.998921] iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X220b5d00
[26624.998932] iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X0220b040
[26624.998944] iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_WPTR: 0X000000d8
[26624.998955] iwlwifi 0000:03:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
[26624.998967] iwlwifi 0000:03:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
[26624.998978] iwlwifi 0000:03:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
[26624.998989] iwlwifi 0000:03:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[26624.999000] iwlwifi 0000:03:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
[26624.999012] iwlwifi 0000:03:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
[26624.999013] iwlwifi 0000:03:00.0: Loaded firmware version: 18.168.6.1
[26624.999117] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
[26624.999118] iwlwifi 0000:03:00.0: Status: 0x000002CC, count: 6
[26624.999120] iwlwifi 0000:03:00.0: 0x000028AA | ADVANCED_SYSASSERT
[26624.999120] iwlwifi 0000:03:00.0: 0x00015984 | uPc
[26624.999121] iwlwifi 0000:03:00.0: 0x00015974 | branchlink1
[26624.999122] iwlwifi 0000:03:00.0: 0x00015974 | branchlink2
[26624.999123] iwlwifi 0000:03:00.0: 0x0000DBEA | interruptlink1
[26624.999124] iwlwifi 0000:03:00.0: 0x00000000 | interruptlink2
[26624.999125] iwlwifi 0000:03:00.0: 0x0000093A | data1
[26624.999126] iwlwifi 0000:03:00.0: 0x00000012 | data2
[26624.999126] iwlwifi 0000:03:00.0: 0x000001F3 | line
[26624.999127] iwlwifi 0000:03:00.0: 0xC1006DA0 | beacon time
[26624.999128] iwlwifi 0000:03:00.0: 0x79AA1260 | tsf low
[26624.999129] iwlwifi 0000:03:00.0: 0x00000006 | tsf hi
[26624.999130] iwlwifi 0000:03:00.0: 0x00000000 | time gp1
[26624.999131] iwlwifi 0000:03:00.0: 0xE9B0D44A | time gp2
[26624.999131] iwlwifi 0000:03:00.0: 0x00000000 | time gp3
[26624.999132] iwlwifi 0000:03:00.0: 0x754312A8 | uCode version
[26624.999133] iwlwifi 0000:03:00.0: 0x000000B0 | hw version
[26624.999134] iwlwifi 0000:03:00.0: 0x00484B00 | board version
[26624.999135] iwlwifi 0000:03:00.0: 0x0000001C | hcmd
[26624.999136] iwlwifi 0000:03:00.0: 0xAFA63040 | isr0
[26624.999137] iwlwifi 0000:03:00.0: 0x1189F800 | isr1
[26624.999137] iwlwifi 0000:03:00.0: 0x00000E1A | isr2
[26624.999138] iwlwifi 0000:03:00.0: 0x0143FCC3 | isr3
[26624.999139] iwlwifi 0000:03:00.0: 0x00000000 | isr4
[26624.999140] iwlwifi 0000:03:00.0: 0x10000112 | isr_pref
[26624.999141] iwlwifi 0000:03:00.0: 0x000260A4 | wait_event
[26624.999141] iwlwifi 0000:03:00.0: 0x00000080 | l2p_control
[26624.999142] iwlwifi 0000:03:00.0: 0x00000000 | l2p_duration
[26624.999143] iwlwifi 0000:03:00.0: 0x0000003F | l2p_mhvalid
[26624.999144] iwlwifi 0000:03:00.0: 0x00200200 | l2p_addr_match
[26624.999145] iwlwifi 0000:03:00.0: 0x00000005 | lmpm_pmg_sel
[26624.999146] iwlwifi 0000:03:00.0: 0x13011136 | timestamp
[26624.999147] iwlwifi 0000:03:00.0: 0x0000D8E8 | flow_handler
[26624.999196] iwlwifi 0000:03:00.0: Start IWL Event Log Dump: nothing in log
[26625.004313] ieee80211 phy0: Hardware restart was requested
[26625.005920] iwlwifi 0000:03:00.0: L1 Disabled - LTR Disabled
[26625.012617] iwlwifi 0000:03:00.0: L1 Disabled - LTR Disabled
[26625.012699] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
[26625.293980] iwlwifi 0000:03:00.0: L1 Disabled - LTR Disabled
[26625.300680] iwlwifi 0000:03:00.0: L1 Disabled - LTR Disabled
[26625.300760] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
[27464.823586] iwlwifi 0000:03:00.0: Microcode SW error detected. Restarting 0x2000000.
[27464.823589] iwlwifi 0000:03:00.0: CSR values:
[27464.823590] iwlwifi 0000:03:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
[27464.823594] iwlwifi 0000:03:00.0: CSR_HW_IF_CONFIG_REG: 0X00484b00
[27464.823598] iwlwifi 0000:03:00.0: CSR_INT_COALESCING: 0X0000ff40
[27464.823601] iwlwifi 0000:03:00.0: CSR_INT: 0X00000000
[27464.823604] iwlwifi 0000:03:00.0: CSR_INT_MASK: 0X00000000
[27464.823608] iwlwifi 0000:03:00.0: CSR_FH_INT_STATUS: 0X00000000
[27464.823611] iwlwifi 0000:03:00.0: CSR_GPIO_IN: 0X00000038
[27464.823615] iwlwifi 0000:03:00.0: CSR_RESET: 0X00000000
[27464.823618] iwlwifi 0000:03:00.0: CSR_GP_CNTRL: 0X080403c5
[27464.823621] iwlwifi 0000:03:00.0: CSR_HW_REV: 0X000000b0
[27464.823625] iwlwifi 0000:03:00.0: CSR_EEPROM_REG: 0Xae3c0ffd
[27464.823628] iwlwifi 0000:03:00.0: CSR_EEPROM_GP: 0X90000801
[27464.823631] iwlwifi 0000:03:00.0: CSR_OTP_GP_REG: 0X00030001
[27464.823635] iwlwifi 0000:03:00.0: CSR_GIO_REG: 0X00080044
[27464.823638] iwlwifi 0000:03:00.0: CSR_GP_UCODE_REG: 0X0000991a
[27464.823642] iwlwifi 0000:03:00.0: CSR_GP_DRIVER_REG: 0X00000000
[27464.823645] iwlwifi 0000:03:00.0: CSR_UCODE_DRV_GP1: 0X00000000
[27464.823649] iwlwifi 0000:03:00.0: CSR_UCODE_DRV_GP2: 0X00000000
[27464.823652] iwlwifi 0000:03:00.0: CSR_LED_REG: 0X00000060
[27464.823656] iwlwifi 0000:03:00.0: CSR_DRAM_INT_TBL_REG: 0X88222bc1
[27464.823660] iwlwifi 0000:03:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
[27464.823663] iwlwifi 0000:03:00.0: CSR_ANA_PLL_CFG: 0X00000000
[27464.823667] iwlwifi 0000:03:00.0: CSR_MONITOR_STATUS_REG: 0X6bf7f757
[27464.823670] iwlwifi 0000:03:00.0: CSR_HW_REV_WA_REG: 0X0001001a
[27464.823674] iwlwifi 0000:03:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000
[27464.823675] iwlwifi 0000:03:00.0: FH register values:
[27464.823686] iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X220b5d00
[27464.823698] iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X0220b040
[27464.823709] iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000068
[27464.823720] iwlwifi 0000:03:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
[27464.823732] iwlwifi 0000:03:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
[27464.823743] iwlwifi 0000:03:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
[27464.823754] iwlwifi 0000:03:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[27464.823766] iwlwifi 0000:03:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
[27464.823777] iwlwifi 0000:03:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
[27464.823779] iwlwifi 0000:03:00.0: Loaded firmware version: 18.168.6.1
[27464.823903] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
[27464.823904] iwlwifi 0000:03:00.0: Status: 0x000002CC, count: 6
[27464.823906] iwlwifi 0000:03:00.0: 0x000028AA | ADVANCED_SYSASSERT
[27464.823906] iwlwifi 0000:03:00.0: 0x00015984 | uPc
[27464.823907] iwlwifi 0000:03:00.0: 0x00015974 | branchlink1
[27464.823908] iwlwifi 0000:03:00.0: 0x00015974 | branchlink2
[27464.823909] iwlwifi 0000:03:00.0: 0x0000DBEA | interruptlink1
[27464.823910] iwlwifi 0000:03:00.0: 0x00000000 | interruptlink2
[27464.823910] iwlwifi 0000:03:00.0: 0x000001DE | data1
[27464.823911] iwlwifi 0000:03:00.0: 0x00000012 | data2
[27464.823912] iwlwifi 0000:03:00.0: 0x000001F3 | line
[27464.823913] iwlwifi 0000:03:00.0: 0x01807986 | beacon time
[27464.823914] iwlwifi 0000:03:00.0: 0xABB9A67A | tsf low
[27464.823915] iwlwifi 0000:03:00.0: 0x00000006 | tsf hi
[27464.823915] iwlwifi 0000:03:00.0: 0x00000000 | time gp1
[27464.823916] iwlwifi 0000:03:00.0: 0x320A83FE | time gp2
[27464.823917] iwlwifi 0000:03:00.0: 0x00000000 | time gp3
[27464.823918] iwlwifi 0000:03:00.0: 0x754312A8 | uCode version
[27464.823918] iwlwifi 0000:03:00.0: 0x000000B0 | hw version
[27464.823919] iwlwifi 0000:03:00.0: 0x00484B00 | board version
[27464.823920] iwlwifi 0000:03:00.0: 0x0000001C | hcmd
[27464.823921] iwlwifi 0000:03:00.0: 0xAFB63000 | isr0
[27464.823922] iwlwifi 0000:03:00.0: 0x1189F800 | isr1
[27464.823922] iwlwifi 0000:03:00.0: 0x00000E1A | isr2
[27464.823923] iwlwifi 0000:03:00.0: 0x0547FCC2 | isr3
[27464.823924] iwlwifi 0000:03:00.0: 0x00000000 | isr4
[27464.823925] iwlwifi 0000:03:00.0: 0x10800112 | isr_pref
[27464.823926] iwlwifi 0000:03:00.0: 0x000260A4 | wait_event
[27464.823926] iwlwifi 0000:03:00.0: 0x00000050 | l2p_control
[27464.823927] iwlwifi 0000:03:00.0: 0x00000130 | l2p_duration
[27464.823928] iwlwifi 0000:03:00.0: 0x0000003F | l2p_mhvalid
[27464.823929] iwlwifi 0000:03:00.0: 0x00101042 | l2p_addr_match
[27464.823930] iwlwifi 0000:03:00.0: 0x00000005 | lmpm_pmg_sel
[27464.823930] iwlwifi 0000:03:00.0: 0x13011136 | timestamp
[27464.823931] iwlwifi 0000:03:00.0: 0x00006878 | flow_handler
[27464.823979] iwlwifi 0000:03:00.0: Start IWL Event Log Dump: nothing in log
[27464.828011] ieee80211 phy0: Hardware restart was requested
[27464.830081] iwlwifi 0000:03:00.0: L1 Disabled - LTR Disabled
[27464.836785] iwlwifi 0000:03:00.0: L1 Disabled - LTR Disabled
[27464.836866] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
[27465.117920] iwlwifi 0000:03:00.0: L1 Disabled - LTR Disabled
[27465.124628] iwlwifi 0000:03:00.0: L1 Disabled - LTR Disabled
[27465.124710] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
This really looks like firmware problem. What can I do with these
microcode errors? Can you help me?
--
Pali Rohár
pali.rohar@gmail.com
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 195 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Centrino Advanced-N 6235 - Microcode SW error detected
2018-01-30 19:49 Centrino Advanced-N 6235 - Microcode SW error detected Pali Rohár
@ 2018-02-12 18:48 ` Luca Coelho
2018-02-12 18:52 ` Pali Rohár
0 siblings, 1 reply; 4+ messages in thread
From: Luca Coelho @ 2018-02-12 18:48 UTC (permalink / raw)
To: Pali Rohár, linux-wireless, ilw
On Tue, 2018-01-30 at 20:49 +0100, Pali Rohár wrote:
> Hello,
Hi Pali,
> for almost 3 years I have a problem with Intel wifi card Centrino
> Advanced-N 6235. Its firmware periodically crash and in dmesg I'm
> seeing
> a message "Microcode SW error detected".
>
> Problem happens independently of kernel versions (I tried 3.8, 3.13,
> 3.18, 4.0, 4.9). Currently I'm using Debian Stretch and its 4.9
> version.
>
> This wifi card is identified as:
>
> $ lspci -s 03:00.0 -vv
> 03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24)
> Subsystem: Intel Corporation Centrino Advanced-N 6235 AGN
[...]
> And here is example of dmesg error flood:
>
> [26624.998823] iwlwifi 0000:03:00.0: Microcode SW error detected. Restarting 0x2000000.
[...]
> [26624.999013] iwlwifi 0000:03:00.0: Loaded firmware version: 18.168.6.1
> [26624.999117] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
> [26624.999118] iwlwifi 0000:03:00.0: Status: 0x000002CC, count: 6
> [26624.999120] iwlwifi 0000:03:00.0: 0x000028AA | ADVANCED_SYSASSERT
> [27464.823779] iwlwifi 0000:03:00.0: Loaded firmware version: 18.168.6.1
> [27464.823903] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
> [27464.823904] iwlwifi 0000:03:00.0: Status: 0x000002CC, count: 6
> [27464.823906] iwlwifi 0000:03:00.0: 0x000028AA | ADVANCED_SYSASSERT
[...]
> This really looks like firmware problem. What can I do with these
> microcode errors? Can you help me?
Yes, this is a firmware problem. But unfortunately this is a really
old hardware (6 years old) and we don't support the firmware anymore.
I'm sorry, but there is really nothing we can do.
I hope the driver manages to recover properly and WiFi continues to
work on your machine without much disturbance when this happens.
--
Cheers,
Luca.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Centrino Advanced-N 6235 - Microcode SW error detected
2018-02-12 18:48 ` Luca Coelho
@ 2018-02-12 18:52 ` Pali Rohár
2018-02-12 20:01 ` Luca Coelho
0 siblings, 1 reply; 4+ messages in thread
From: Pali Rohár @ 2018-02-12 18:52 UTC (permalink / raw)
To: Luca Coelho; +Cc: linux-wireless
[-- Attachment #1: Type: text/plain, Size: 2189 bytes --]
On Monday 12 February 2018 20:48:47 Luca Coelho wrote:
> On Tue, 2018-01-30 at 20:49 +0100, Pali Rohár wrote:
> > Hello,
>
> Hi Pali,
>
>
> > for almost 3 years I have a problem with Intel wifi card Centrino
> > Advanced-N 6235. Its firmware periodically crash and in dmesg I'm
> > seeing
> > a message "Microcode SW error detected".
> >
> > Problem happens independently of kernel versions (I tried 3.8, 3.13,
> > 3.18, 4.0, 4.9). Currently I'm using Debian Stretch and its 4.9
> > version.
> >
> > This wifi card is identified as:
> >
> > $ lspci -s 03:00.0 -vv
> > 03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24)
> > Subsystem: Intel Corporation Centrino Advanced-N 6235 AGN
>
> [...]
>
> > And here is example of dmesg error flood:
> >
> > [26624.998823] iwlwifi 0000:03:00.0: Microcode SW error detected. Restarting 0x2000000.
>
> [...]
>
> > [26624.999013] iwlwifi 0000:03:00.0: Loaded firmware version: 18.168.6.1
> > [26624.999117] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
> > [26624.999118] iwlwifi 0000:03:00.0: Status: 0x000002CC, count: 6
> > [26624.999120] iwlwifi 0000:03:00.0: 0x000028AA | ADVANCED_SYSASSERT
> > [27464.823779] iwlwifi 0000:03:00.0: Loaded firmware version: 18.168.6.1
> > [27464.823903] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
> > [27464.823904] iwlwifi 0000:03:00.0: Status: 0x000002CC, count: 6
> > [27464.823906] iwlwifi 0000:03:00.0: 0x000028AA | ADVANCED_SYSASSERT
>
> [...]
>
> > This really looks like firmware problem. What can I do with these
> > microcode errors? Can you help me?
>
> Yes, this is a firmware problem. But unfortunately this is a really
> old hardware (6 years old) and we don't support the firmware anymore.
Hi! That is pity :-(
> I'm sorry, but there is really nothing we can do.
So can I debug this problem myself? Is there any documentation or
resources for this?
> I hope the driver manages to recover properly and WiFi continues to
> work on your machine without much disturbance when this happens.
>
> --
> Cheers,
> Luca.
--
Pali Rohár
pali.rohar@gmail.com
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 195 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Centrino Advanced-N 6235 - Microcode SW error detected
2018-02-12 18:52 ` Pali Rohár
@ 2018-02-12 20:01 ` Luca Coelho
0 siblings, 0 replies; 4+ messages in thread
From: Luca Coelho @ 2018-02-12 20:01 UTC (permalink / raw)
To: Pali Rohár; +Cc: linux-wireless
On Mon, 2018-02-12 at 19:52 +0100, Pali Rohár wrote:
> On Monday 12 February 2018 20:48:47 Luca Coelho wrote:
> > On Tue, 2018-01-30 at 20:49 +0100, Pali Rohár wrote:
> > > Hello,
> >
> > Hi Pali,
> >
> >
> > > for almost 3 years I have a problem with Intel wifi card Centrino
> > > Advanced-N 6235. Its firmware periodically crash and in dmesg I'm
> > > seeing
> > > a message "Microcode SW error detected".
> > >
> > > Problem happens independently of kernel versions (I tried 3.8,
> > > 3.13,
> > > 3.18, 4.0, 4.9). Currently I'm using Debian Stretch and its 4.9
> > > version.
> > >
> > > This wifi card is identified as:
> > >
> > > $ lspci -s 03:00.0 -vv
> > > 03:00.0 Network controller: Intel Corporation Centrino Advanced-N
> > > 6235 (rev 24)
> > > Subsystem: Intel Corporation Centrino Advanced-N 6235 AGN
> >
> > [...]
> >
> > > And here is example of dmesg error flood:
> > >
> > > [26624.998823] iwlwifi 0000:03:00.0: Microcode SW error
> > > detected. Restarting 0x2000000.
> >
> > [...]
> >
> > > [26624.999013] iwlwifi 0000:03:00.0: Loaded firmware version:
> > > 18.168.6.1
> > > [26624.999117] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
> > > [26624.999118] iwlwifi 0000:03:00.0: Status: 0x000002CC, count: 6
> > > [26624.999120] iwlwifi 0000:03:00.0: 0x000028AA |
> > > ADVANCED_SYSASSERT
> > > [27464.823779] iwlwifi 0000:03:00.0: Loaded firmware version:
> > > 18.168.6.1
> > > [27464.823903] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
> > > [27464.823904] iwlwifi 0000:03:00.0: Status: 0x000002CC, count: 6
> > > [27464.823906] iwlwifi 0000:03:00.0: 0x000028AA |
> > > ADVANCED_SYSASSERT
> >
> > [...]
> >
> > > This really looks like firmware problem. What can I do with these
> > > microcode errors? Can you help me?
> >
> > Yes, this is a firmware problem. But unfortunately this is a
> > really
> > old hardware (6 years old) and we don't support the firmware
> > anymore.
>
> Hi! That is pity :-(
>
> > I'm sorry, but there is really nothing we can do.
>
> So can I debug this problem myself? Is there any documentation or
> resources for this?
Nothing prevents you from trying to debug. Maybe find the exact
situation when this happens and try to make a workaround in the driver.
But unfortunately we don't have any public documentation for this
firmware, so you'll have to try to solve it in the driver entirely.
Sadly, I wouldn't have much hope in succeeding, since this is most
likely a purely firmware side bug which may be impossible to work
around in the driver. :(
Good luck!
--
Cheers,
Luca.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-02-12 20:01 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-01-30 19:49 Centrino Advanced-N 6235 - Microcode SW error detected Pali Rohár
2018-02-12 18:48 ` Luca Coelho
2018-02-12 18:52 ` Pali Rohár
2018-02-12 20:01 ` Luca Coelho
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.