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[Bug 1221202] Re: 8086:08b1 iwlwifi crash with "Microcode SW error detected"

 

Emmanuel Grumbach 11/09/2013
To : Toufilk ...
Cc : linux-wireless@xxxxxxxxxxxxxxx

Hi,
 
thanks for your report
 
> [   74.374420] iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
> [   74.374429] iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
> [   74.374438] iwlwifi 0000:01:00.0: 0x0000003C | NMI_INTERRUPT_DATA_ACTION_PT
> [   74.374445] iwlwifi 0000:01:00.0: 0x059002A3 | uPc
> [   74.374452] iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
> [   74.374459] iwlwifi 0000:01:00.0: 0x00000C8A | branchlink2
> [   74.374466] iwlwifi 0000:01:00.0: 0x00014078 | interruptlink1
> [   74.374473] iwlwifi 0000:01:00.0: 0x00000676 | interruptlink2
> [   74.374480] iwlwifi 0000:01:00.0: 0x00014D9A | data1
> [   74.374486] iwlwifi 0000:01:00.0: 0x00000008 | data2
> [   74.374493] iwlwifi 0000:01:00.0: 0x03030000 | data3
> [   74.374500] iwlwifi 0000:01:00.0: 0x59009500 | beacon time
> [   74.374507] iwlwifi 0000:01:00.0: 0x539A8E27 | tsf low
> [   74.374514] iwlwifi 0000:01:00.0: 0x00000040 | tsf hi
> [   74.374521] iwlwifi 0000:01:00.0: 0x00000000 | time gp1
> [   74.374528] iwlwifi 0000:01:00.0: 0x0431E87A | time gp2
> [   74.374534] iwlwifi 0000:01:00.0: 0x00000000 | time gp3
> [   74.374541] iwlwifi 0000:01:00.0: 0x00321600 | uCode version
> [   74.374548] iwlwifi 0000:01:00.0: 0x00000144 | hw version
> [   74.374555] iwlwifi 0000:01:00.0: 0x00489204 | board version
> [   74.374562] iwlwifi 0000:01:00.0: 0x0018001C | hcmd
> [   74.374569] iwlwifi 0000:01:00.0: 0x26F63800 | isr0
> [   74.374575] iwlwifi 0000:01:00.0: 0x01018000 | isr1
> [   74.374582] iwlwifi 0000:01:00.0: 0x0000000A | isr2
> [   74.374589] iwlwifi 0000:01:00.0: 0x4041FC81 | isr3
> [   74.374596] iwlwifi 0000:01:00.0: 0x00000000 | isr4
> [   74.374603] iwlwifi 0000:01:00.0: 0x10800112 | isr_pref
> [   74.374609] iwlwifi 0000:01:00.0: 0x00014D9A | wait_event
> [   74.374616] iwlwifi 0000:01:00.0: 0x000000D0 | l2p_control
> [   74.374623] iwlwifi 0000:01:00.0: 0x00019C20 | l2p_duration
> [   74.374630] iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
> [   74.374637] iwlwifi 0000:01:00.0: 0x000000CF | l2p_addr_match
> [   74.374644] iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
> [   74.374651] iwlwifi 0000:01:00.0: 0xA3925B33 | timestamp
> [   74.374658] iwlwifi 0000:01:00.0: 0x00346878 | flow_handler
> [   74.374667] ieee80211 phy0: Hardware restart was requested
 
This is a firmware issue that has been fixed in later versions that we
haven't released yet. I hope that I will able to release the new
firmware very soon.

-----------------
Emmanuel Grumbach 11/09/2013
To : Toufilk ...
Attached : iwlwifi-7260-7.ucode

Ok - back to you privately.
I am attached a new firmware - I will be very clear here.
Please do not share this firmware with anybody - no guarantee of anything.
As I said, we will have an official release of a newer firmware with
this issue fixed.
 
Please report back with this firmware.

-----------------
To which I replied :

Thanks,
 
tested and working!
 
Cheers

-- 
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https://bugs.launchpad.net/bugs/1221202

Title:
  8086:08b1 iwlwifi crash with "Microcode SW error detected"

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I have an intel 7260 wifi card (it is a dual band). I have had a **lot** of trouble connecting to my router (also dual band). I don't know how I did but I managed to connect to the 2.4GHz AP but it is not very stable. However, I've never managed to connect to the 5.5GHz AP while it is listed as available. By looking at dmesg, the driver is crashing:
  ...
  [   74.358662] wlan0: authenticate with a6:b1:e9:ae:61:a2
  [   74.359848] wlan0: send auth to a6:b1:e9:ae:61:a2 (try 1/3)
  [   74.360756] wlan0: authenticated
  [   74.364053] wlan0: associate with a6:b1:e9:ae:61:a2 (try 1/3)
  [   74.373879] iwlwifi 0000:01:00.0: Microcode SW error detected.  Restarting 0x2000000.
  ...

  Then the wifi is dead and I have to reboot.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-4-generic 3.11.0-4.9
  ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7
  Uname: Linux 3.11.0-4-generic x86_64
  ApportVersion: 2.12.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  francois   1871 F.... pulseaudio
   /dev/snd/controlC1:  francois   1871 F.... pulseaudio
  Date: Thu Sep  5 14:28:05 2013
  HibernationDevice: RESUME=UUID=336e37fb-47a2-406c-ad64-630659d38f70
  InstallationDate: Installed on 2013-07-30 (36 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130729)
  MachineType: Sony Corporation SVP1321C5E
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-4-generic root=UUID=fe28f457-7a8a-4185-866b-115aded2e40c ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-4-generic N/A
   linux-backports-modules-3.11.0-4-generic  N/A
   linux-firmware                            1.113
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/17/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: R0270V7
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR0270V7:bd05/17/2013:svnSonyCorporation:pnSVP1321C5E:pvrC60C1VKQ:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: SVP1321C5E
  dmi.product.version: C60C1VKQ
  dmi.sys.vendor: Sony Corporation

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