iwlwifi 0000:03:00.0: fail to flush all tx fifo queues Q 2

[Marc Langer]

This is related to Bug #1328345. I have the same problem:

[11441.901900] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues Q 2
[11441.901913] iwlwifi 0000:03:00.0: Current SW read_ptr 158 write_ptr 196
[11441.901988] iwl data: 00000000: 00 00 00 c0 00 00 00 00 ff 3f 00 00 00 00 00 00 .........?......
[11441.902031] iwlwifi 0000:03:00.0: FH TRBs(0) = 0x00000000
[11441.902086] iwlwifi 0000:03:00.0: FH TRBs(1) = 0x801020ad
[11441.902129] iwlwifi 0000:03:00.0: FH TRBs(2) = 0x00000000
[11441.902176] iwlwifi 0000:03:00.0: FH TRBs(3) = 0x80300020
[11441.902221] iwlwifi 0000:03:00.0: FH TRBs(4) = 0x00000000
[11441.902261] iwlwifi 0000:03:00.0: FH TRBs(5) = 0x00000000
[11441.902307] iwlwifi 0000:03:00.0: FH TRBs(6) = 0x00000000
[11441.902350] iwlwifi 0000:03:00.0: FH TRBs(7) = 0x007090b5
[11441.902453] iwlwifi 0000:03:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [33,33]
[11441.902570] iwlwifi 0000:03:00.0: Q 1 is active and mapped to fifo 2 ra_tid 0x0000 [0,0]
[11441.902688] iwlwifi 0000:03:00.0: Q 2 is active and mapped to fifo 1 ra_tid 0x0000 [158,196]
[11441.902814] iwlwifi 0000:03:00.0: Q 3 is active and mapped to fifo 0 ra_tid 0x0000 [0,0]
[11441.902923] iwlwifi 0000:03:00.0: Q 4 is active and mapped to fifo 0 ra_tid 0x0000 [0,0]
[11441.903035] iwlwifi 0000:03:00.0: Q 5 is active and mapped to fifo 4 ra_tid 0x0000 [0,0]
[11441.903155] iwlwifi 0000:03:00.0: Q 6 is active and mapped to fifo 2 ra_tid 0x0000 [0,0]
[11441.903285] iwlwifi 0000:03:00.0: Q 7 is active and mapped to fifo 5 ra_tid 0x0000 [0,0]
[11441.903431] iwlwifi 0000:03:00.0: Q 8 is active and mapped to fifo 4 ra_tid 0x0000 [0,0]
[11441.903598] iwlwifi 0000:03:00.0: Q 9 is active and mapped to fifo 7 ra_tid 0x0000 [182,182]
[11441.903755] iwlwifi 0000:03:00.0: Q 10 is active and mapped to fifo 5 ra_tid 0x0000 [0,0]
[11441.903990] iwlwifi 0000:03:00.0: Q 11 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[11441.904154] iwlwifi 0000:03:00.0: Q 12 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[11441.904322] iwlwifi 0000:03:00.0: Q 13 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[11441.904473] iwlwifi 0000:03:00.0: Q 14 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[11441.904710] iwlwifi 0000:03:00.0: Q 15 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[11441.904893] iwlwifi 0000:03:00.0: Q 16 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[11441.905048] iwlwifi 0000:03:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[11441.905195] iwlwifi 0000:03:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[11441.905339] iwlwifi 0000:03:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]

This is a Lenovo Thinkpad X220i with Intel Corporation Centrino Advanced-N 6205.
The problem does happen some time after wake up from suspend to ram., but not at once.
I have to deassociate / associate to my WLAN to get it working again.

Marc

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-34-generic 3.13.0-34.60
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic i686
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: marc 1880 F.... pulseaudio
 /dev/snd/pcmC0D0p: marc 1880 F...m pulseaudio
Date: Tue Aug 26 20:41:11 2014
HibernationDevice: RESUME=UUID=d6c0a252-7713-49cd-8f99-a67bc788cddd
InstallationDate: Installed on 2012-09-02 (723 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3)
MachineType: LENOVO 428766G
ProcEnviron:
 LANGUAGE=de_DE
 TERM=xterm
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-34-generic root=UUID=413d3466-aae1-4fd0-ba89-a34e5b746d47 ro quiet splash vt.handoff=7
PulseList:
 Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
 No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-34-generic N/A
 linux-backports-modules-3.13.0-34-generic N/A
 linux-firmware 1.127.5
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-08-19 (7 days ago)
dmi.bios.date: 07/19/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 8DET63WW (1.33 )
dmi.board.asset.tag: Not Available
dmi.board.name: 428766G
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr8DET63WW(1.33):bd07/19/2012:svnLENOVO:pn428766G:pvrThinkPadX220:rvnLENOVO:rn428766G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 428766G
dmi.product.version: ThinkPad X220
dmi.sys.vendor: LENOVO

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.17 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'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-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/v3.17-rc2-utopic/

[Marc Langer (marc-marclanger)]

first I thought it is fixed in 3.17.0-031700rc2, but now it occured with this kernel, too.

[Emmanuel Grumbach (egrumbach)]

Please test the patch attached

[Seth Forshee (sforshee)]

I posted a test build for trusty with Emmanuel's patch.

http://people.canonical.com/~sforshee/lp1361809/linux-3.13.0-37.64+lp1361809v201410060628/

Please test and let us know your results. Thanks!

[Marc Langer (marc-marclanger)]

The patch fixes the problem, thanks