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[Samsung NP900X3C-A05DE] iwlwifi 0000:01:00.0: fail to flush all tx fifo queues Q 2 with Centrino Advanced-N 6235 wireless card

Bug #1356236 reported by cd311
12
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Incomplete
Medium
Unassigned

Bug Description

01:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6235 [8086:088e] (rev 24)
 Subsystem: Intel Corporation Centrino Advanced-N 6235 AGN [8086:4060]

The network I want to connect is a WPA-EAP wireless network called eduroam https://www.eduroam.org/ . My machine data:
Wlan chip is a
           *-network
                description: Wireless interface
                product: Centrino Advanced-N 6235
                vendor: Intel Corporation
                physical id: 0
                bus info: pci@0000:01:00.0
                logical name: wlan0
                version: 24
                serial: c8:f7:33:19:7e:f4
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                configuration: broadcast=yes driver=iwlwifi driverversion=3.13.0-32-generic firmware=18.168.6.1 ip=172.19.3.235 latency=0 link=yes multicast=yes wireless=IEEE 802.11abg
                resources: irq:49 memory:f0600000-f0601fff

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-32-generic 3.13.0-32.57
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: degenkolb 2203 F.... pulseaudio
                      degenkolb 2587 F.... pulseaudio
CurrentDesktop: KDE
Date: Wed Aug 13 10:32:45 2014
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=d7406378-f782-4cab-80d9-4fe3c2f4c94c
InstallationDate: Installed on 2013-12-05 (250 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X4C/900X4D
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=04d6e506-7152-4b6c-b19f-3877e0710fc6 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-32-generic N/A
 linux-backports-modules-3.13.0-32-generic N/A
 linux-firmware 1.127.5
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-06-18 (55 days ago)
dmi.bios.date: 09/19/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P02ABK
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: NP900X3C-A05DE
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP02ABK:bd09/19/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP900X3C-A05DE:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 900X3C/900X3D/900X4C/900X4D
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

See original description
Revision history for this message
cd311 (cd311) wrote :
description: updated
description: updated
Revision history for this message
Brad Figg (brad-figg) wrote : Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed
penalvch (penalvch)
description: updated
summary: - iwlwifi 0000:01:00.0: fail to flush all tx fifo queues Q 2 with Centrino
- Advanced-N 6235 wireless card
+ [Samsung NP900X3C-A05DE] iwlwifi 0000:01:00.0: fail to flush all tx fifo
+ queues Q 2 with Centrino Advanced-N 6235 wireless card
Revision history for this message
penalvch (penalvch) wrote :

cd311, thank you for reporting this and helping make Ubuntu better. Could you please test the latest upstream kernel available from the very top line at the top of the page (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested exactly shown as:
kernel-fixed-upstream-3.16

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description.

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

Changed in linux (Ubuntu):
importance: Undecided → Medium
status: Confirmed → Incomplete
Revision history for this message
cd311 (cd311) wrote :
Download full text (10.6 KiB)

I tested with the 3.16.1-031601-generic #201408140014 from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16.1-utopic/

The kernel booted without any problems. However after a short time in the mentioned network the same error happend again.

Following a snip from dmesg

[ 158.868825] iwlwifi 0000:01:00.0: fail to flush all tx fifo queues Q 2
[ 158.868842] iwlwifi 0000:01:00.0: Current SW read_ptr 198 write_ptr 144
[ 158.868957] iwl data: 00000000: c0 ff 3f 00 00 00 00 00 00 00 00 00 00 00 00 00 ..?.............
[ 158.869016] iwlwifi 0000:01:00.0: FH TRBs(0) = 0x00000000
[ 158.869117] iwlwifi 0000:01:00.0: FH TRBs(1) = 0x801020d5
[ 158.869189] iwlwifi 0000:01:00.0: FH TRBs(2) = 0x00000000
[ 158.869272] iwlwifi 0000:01:00.0: FH TRBs(3) = 0x80300025
[ 158.869332] iwlwifi 0000:01:00.0: FH TRBs(4) = 0x00000000
[ 158.869410] iwlwifi 0000:01:00.0: FH TRBs(5) = 0x00000000
[ 158.869489] iwlwifi 0000:01:00.0: FH TRBs(6) = 0x00000000
[ 158.869547] iwlwifi 0000:01:00.0: FH TRBs(7) = 0x0070905b
[ 158.869714] iwlwifi 0000:01:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [38,38]
[ 158.869873] iwlwifi 0000:01:00.0: Q 1 is active and mapped to fifo 2 ra_tid 0x0000 [0,0]
[ 158.870040] iwlwifi 0000:01:00.0: Q 2 is active and mapped to fifo 1 ra_tid 0x0000 [198,144]
[ 158.870205] iwlwifi 0000:01:00.0: Q 3 is active and mapped to fifo 0 ra_tid 0x0000 [0,0]
[ 158.870366] iwlwifi 0000:01:00.0: Q 4 is active and mapped to fifo 0 ra_tid 0x0000 [0,0]
[ 158.870532] iwlwifi 0000:01:00.0: Q 5 is active and mapped to fifo 4 ra_tid 0x0000 [0,0]
[ 158.870693] iwlwifi 0000:01:00.0: Q 6 is active and mapped to fifo 2 ra_tid 0x0000 [0,0]
[ 158.870859] iwlwifi 0000:01:00.0: Q 7 is active and mapped to fifo 5 ra_tid 0x0000 [0,0]
[ 158.871026] iwlwifi 0000:01:00.0: Q 8 is active and mapped to fifo 4 ra_tid 0x0000 [0,0]
[ 158.871192] iwlwifi 0000:01:00.0: Q 9 is active and mapped to fifo 7 ra_tid 0x0000 [92,92]
[ 158.871358] iwlwifi 0000:01:00.0: Q 10 is active and mapped to fifo 5 ra_tid 0x0000 [0,0]
[ 158.871512] iwlwifi 0000:01:00.0: Q 11 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[ 158.871678] iwlwifi 0000:01:00.0: Q 12 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[ 158.871838] iwlwifi 0000:01:00.0: Q 13 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[ 158.872004] iwlwifi 0000:01:00.0: Q 14 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[ 158.872170] iwlwifi 0000:01:00.0: Q 15 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[ 158.872336] iwlwifi 0000:01:00.0: Q 16 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[ 158.872503] iwlwifi 0000:01:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[ 158.872669] iwlwifi 0000:01:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[ 158.872866] iwlwifi 0000:01:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
[ 207.918913] iwlwifi 0000:01:00.0: fail to flush all tx fifo queues Q 2
[ 207.918919] iwlwifi 0000:01:00.0: Current SW read_ptr 192 write_ptr 130
[ 207.919005] iwl data: 00000000: ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 207.919053] iwlwifi 0000:01:00.0: FH TRBs(0) = 0x00000000
[...

Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
penalvch (penalvch) wrote :

cd311, could you please test the latest mainline kernel via http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.17-rc1-utopic/ and advise to the results?

Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
cd311 (cd311) wrote :

Hi

since I do not use the eduroam wireless network daily I couldn't test it earlier.

Today I used it for about an hour with the 3.17.0-031700rc3-generic from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.17-rc3-utopic/ without any problems. I even "stress tested" the wireless for about 15 minutes by downloading a 1GB file.

So for now I would say the problem disappeared with the 3.17 RC3.

penalvch (penalvch)
tags: added: kernel-fixed-upstream-3.17-rc3
Revision history for this message
cd311 (cd311) wrote :

I'm sorry to inform even with 3.17.0-031700rc3-generic the problem does not seemed to be fixed.
Today I used the wireless in question for the first time since my last post and after about 15 minutes usage I got bad connectivity and found the following in dmesg.

[10806.700419] iwlwifi 0000:01:00.0: fail to flush all tx fifo queues Q 2
[10806.700424] iwlwifi 0000:01:00.0: Current SW read_ptr 168 write_ptr 237
[10806.700510] iwl data: 00000000: 00 00 00 00 00 00 00 00 00 ff ff 00 00 00 00 00 ................
[10806.700564] iwlwifi 0000:01:00.0: FH TRBs(0) = 0x00000000
and so on.

kernel is still
3.17.0-031700rc3-generic #201408312235 SMP Mon Sep 1 02:36:10 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

However today I resumed the machine from memory. Last time I used the network for about an hour without any problems I did a fresh boot. So maybe the problem is in wake from sleep part of the module.

Also I'm afraid I currently don't have the free time to do the mentioned bisect if I find a Kernel that works. However I will continue using the latest kernel from mainline and report back if I find one without the flush problem.

Revision history for this message
penalvch (penalvch) wrote :

cd311, could you please test the latest mainline kernel via http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.17-rc4-utopic/ and advise to the results?

tags: removed: kernel-fixed-upstream-3.17-rc3
description: updated
Revision history for this message
Emmanuel Grumbach (egrumbach) wrote :

Please test the patch attached

Ubuntu Foundations Team Bug Bot (crichton)
tags: added: patch
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