Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.14 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/v3.14-trusty/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1305406 Title: [8086:4238] iwlwifi: fail to flush all tx fifo queues Q 0 Status in “linux” package in Ubuntu: Incomplete Bug description: I have a Lenovo ThinkPad X201 Tablet with an Intel Centrino Ultimate-N 6300 AGN wireless card. Ever since I have upgraded to Ubuntu 13.10 from Ubuntu 12.10, I keep experiencing this annoying issue on wireless networks with multiple APs: a TX queue gets stuck, and the wireless card cannot send any packets. The Wi-Fi LED constantly flashes, and sometimes, it becomes nearly impossible to restart the wireless card using Fn+F5. The NetworkManager connection is setup as follows: SSID: IllinoisNet BSSID: DA:BE:76:xx:xx:xx Security: WPA/WPA2 Enterprise Authentication: Protected EAP (PEAP) CA Certificate: /etc/ssl/certs/AddTrust_External_Root.pem PEAP Version: Automatic Inner Authentication: MSCHAPv2 Notice that I have manually specified a BSSID to force the system to use only one AP (since I have not found a way to reduce the roaming aggressiveness on Intel wireless cards in Linux). Attached is the Wireshark log and the syslog output while TX queue 0 is stuck. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-19-generic 3.11.0-19.33 ProcVersionSignature: Ubuntu 3.11.0-19.33-generic 3.11.10.5 Uname: Linux 3.11.0-19-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ron 2599 F.... pulseaudio Date: Wed Apr 9 21:36:49 2014 HibernationDevice: RESUME=UUID=70381092-dbb1-458c-8c5c-68850e61086c InstallationDate: Installed on 2013-02-28 (405 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MachineType: LENOVO 0831CTO MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-19-generic root=UUID=606d1eed-eeca-4acb-a739-6796a7f7432b ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-19-generic N/A linux-backports-modules-3.11.0-19-generic N/A linux-firmware 1.116.2 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2014-01-22 (77 days ago) dmi.bios.date: 04/26/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET69WW (1.39 ) dmi.board.name: 0831CTO 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:bvr6QET69WW(1.39):bd04/26/2012:svnLENOVO:pn0831CTO:pvrThinkPadX201Tablet:rvnLENOVO:rn0831CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 0831CTO dmi.product.version: ThinkPad X201 Tablet dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1305406/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
