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. -- 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/1356236 Title: [Samsung NP900X3C-A05DE] iwlwifi 0000:01:00.0: fail to flush all tx fifo queues Q 2 with Centrino Advanced-N 6235 wireless card Status in “linux” package in Ubuntu: Incomplete Bug description: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1356236/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
