I've posted some more up-to-date test builds here, which include the patch Emmanuel is referring to.
http://people.canonical.com/~sforshee/iwlwifi/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1270808 Title: iwlwifi 0000:01:00.0: fail to flush all tx fifo queues Q 2 Status in The Linux Kernel: Unknown Status in “linux” package in Ubuntu: Incomplete Status in “linux-firmware” package in Ubuntu: Triaged Bug description: profile/gdm" pid=7426 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=115 ouid=0 [ 2390.836955] iwlwifi 0000:01:00.0: fail to flush all tx fifo queues Q 2 [ 2390.836969] iwlwifi 0000:01:00.0: Current SW read_ptr 210 write_ptr 99 [ 2390.837000] iwl data: 00000000: 00 00 fc ff 00 00 00 00 03 00 00 00 00 00 00 00 ................ [ 2390.837019] iwlwifi 0000:01:00.0: FH TRBs(0) = 0x00000000 [ 2390.837036] iwlwifi 0000:01:00.0: FH TRBs(1) = 0x801020e1 [ 2390.837053] iwlwifi 0000:01:00.0: FH TRBs(2) = 0x00000000 [ 2390.837071] iwlwifi 0000:01:00.0: FH TRBs(3) = 0x80300018 [ 2390.837088] iwlwifi 0000:01:00.0: FH TRBs(4) = 0x00000000 [ 2390.837105] iwlwifi 0000:01:00.0: FH TRBs(5) = 0x00000000 [ 2390.837123] iwlwifi 0000:01:00.0: FH TRBs(6) = 0x00000000 [ 2390.837140] iwlwifi 0000:01:00.0: FH TRBs(7) = 0x00709050 [ 2390.837203] iwlwifi 0000:01:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [25,25] [ 2390.837264] iwlwifi 0000:01:00.0: Q 1 is active and mapped to fifo 2 ra_tid 0x0000 [0,0] [ 2390.837324] iwlwifi 0000:01:00.0: Q 2 is active and mapped to fifo 1 ra_tid 0x0000 [210,99] [ 2390.837385] iwlwifi 0000:01:00.0: Q 3 is active and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2390.837446] iwlwifi 0000:01:00.0: Q 4 is active and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2390.837507] iwlwifi 0000:01:00.0: Q 5 is active and mapped to fifo 4 ra_tid 0x0000 [0,0] [ 2390.837567] iwlwifi 0000:01:00.0: Q 6 is active and mapped to fifo 2 ra_tid 0x0000 [0,0] [ 2390.837627] iwlwifi 0000:01:00.0: Q 7 is active and mapped to fifo 5 ra_tid 0x0000 [0,0] [ 2390.837688] iwlwifi 0000:01:00.0: Q 8 is active and mapped to fifo 4 ra_tid 0x0000 [0,0] [ 2390.837751] iwlwifi 0000:01:00.0: Q 9 is active and mapped to fifo 7 ra_tid 0x0000 [81,81] [ 2390.837814] iwlwifi 0000:01:00.0: Q 10 is active and mapped to fifo 5 ra_tid 0x0000 [0,0] [ 2390.837879] iwlwifi 0000:01:00.0: Q 11 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2390.837943] iwlwifi 0000:01:00.0: Q 12 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2390.838005] iwlwifi 0000:01:00.0: Q 13 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2390.838065] iwlwifi 0000:01:00.0: Q 14 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2390.838126] iwlwifi 0000:01:00.0: Q 15 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2390.838187] iwlwifi 0000:01:00.0: Q 16 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2390.838248] iwlwifi 0000:01:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2390.838308] iwlwifi 0000:01:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2390.838370] iwlwifi 0000:01:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2981.173273] iwlwifi 0000:01:00.0: fail to flush all tx fifo queues Q 2 [ 2981.173287] iwlwifi 0000:01:00.0: Current SW read_ptr 103 write_ptr 214 [ 2981.173321] iwl data: 00000000: 00 00 00 00 00 00 00 00 80 ff 3f 00 00 00 00 00 ..........?..... [ 2981.173342] iwlwifi 0000:01:00.0: FH TRBs(0) = 0x00000000 [ 2981.173363] iwlwifi 0000:01:00.0: FH TRBs(1) = 0x80102075 [ 2981.173380] iwlwifi 0000:01:00.0: FH TRBs(2) = 0x00000000 [ 2981.173397] iwlwifi 0000:01:00.0: FH TRBs(3) = 0x8030001d [ 2981.173415] iwlwifi 0000:01:00.0: FH TRBs(4) = 0x00000000 [ 2981.173433] iwlwifi 0000:01:00.0: FH TRBs(5) = 0x00000000 [ 2981.173450] iwlwifi 0000:01:00.0: FH TRBs(6) = 0x00000000 [ 2981.173467] iwlwifi 0000:01:00.0: FH TRBs(7) = 0x007090ba [ 2981.173529] iwlwifi 0000:01:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [30,30] [ 2981.173590] iwlwifi 0000:01:00.0: Q 1 is active and mapped to fifo 2 ra_tid 0x0000 [0,0] [ 2981.173650] iwlwifi 0000:01:00.0: Q 2 is active and mapped to fifo 1 ra_tid 0x0000 [103,214] [ 2981.173712] iwlwifi 0000:01:00.0: Q 3 is active and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2981.173772] iwlwifi 0000:01:00.0: Q 4 is active and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2981.173832] iwlwifi 0000:01:00.0: Q 5 is active and mapped to fifo 4 ra_tid 0x0000 [0,0] [ 2981.173920] iwlwifi 0000:01:00.0: Q 6 is active and mapped to fifo 2 ra_tid 0x0000 [0,0] [ 2981.173981] iwlwifi 0000:01:00.0: Q 7 is active and mapped to fifo 5 ra_tid 0x0000 [0,0] [ 2981.174041] iwlwifi 0000:01:00.0: Q 8 is active and mapped to fifo 4 ra_tid 0x0000 [0,0] [ 2981.174102] iwlwifi 0000:01:00.0: Q 9 is active and mapped to fifo 7 ra_tid 0x0000 [187,187] [ 2981.174162] iwlwifi 0000:01:00.0: Q 10 is active and mapped to fifo 5 ra_tid 0x0000 [0,0] [ 2981.174223] iwlwifi 0000:01:00.0: Q 11 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2981.174284] iwlwifi 0000:01:00.0: Q 12 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2981.174344] iwlwifi 0000:01:00.0: Q 13 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2981.174404] iwlwifi 0000:01:00.0: Q 14 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2981.174465] iwlwifi 0000:01:00.0: Q 15 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2981.174525] iwlwifi 0000:01:00.0: Q 16 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2981.174586] iwlwifi 0000:01:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2981.174647] iwlwifi 0000:01:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 2981.174707] iwlwifi 0000:01:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 3106.769330] iwlwifi 0000:01:00.0: fail to flush all tx fifo queues Q 2 [ 3106.769344] iwlwifi 0000:01:00.0: Current SW read_ptr 86 write_ptr 107 [ 3106.769376] iwl data: 00000000: 00 00 c0 ff 00 00 00 00 3f 00 00 00 00 00 00 00 ........?....... [ 3106.769395] iwlwifi 0000:01:00.0: FH TRBs(0) = 0x00000000 [ 3106.769412] iwlwifi 0000:01:00.0: FH TRBs(1) = 0x80102065 [ 3106.769430] iwlwifi 0000:01:00.0: FH TRBs(2) = 0x00000000 [ 3106.769447] iwlwifi 0000:01:00.0: FH TRBs(3) = 0x8030001e [ 3106.769465] iwlwifi 0000:01:00.0: FH TRBs(4) = 0x00000000 [ 3106.769482] iwlwifi 0000:01:00.0: FH TRBs(5) = 0x00000000 [ 3106.769499] iwlwifi 0000:01:00.0: FH TRBs(6) = 0x00000000 [ 3106.769517] iwlwifi 0000:01:00.0: FH TRBs(7) = 0x007090f5 [ 3106.769579] iwlwifi 0000:01:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [31,31] [ 3106.769640] iwlwifi 0000:01:00.0: Q 1 is active and mapped to fifo 2 ra_tid 0x0000 [0,0] [ 3106.769700] iwlwifi 0000:01:00.0: Q 2 is active and mapped to fifo 1 ra_tid 0x0000 [86,107] [ 3106.769761] iwlwifi 0000:01:00.0: Q 3 is active and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 3106.769822] iwlwifi 0000:01:00.0: Q 4 is active and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 3106.769882] iwlwifi 0000:01:00.0: Q 5 is active and mapped to fifo 4 ra_tid 0x0000 [0,0] [ 3106.769942] iwlwifi 0000:01:00.0: Q 6 is active and mapped to fifo 2 ra_tid 0x0000 [0,0] [ 3106.770002] iwlwifi 0000:01:00.0: Q 7 is active and mapped to fifo 5 ra_tid 0x0000 [0,0] [ 3106.770063] iwlwifi 0000:01:00.0: Q 8 is active and mapped to fifo 4 ra_tid 0x0000 [0,0] [ 3106.770124] iwlwifi 0000:01:00.0: Q 9 is active and mapped to fifo 7 ra_tid 0x0000 [246,246] [ 3106.770184] iwlwifi 0000:01:00.0: Q 10 is active and mapped to fifo 5 ra_tid 0x0000 [0,0] [ 3106.770246] iwlwifi 0000:01:00.0: Q 11 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 3106.770306] iwlwifi 0000:01:00.0: Q 12 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 3106.770366] iwlwifi 0000:01:00.0: Q 13 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 3106.770426] iwlwifi 0000:01:00.0: Q 14 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 3106.770486] iwlwifi 0000:01:00.0: Q 15 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 3106.770547] iwlwifi 0000:01:00.0: Q 16 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 3106.770607] iwlwifi 0000:01:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 3106.770669] iwlwifi 0000:01:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 3106.770729] iwlwifi 0000:01:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 7065.094473] iwlwifi 0000:01:00.0: fail to flush all tx fifo queues Q 2 [ 7065.094487] iwlwifi 0000:01:00.0: Current SW read_ptr 224 write_ptr 45 [ 7065.094519] iwl data: 00000000: 00 00 00 00 00 00 00 00 ff ff 00 00 00 00 00 00 ................ [ 7065.094537] iwlwifi 0000:01:00.0: FH TRBs(0) = 0x00000000 [ 7065.094555] iwlwifi 0000:01:00.0: FH TRBs(1) = 0x801020ef [ 7065.094572] iwlwifi 0000:01:00.0: FH TRBs(2) = 0x00000000 [ 7065.094589] iwlwifi 0000:01:00.0: FH TRBs(3) = 0x8030003f [ 7065.094607] iwlwifi 0000:01:00.0: FH TRBs(4) = 0x00000000 [ 7065.094624] iwlwifi 0000:01:00.0: FH TRBs(5) = 0x00000000 [ 7065.094641] iwlwifi 0000:01:00.0: FH TRBs(6) = 0x00000000 [ 7065.094658] iwlwifi 0000:01:00.0: FH TRBs(7) = 0x007090a2 [ 7065.094720] iwlwifi 0000:01:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [64,64] [ 7065.094781] iwlwifi 0000:01:00.0: Q 1 is active and mapped to fifo 2 ra_tid 0x0000 [0,0] [ 7065.094841] iwlwifi 0000:01:00.0: Q 2 is active and mapped to fifo 1 ra_tid 0x0000 [224,45] [ 7065.094901] iwlwifi 0000:01:00.0: Q 3 is active and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 7065.094961] iwlwifi 0000:01:00.0: Q 4 is active and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 7065.095021] iwlwifi 0000:01:00.0: Q 5 is active and mapped to fifo 4 ra_tid 0x0000 [0,0] [ 7065.095081] iwlwifi 0000:01:00.0: Q 6 is active and mapped to fifo 2 ra_tid 0x0000 [0,0] [ 7065.095142] iwlwifi 0000:01:00.0: Q 7 is active and mapped to fifo 5 ra_tid 0x0000 [0,0] [ 7065.095203] iwlwifi 0000:01:00.0: Q 8 is active and mapped to fifo 4 ra_tid 0x0000 [0,0] [ 7065.095265] iwlwifi 0000:01:00.0: Q 9 is active and mapped to fifo 7 ra_tid 0x0000 [163,163] [ 7065.095324] iwlwifi 0000:01:00.0: Q 10 is active and mapped to fifo 5 ra_tid 0x0000 [0,0] [ 7065.095386] iwlwifi 0000:01:00.0: Q 11 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 7065.095446] iwlwifi 0000:01:00.0: Q 12 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 7065.095507] iwlwifi 0000:01:00.0: Q 13 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 7065.095567] iwlwifi 0000:01:00.0: Q 14 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 7065.095628] iwlwifi 0000:01:00.0: Q 15 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 7065.095688] iwlwifi 0000:01:00.0: Q 16 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 7065.095749] iwlwifi 0000:01:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 7065.095809] iwlwifi 0000:01:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [ 7065.095869] iwlwifi 0000:01:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-4-generic 3.13.0-4.19 ProcVersionSignature: Ubuntu 3.13.0-4.19-generic 3.13.0-rc8 Uname: Linux 3.13.0-4-generic x86_64 ApportVersion: 2.13.1-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: caravena 2037 F.... pulseaudio /dev/snd/pcmC0D0p: caravena 2037 F...m pulseaudio CRDA: country CL: (2402 - 2482 @ 40), (N/A, 20) (5170 - 5250 @ 40), (N/A, 20) (5250 - 5330 @ 40), (N/A, 20), DFS (5735 - 5835 @ 40), (N/A, 20) CurrentDesktop: GNOME Date: Mon Jan 20 09:19:41 2014 HibernationDevice: RESUME=UUID=360bd2d2-4f44-4311-86d6-4781ac81ee87 InstallationDate: Installed on 2013-12-13 (37 days ago) InstallationMedia: Ubuntu-GNOME 14.04 "Trusty Tahr" - Alpha amd64 (20131213) MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.13.0-4-generic root=UUID=0c67119c-ddae-476a-b510-142ec598f691 ro rootflags=subvol=@ quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-4-generic N/A linux-backports-modules-3.13.0-4-generic N/A linux-firmware 1.121 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/15/2013 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P14AAJ dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 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.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 530U3C/530U4C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. 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