Michael Kiermaier, the way to make the issue go away permanent is to determine why disabling power management is necessary in the first place.
Hence, to keep this relevant to upstream, one would want to periodically check for, and test the latest mainline kernel (now 4.10) as it is released. Could you please advise? ** Description changed: On my Lenovo X61s, WLAN randomly stops working, typically after a few hours of running time. I don't know any remedy but to reboot. This behavior started maybe 2 or 3 months ago. My maching is usually kept up to date, so the problem might be caused by some kernel update at that time. The relevant part in dmesg (attached) starts with [ 5812.412141] iwl4965 0000:03:00.0: Error sending C_POWER_TBL: time out after 500ms. [ 5812.412156] iwl4965 0000:03:00.0: set power fail, ret = -110 [ 5813.424145] iwl4965 0000:03:00.0: Error sending C_ADD_STA: time out after 500ms. [ 5813.424162] wls3: HW problem - can not stop rx aggregation for **:**:**:**:**:** tid 0 [ 5813.924092] iwl4965 0000:03:00.0: Error sending C_ADD_STA: time out after 500ms. [ 5813.924107] wls3: HW problem - can not stop rx aggregation for **:**:**:**:**:** tid 5 [ 5814.052099] iwl4965 0000:03:00.0: Queue 4 stuck for 2500 ms. [ 5814.052124] iwl4965 0000:03:00.0: On demand firmware reload [ 5814.424142] iwl4965 0000:03:00.0: Error sending C_ADD_STA: time out after 500ms. [ 5814.424168] wls3: HW problem - can not stop rx aggregation for **:**:**:**:**:** tid 6 [ 5814.424421] iwl4965 0000:03:00.0: Master Disable Timed Out, 100 usec [ 5814.424468] ieee80211 phy0: Hardware restart was requested [ 5814.448160] iwl4965 0000:03:00.0: idx 0 not used in uCode key table. [ 5814.948182] iwl4965 0000:03:00.0: Error sending C_ADD_STA: time out after 500ms. [ 5814.948201] wls3: failed to remove key (0, **:**:**:**:**:**) from hardware (-110) [ 5818.964158] iwl4965 0000:03:00.0: START_ALIVE timeout after 4000ms. + WORKAROUND: Turn off WiFi power management: + sudo iw dev X set power_save off + ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-38-generic 4.4.0-38.57 ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19 Uname: Linux 4.4.0-38-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: mki 2093 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC0: mki 2093 F.... pulseaudio CurrentDesktop: XFCE Date: Tue Sep 27 13:29:36 2016 HibernationDevice: RESUME=/dev/mapper/vgubuntu-swap InstallationDate: Installed on 2016-06-05 (113 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) MachineType: LENOVO 76693JG PccardctlIdent: - Socket 0: - no product info available + Socket 0: + no product info available PccardctlStatus: - Socket 0: - no card + Socket 0: + no card ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-38-generic root=/dev/mapper/vgubuntu-system ro RelatedPackageVersions: - linux-restricted-modules-4.4.0-38-generic N/A - linux-backports-modules-4.4.0-38-generic N/A - linux-firmware 1.157.3 + linux-restricted-modules-4.4.0-38-generic N/A + linux-backports-modules-4.4.0-38-generic N/A + linux-firmware 1.157.3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/22/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 7NETC2WW (2.22 ) dmi.board.name: 76693JG 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:bvr7NETC2WW(2.22):bd03/22/2011:svnLENOVO:pn76693JG:pvrThinkPadX61s:rvnLENOVO:rn76693JG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 76693JG dmi.product.version: ThinkPad X61s dmi.sys.vendor: LENOVO -- 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/1628061 Title: iwl4965 crashes randomly Status in linux package in Ubuntu: Expired Bug description: On my Lenovo X61s, WLAN randomly stops working, typically after a few hours of running time. I don't know any remedy but to reboot. This behavior started maybe 2 or 3 months ago. My maching is usually kept up to date, so the problem might be caused by some kernel update at that time. The relevant part in dmesg (attached) starts with [ 5812.412141] iwl4965 0000:03:00.0: Error sending C_POWER_TBL: time out after 500ms. [ 5812.412156] iwl4965 0000:03:00.0: set power fail, ret = -110 [ 5813.424145] iwl4965 0000:03:00.0: Error sending C_ADD_STA: time out after 500ms. [ 5813.424162] wls3: HW problem - can not stop rx aggregation for **:**:**:**:**:** tid 0 [ 5813.924092] iwl4965 0000:03:00.0: Error sending C_ADD_STA: time out after 500ms. [ 5813.924107] wls3: HW problem - can not stop rx aggregation for **:**:**:**:**:** tid 5 [ 5814.052099] iwl4965 0000:03:00.0: Queue 4 stuck for 2500 ms. [ 5814.052124] iwl4965 0000:03:00.0: On demand firmware reload [ 5814.424142] iwl4965 0000:03:00.0: Error sending C_ADD_STA: time out after 500ms. [ 5814.424168] wls3: HW problem - can not stop rx aggregation for **:**:**:**:**:** tid 6 [ 5814.424421] iwl4965 0000:03:00.0: Master Disable Timed Out, 100 usec [ 5814.424468] ieee80211 phy0: Hardware restart was requested [ 5814.448160] iwl4965 0000:03:00.0: idx 0 not used in uCode key table. [ 5814.948182] iwl4965 0000:03:00.0: Error sending C_ADD_STA: time out after 500ms. [ 5814.948201] wls3: failed to remove key (0, **:**:**:**:**:**) from hardware (-110) [ 5818.964158] iwl4965 0000:03:00.0: START_ALIVE timeout after 4000ms. WORKAROUND: Turn off WiFi power management: sudo iw dev X set power_save off ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-38-generic 4.4.0-38.57 ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19 Uname: Linux 4.4.0-38-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mki 2093 F.... pulseaudio CurrentDesktop: XFCE Date: Tue Sep 27 13:29:36 2016 HibernationDevice: RESUME=/dev/mapper/vgubuntu-swap InstallationDate: Installed on 2016-06-05 (113 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) MachineType: LENOVO 76693JG PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-38-generic root=/dev/mapper/vgubuntu-system ro RelatedPackageVersions: linux-restricted-modules-4.4.0-38-generic N/A linux-backports-modules-4.4.0-38-generic N/A linux-firmware 1.157.3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/22/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 7NETC2WW (2.22 ) dmi.board.name: 76693JG 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:bvr7NETC2WW(2.22):bd03/22/2011:svnLENOVO:pn76693JG:pvrThinkPadX61s:rvnLENOVO:rn76693JG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 76693JG dmi.product.version: ThinkPad X61s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1628061/+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
