I have been bisecting around the 3.13 and 3.14 kernel releases: The 3.13.11 fails, but far less often than the 3.13.0, and with a dmesg trace that indicates an attempt to trace a USB issue of this kind. See dmesg_3_13_7: [ 20.158116] ------------[ cut here ]------------ [ 20.158126] WARNING: CPU: 0 PID: 0 at /home/apw/COD/linux/drivers/usb/host/xhci-ring.c:1572 handle_cmd_completion+0x35e/0x3c0() [ 20.158128] Modules linked in: ctr ccm uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core usbmouse bnep rfcomm videodev joydev ath3k btusb bluetooth snd_hda_ [ 20.158198] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.13.7-031307-generic #201403240156 [ 20.158200] Hardware name: LENOVO 80EU/Lenovo B50-70, BIOS 9DCN29WW(V2.09) 11/21/2014 [ 20.158201] 00000000 00000000 f2c0bea4 c166f493 c18f2580 f2c0bed4 c1058ee4 c186e724 [ 20.158207] 00000000 00000000 c18f2580 00000624 c14f04be c14f04be f2daa000 f25d3640 [ 20.158213] 00000018 f2c0bee4 c1058f22 00000009 00000000 f2c0bf28 c14f04be f27e18ac [ 20.158218] Call Trace: [ 20.158225] [<c166f493>] dump_stack+0x41/0x52 ... It is becoming more and more difficult to bisect.
3.14.0 seems the first release solving the issue (OK on 21 tries, to be confirmed). So I will simply stick on ppa 3.14-trusty until the next LTS, or upgrade to utopic or vivid. ** Attachment added: "dmesg_3.13.7" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1476783/+attachment/4437661/+files/dmesg_3.13.7 -- 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/1476783 Title: Lenovo B5970 USB peripherals are not detected Status in linux package in Ubuntu: Incomplete Bug description: Randomly (around twice any 3 reboot), Linux does not detect the USB peripherals of the laptop. When everything is ok, lsusb: Bus 001 Device 002: ID 8087:8000 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 004: ID 0cf3:3004 Atheros Communications, Inc. Bus 002 Device 003: ID 0bda:579c Realtek Semiconductor Corp. Bus 002 Device 002: ID 1d57:32da Xenta 2.4GHz Receiver (Keyboard and Mouse) Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub When it fails: Bus 001 Device 002: ID 8087:8000 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub I will complete the report with dmesg, lspci -vnvn, lsusb -vv when it fails. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-57-generic 3.13.0-57.95 ProcVersionSignature: Ubuntu 3.13.0-57.95-generic 3.13.11-ckt21 Uname: Linux 3.13.0-57-generic i686 ApportVersion: 2.14.1-0ubuntu3.11 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: malaise 2738 F.... pulseaudio /dev/snd/controlC0: malaise 2738 F.... pulseaudio CurrentDesktop: XFCE Date: Tue Jul 21 20:08:23 2015 HibernationDevice: RESUME=UUID=004a57bf-beb5-45f9-9b2a-bccf3e83991e InstallationDate: Installed on 2015-06-24 (26 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2) MachineType: LENOVO 80EU ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-57-generic root=UUID=03a12f82-eda0-42a9-8bb7-0e07b73a894c ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-57-generic N/A linux-backports-modules-3.13.0-57-generic N/A linux-firmware 1.127.13 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/21/2014 dmi.bios.vendor: LENOVO dmi.bios.version: 9DCN29WW(V2.09) dmi.board.asset.tag: No Asset Tag dmi.board.name: Lenovo B50-70 dmi.board.vendor: LENOVO dmi.board.version: 31900058WIN dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo B50-70 dmi.modalias: dmi:bvnLENOVO:bvr9DCN29WW(V2.09):bd11/21/2014:svnLENOVO:pn80EU:pvrLenovoB50-70:rvnLENOVO:rnLenovoB50-70:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoB50-70: dmi.product.name: 80EU dmi.product.version: Lenovo B50-70 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1476783/+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
