Public bug reported: /var/log/kern.log shows:
Aug 28 17:32:20 faire kernel: [37077.847109] EXT4-fs (sde1): warning: maximal mount count reached, running e2fsck is recommended Aug 28 17:32:20 faire kernel: [37077.848127] EXT4-fs (sde1): recovery complete Aug 28 17:32:20 faire kernel: [37077.848915] EXT4-fs (sde1): mounted filesystem with ordered data mode. Opts: (null) Aug 28 17:37:17 faire kernel: [37374.626258] EXT4-fs (sdd1): error count since last fsck: 8 Aug 28 17:37:17 faire kernel: [37374.626262] EXT4-fs (sdd1): initial error at time 1389635241: ext4_mb_generate_buddy:756 Aug 28 17:37:17 faire kernel: [37374.626264] EXT4-fs (sdd1): last error at time 1391881607: ext4_mb_generate_buddy:756 Aug 28 19:03:10 faire kernel: [ 0.000000] Initializing cgroup subsys cpuset Aug 28 19:03:10 faire kernel: [ 0.000000] Initializing cgroup subsys cpu Aug 28 19:03:10 faire kernel: [ 0.000000] Initializing cgroup subsys cpuacct Aug 28 19:03:10 faire kernel: [ 0.000000] Linux version 3.16.0-10-generic (buildd@aatxe) (gcc version 4.9.1 (Ubuntu/Linaro 4.9.1-8ubuntu1) ) #15-Ubuntu SMP Thu Aug 21 16:26:44 UTC 2014 (Ubuntu 3.16.0-10.15-generic 3.16.1) Aug 28 19:03:10 faire kernel: [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.16.0-10-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 Aug 28 19:03:10 faire kernel: [ 0.000000] KERNEL supported cpus: It seems that I have a USB stick which has errors. When I attempted to unmount it, my system froze and had to be alt-sysreq s-u-b'd. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-generic 3.16.0.10.11 ProcVersionSignature: Ubuntu 3.16.0-10.15-generic 3.16.1 Uname: Linux 3.16.0-10-generic x86_64 ApportVersion: 2.14.6-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: james 3770 F.... pulseaudio /dev/snd/controlC0: james 3770 F.... pulseaudio CurrentDesktop: Unity Date: Thu Aug 28 19:07:46 2014 HibernationDevice: RESUME=UUID=db600bbe-faca-41f4-9338-c3e8e227599a InstallationDate: Installed on 2014-04-11 (138 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140409) MachineType: LENOVO 20AQCTO1WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-10-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.16.0-10-generic N/A linux-backports-modules-3.16.0-10-generic N/A linux-firmware 1.132 SourcePackage: linux UpgradeStatus: Upgraded to utopic on 2014-05-08 (112 days ago) dmi.bios.date: 02/10/2014 dmi.bios.vendor: LENOVO dmi.bios.version: GJET71WW (2.21 ) dmi.board.asset.tag: Not Available dmi.board.name: 20AQCTO1WW dmi.board.vendor: LENOVO dmi.board.version: 0B98405 STD dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrGJET71WW(2.21):bd02/10/2014:svnLENOVO:pn20AQCTO1WW:pvrThinkPadT440s:rvnLENOVO:rn20AQCTO1WW:rvr0B98405STD:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20AQCTO1WW dmi.product.version: ThinkPad T440s dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug utopic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1362742 Title: kernel panic attempting to unmount device with errors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1362742/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs