apport information ** Attachment added: "UdevDb.txt" https://bugs.launchpad.net/bugs/1651435/+attachment/4799043/+files/UdevDb.txt
-- 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/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Confirmed Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw----+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw----+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware 1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory Card0.Amixer.values: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2013-08-21 (1229 days ago) InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1) IwConfig: em1 no wireless extensions. lo no wireless extensions. Lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Package: linux (not installed) ProcEnviron: TERM=screen.xterm-256color PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-57-generic root=UUID=16120d81-8cde-4e81-87cd-f55f65a4923b ro rootflags=subvol=@ pcie_aspm=force "acpi_osi=!Windows 2012" acpi=force acpi_enforce_resources=lax i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 i915.semaphores=1 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 RelatedPackageVersions: linux-restricted-modules-4.4.0-57-generic N/A linux-backports-modules-4.4.0-57-generic N/A linux-firmware 1.157.6 RfKill: Error: [Errno 2] No such file or directory Tags: xenial Uname: Linux 4.4.0-57-generic x86_64 UpgradeStatus: Upgraded to xenial on 2016-10-24 (69 days ago) UserGroups: _MarkForUpload: True dmi.bios.date: 03/13/2014 dmi.bios.vendor: Intel Corp. dmi.bios.version: SWQ6710H.86A.0067.2014.0313.1347 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: DQ67OW dmi.board.vendor: Intel Corporation dmi.board.version: AAG12528-309 dmi.chassis.type: 3 dmi.modalias: dmi:bvnIntelCorp.:bvrSWQ6710H.86A.0067.2014.0313.1347:bd03/13/2014:svn:pn:pvr:rvnIntelCorporation:rnDQ67OW:rvrAAG12528-309:cvn:ct3:cvr: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651435/+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
