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Message #49680
[Bug 1292400] Re: task systemd-udevd:1906 blocked for more than 120 seconds.
It is not clear that udev is implicated here, the first instance seems
to be:
[ 240.608612] INFO: task kworker/0:2:861 blocked for more than 120 seconds.
[ 240.608617] Not tainted 3.13.0-17-generic #37-Ubuntu
[ 240.608618] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 240.608620] kworker/0:2 D ffff88001e414440 0 861 2 0x00000000
[ 240.608628] Workqueue: events hot_add_req [hv_balloon]
This implies a memory balloon event is occuring. Udev is likely a
victim of whatever locks are held by that.
--
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https://bugs.launchpad.net/bugs/1292400
Title:
task systemd-udevd:1906 blocked for more than 120 seconds.
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
System log shows repeated incidents of "task systemd-udevd:1906
blocked for more than 120 seconds."
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-17-generic 3.13.0-17.37 [modified: boot/vmlinuz-3.13.0-17-generic]
ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
Uname: Linux 3.13.0-17-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDesktop: XFCE
Date: Fri Mar 14 08:54:36 2014
HibernationDevice: RESUME=UUID=0d223c65-8c7e-41b4-95b3-05b22ff4679b
InstallationDate: Installed on 2014-03-12 (1 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140312)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
MachineType: Microsoft Corporation Virtual Machine
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-17-generic.efi.signed root=UUID=61b52c1b-300d-4c30-8966-db1745f4a4bc ro video:hyperv_fb=1920x1080 quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-17-generic N/A
linux-backports-modules-3.13.0-17-generic N/A
linux-firmware 1.126
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/26/2012
dmi.bios.vendor: Microsoft Corporation
dmi.bios.version: Hyper-V UEFI Release v1.0
dmi.board.asset.tag: None
dmi.board.name: Virtual Machine
dmi.board.vendor: Microsoft Corporation
dmi.board.version: Hyper-V UEFI Release v1.0
dmi.chassis.asset.tag: 6485-6574-9248-6162-4701-6267-50
dmi.chassis.type: 3
dmi.chassis.vendor: Microsoft Corporation
dmi.chassis.version: Hyper-V UEFI Release v1.0
dmi.modalias: dmi:bvnMicrosoftCorporation:bvrHyper-VUEFIReleasev1.0:bd11/26/2012:svnMicrosoftCorporation:pnVirtualMachine:pvrHyper-VUEFIReleasev1.0:rvnMicrosoftCorporation:rnVirtualMachine:rvrHyper-VUEFIReleasev1.0:cvnMicrosoftCorporation:ct3:cvrHyper-VUEFIReleasev1.0:
dmi.product.name: Virtual Machine
dmi.product.version: Hyper-V UEFI Release v1.0
dmi.sys.vendor: Microsoft Corporation
---
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDesktop: XFCE
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=0d223c65-8c7e-41b4-95b3-05b22ff4679b
InstallationDate: Installed on 2014-03-12 (1 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140312)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
MachineType: Microsoft Corporation Virtual Machine
Package: linux (not installed)
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-17-generic.efi.signed root=UUID=61b52c1b-300d-4c30-8966-db1745f4a4bc ro video:hyperv_fb=1920x1080 quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
RelatedPackageVersions:
linux-restricted-modules-3.13.0-17-generic N/A
linux-backports-modules-3.13.0-17-generic N/A
linux-firmware 1.126
RfKill:
Tags: trusty
Uname: Linux 3.13.0-17-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 11/26/2012
dmi.bios.vendor: Microsoft Corporation
dmi.bios.version: Hyper-V UEFI Release v1.0
dmi.board.asset.tag: None
dmi.board.name: Virtual Machine
dmi.board.vendor: Microsoft Corporation
dmi.board.version: Hyper-V UEFI Release v1.0
dmi.chassis.asset.tag: 6485-6574-9248-6162-4701-6267-50
dmi.chassis.type: 3
dmi.chassis.vendor: Microsoft Corporation
dmi.chassis.version: Hyper-V UEFI Release v1.0
dmi.modalias: dmi:bvnMicrosoftCorporation:bvrHyper-VUEFIReleasev1.0:bd11/26/2012:svnMicrosoftCorporation:pnVirtualMachine:pvrHyper-VUEFIReleasev1.0:rvnMicrosoftCorporation:rnVirtualMachine:rvrHyper-VUEFIReleasev1.0:cvnMicrosoftCorporation:ct3:cvrHyper-VUEFIReleasev1.0:
dmi.product.name: Virtual Machine
dmi.product.version: Hyper-V UEFI Release v1.0
dmi.sys.vendor: Microsoft Corporation
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