apport information ** Attachment added: "BootDmesg.txt" https://bugs.launchpad.net/bugs/1505564/+attachment/4493191/+files/BootDmesg.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/1505564 Title: Soft lockup with "block nbdX: Attempted send on closed socket" spam Status in linux package in Ubuntu: Confirmed Bug description: Hi, Some of our nova compute hosts regularly freeze, sometimes for a few hours, with kern.log getting spammed with : block nbdX: Attempted send on closed socket and a few "CPU soft lockup" messages (see attached log). This clears up when the queue gets cleared, eg : block nbdX: queue cleared trusty hosts with kernel version 3.19.0-30-generic. Note that timestamps from kern.log appears to be wrong, it looks like the messages are being held, and then all delivered at once when the kernel unfreezes. Attaching apport files from 2 hosts below. --- AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Oct 9 13:14 seq crw-rw---- 1 root audio 116, 33 Oct 9 13:14 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.14.1-0ubuntu3.15 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 14.04 IwConfig: Error: [Errno 2] No such file or directory MachineType: HP ProLiant DL385 G7 Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=screen-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic root=UUID=1bd039df-c419-4cb7-b1ad-fe004d55ccd4 ro console=tty0 console=ttyS1,38400 nosplash ProcVersionSignature: Ubuntu 3.19.0-30.34~14.04.1-generic 3.19.8-ckt6 RelatedPackageVersions: linux-restricted-modules-3.19.0-30-generic N/A linux-backports-modules-3.19.0-30-generic N/A linux-firmware 1.127.15 RfKill: Error: [Errno 2] No such file or directory Tags: trusty uec-images Uname: Linux 3.19.0-30-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 12/08/2012 dmi.bios.vendor: HP dmi.bios.version: A18 dmi.chassis.type: 23 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrA18:bd12/08/2012:svnHP:pnProLiantDL385G7:pvr:cvnHP:ct23:cvr: dmi.product.name: ProLiant DL385 G7 dmi.sys.vendor: HP --- AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Oct 9 12:37 seq crw-rw---- 1 root audio 116, 33 Oct 9 12:37 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.14.1-0ubuntu3.15 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 14.04 IwConfig: Error: [Errno 2] No such file or directory MachineType: HP ProLiant DL360p Gen8 Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=screen-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic root=UUID=f3c6cae8-09dc-4607-8675-c9123ea9c9fd ro console=tty0 console=ttyS1,38400 nosplash ProcVersionSignature: Ubuntu 3.19.0-30.34~14.04.1-generic 3.19.8-ckt6 RelatedPackageVersions: linux-restricted-modules-3.19.0-30-generic N/A linux-backports-modules-3.19.0-30-generic N/A linux-firmware 1.127.15 RfKill: Error: [Errno 2] No such file or directory StagingDrivers: visorchannel visorutil Tags: trusty uec-images staging Uname: Linux 3.19.0-30-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 11/14/2013 dmi.bios.vendor: HP dmi.bios.version: P71 dmi.chassis.type: 23 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrP71:bd11/14/2013:svnHP:pnProLiantDL360pGen8:pvr:cvnHP:ct23:cvr: dmi.product.name: ProLiant DL360p Gen8 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1505564/+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
