Public bug reported:
On my system, several programs that create gigabyte sized files fail.
the process allocates around a gigabyte then goes into a state where no
more data is written to the disk, but the process consumes 100% of the
cpu.
this issue first lead to the reporting of bug #925309, where the process
was unkillable. The unkillable part seems to be fixed in the latest
kernel package 3.0.0-16-generic #29-Ubuntu, but the failure of the
programs that caused this is still present.
this problem is not only in qemu-kvm, creating disk images in VirtualBox
also triggers this problem, although i currently have the VirtualBox
packages installed instead of the Ubuntu VirtualBox packages.
Both of these applications work with no problem when writing to a non-
encrypted file system.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: qemu-kvm 0.14.1+noroms-0ubuntu6.2
ProcVersionSignature: Ubuntu 3.0.0-16.29-generic 3.0.20
Uname: Linux 3.0.0-16-generic i686
NonfreeKernelModules: wl
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Sun Mar 11 13:27:08 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/qemu-img
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1:
UID PID PPID C SZ RSS PSR STIME TTY TIME CMD
MachineType: LENOVO 2958
ProcEnviron:
SHELL=/bin/bash
PATH=(custom, user)
LANG=en_US.UTF-8
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-16-generic
root=UUID=a6551c5d-43b4-4962-b132-0ddf59cb55ac ro
crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
SourcePackage: qemu-kvm
UpgradeStatus: Upgraded to oneiric on 2012-01-14 (56 days ago)
dmi.bios.date: 05/05/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 18CN45WW(V2.54)
dmi.board.name: NITU1
dmi.board.vendor: LENOVO
dmi.board.version: REFERENCE
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnLENOVO:bvr18CN45WW(V2.54):bd05/05/2010:svnLENOVO:pn2958:pvrLenovoG550:rvnLENOVO:rnNITU1:rvrREFERENCE:cvnNoEnclosure:ct10:cvrN/A:
dmi.product.name: 2958
dmi.product.version: Lenovo G550
dmi.sys.vendor: LENOVO
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: apport-bug i386 oneiric running-unity
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https://bugs.launchpad.net/bugs/952489
Title:
process creating gigabyte files on encrypted filesystem fails with
100% cpu
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