BUG: soft lockup - CPU#0 stuck for 94s! [watchdog/0:5]

[Muflone]

Binary package hint: transmission

I was running ubuntu karmic i386 guest inside a VMWare VM with a Ubuntu Jaunty amd64 host.

In the host system I tried to download a .torrent filename using Transmission 1.70 then the disk started to word really intensively, the whole machine seemed freezed.
It took at least 2 minutes to let me access from the VT-1 and over 5 minutes to stop the intense disk activity, which when ended the whole system resumed the normal activity.

On the guest OS I've found such report.

ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: AudioPCI [Ensoniq AudioPCI], device 0: ES1371/1 [ES1371 DAC2/ADC]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 3037 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'AudioPCI'/'Ensoniq AudioPCI ENS1371 at 0x2080, irq 19'
   Mixer name : 'Cirrus Logic CS4297A rev 3'
   Components : 'AC97a:43525913'
   Controls : 24
   Simple ctrls : 13
Date: Sun Dec 20 10:23:11 2009
DistroRelease: Ubuntu 9.10
Failure: oops
HibernationDevice: RESUME=UUID=d26b096a-b316-4682-bc20-6fdf89597efd
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: VMware, Inc. VMware Virtual Platform
Package: linux-image-2.6.31-14-generic 2.6.31-14.48
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-14-generic root=UUID=7a4c54bf-9975-4e0d-bb5b-4a3bf392758c ro quiet splash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-14-generic N/A
 linux-firmware 1.24
RfKill:

SourcePackage: linux
Tags: kernel-oops
Title: BUG: soft lockup - CPU#0 stuck for 94s! [watchdog/0:5]
Uname: Linux 2.6.31-14-generic i686
dmi.bios.date: 08/15/2008
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.name: 440BX Desktop Reference Platform
dmi.board.vendor: Intel Corporation
dmi.board.version: None
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd08/15/2008:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
dmi.product.name: VMware Virtual Platform
dmi.product.version: None
dmi.sys.vendor: VMware, Inc.

[Charles Kerr (charlesk)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Does this problem persist in Transmission version 1.75? I don't think that 1.70 shipped with any Ubuntu release.

[Muflone (il-muflone)]

thank you charles for answering me
indeed you're right, transmission 1.70 came from the getdeb repository, I didn't noticed before.

I'm actually using Jaunty so the latest available version was 1.51-0ubuntu3.

Nevertheless this bug should be considered invalid because I'm still experiencing various soft lockup during intense disk activity even while Transmission's not running. I think they're caused from the 2.6.30 kernel from proposed jaunty repository.

[Muflone (il-muflone)]

The defect happens with heavy disk activity even with Transmission closed.
Please see comment #3