Comment 0 for bug 556919

Happening sInce some time after beta1 (I stopped running KVM for a while after the beta1 tests were done). Running kvm (via testdrive) against the ISOs.

Almost always my laptop will hard-freeze. The screen is still painted under X, but no keys work. I cannot shift to a vTerm, and cannot use the magic keys to release from X. SSHing from another system fails (no route/response to/from host). Already established SSH sessions will not respond.

All in all, it really sounds like a back kernel panic. The only option is to cycle power, wait for fsck to finish, and start again.

On the few times I do not get a hard-freeze, a running KVM will suddenly display on the terminal header "QEMU stopped". After that, ending this KVM run and starting a new one will have KVM unable to recognise the guest vdisk (just-created/formatted). Rebooting returns KVM to work -- until the hard-freeze.

This has happened today about 20 times. I have been unable to find anything in the logs pointing to an error, so far. Will now boot the -16 and -18 kernels to see if it is reproducible there; will also try a vanilla kernel.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-19-generic 2.6.32-19.28
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic x86_64
AlsaVersion:
 Advanced Linux Sound Architecture Driver Version 1.0.22.1.
 Compiled on Apr 1 2010 for kernel 2.6.32-19-generic (SMP).
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: cerdea 3476 F.... pulseaudio
 /dev/snd/controlC0: cerdea 3476 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xfebfc000 irq 16'
   Mixer name : 'SigmaTel STAC9205'
   Components : 'HDA:838476a0,102801fd,00100204 HDA:14f12c06,14f1000f,00100000'
   Controls : 19
   Simple ctrls : 11
Card1.Amixer.info:
 Card hw:1 'Pro'/'Creative Labs VF0400 Live! Cam Notebook Pro at usb-0000:00:13.4-1, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB041e:4061'
   Controls : 0
   Simple ctrls : 0
Card1.Amixer.values:

CheckboxSubmission: 23f39d583e289591efa3692115f3f5f2
CheckboxSystem: d00f84de8a555815fa1c4660280da308
Date: Tue Apr 6 18:06:40 2010
EcryptfsInUse: Yes
Frequency: Once a day.
HibernationDevice: RESUME=UUID=4212d0ae-0265-44ed-ac84-7b7cd5669fe4
MachineType: Dell Inc. Inspiron 1721
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-19-generic root=/dev/mapper/sys-root ro crashkernel=384M-2G:64M,2G-:128M console=tty1 security=apparmor vbe_mode=0x176
ProcEnviron:
 LC_TIME=en_DK.utf8
 PATH=(custom, no user)
 LANG=en_US.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.33
SourcePackage: linux
dmi.bios.date: 04/21/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0RT951
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd04/21/2008:svnDellInc.:pnInspiron1721:pvr:rvnDellInc.:rn0RT951:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Inspiron 1721
dmi.sys.vendor: Dell Inc.