system freezes, tsc unstable

[ferrazrafael]

Im using ubuntu 9.04, uptodate, but sometimes the system just freezes, It hapens in fedora 11 too. I dont know why, but the only wierd thing that I found in the logs is the tsc unstable message. I could boot with notsc parameter and the lockup still.

my /sys/devices/system/clocksource/clocksource0/current is acpi_pm, changin to jiffies or tsc dont solve the problem. There is no other timer available.

puting the notsc option in the grub/menu.lst, stoped the messages but the lockups still there.

What the seams to syncronize with the lockups, is when I change the energy source, using battery or not. Sometimes, just freezes.

I think that this could be a problem with cpu frequency scaling.

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
HibernationDevice: RESUME=UUID=4ac46486-e789-4a7f-999d-d06e2db9c2be
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 003 Device 002: ID 046d:c510 Logitech, Inc. Cordless Mouse
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Hewlett-Packard Pavilion dv5000 (EZ539UA#ABL)
Package: linux-image-2.6.28-15-generic 2.6.28-15.52
ProcCmdLine: root=UUID=55abce72-4205-4a59-9c80-9d0ed958bb6d ro locale=pt_BR quiet splash
ProcEnviron:
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-15.52-generic
SourcePackage: linux

[ferrazrafael (ferrazrafael)]

I think this could be a kernel problem. because I upgraded to ubuntu 9.10 and the problem is gone.

thanks guys

[Jeremy Foshee (jeremyfoshee)]

Hi ferrazrafael,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 452207

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

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[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

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