Process immune to SIGKILL

[SeanTater]

I used mogrify to scale a bunch of images on an SD card. The command I used was:

mogrify -monitor -scale 800 <VERY long file list>

"ps aux | grep mogrify" reports:
sean 25292 59.0 0.0 17684 1328 ? R Feb06 5954:27 mogrify -monitor -scale 800 <VERY long file list>

Neither of the following has any effect, with or without root privileges
kill -9 25292
killall -KILL mogrify

It uses 99% (system) of the CPU consistently.
I tried using "strace" on it, but strace produces no output and can subsequently be killed only by SIGKILL.

Ubuntu Version:
Description: Ubuntu 8.04.1
Release: 8.04

I assume I forgot to unmount the SD card, but I expected the process to be killed anyway, which it was not.

[Dave Gilbert (ubuntu-treblig)]

If -9 doesn't kill a process it isn't the fault of the process but the kernel - and is normally when it's waiting for an IO request.

[Jeremy Foshee (jeremyfoshee)]

Hi SeanTater,

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/lucid.

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 329217

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.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]