Kernel Crash Dumps

Ben Collins ben.collins at canonical.com
Wed Jun 25 13:57:32 BST 2008


As of the last kernel upload in intrepid, we now have the ability to
automatically capture crash dumps from kernel panics.

To enable this, you can install the linux-crashdump-generic meta
package. If you don't have universe in your repo, you will also need to
get the makedumpfile package.

Once you reboot, everything will be enabled. Any panic by the kernel
will reboot into the crashkernel, and save away the kernel core
to /var/crash/vmcore.

Right now, this requires a linux-image-debug-generic package (pulled in
by the crashdump meta package). However, with the next kernel upload,
this wont be needed (saves you from installing a 50Meg package).

Apport has a bug filed so that it will detect these vmcore's and handle
them appropriately by asking the user to file a bug with the vmcore
attached.


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