[Bug] Kdump does not work when panic triggered due to MCE

Bouchard Louis louis.bouchard at canonical.com
Tue May 10 03:31:14 EDT 2011


Le 09/05/2011 17:46, Vivek Goyal a écrit :
> Louis, is this "crashdc" an independent executable. Where is it packaged?
> What is the significance of name "crashdc" (Crash data collecor ?) Will it
> make sense to merge it with makedumpfile which does kernel filtering
> already and this could be one of the additional features.
> Thanks
> Vivek

crashdc is hosted no SF.  You can have a look at it here :


Most of the work happens in /usr/bin/crashdc and the
run-crashdc-{distro}.sh scripts.

It does indeed means crash data collector.  It basically is a set of
shell script that send a set of predefined commands to the crash utility
and gather the result in a text file that can be easily sent over email.

In one implementation, it makes use of the KDUMP_POST mechanism to run.
Another way to use it is through an init script upon reboot.

As for merging it with makedumpfile, it could be an interesting choice. 
But that might add requirements to makedumpfile that you might not want
to have (dependencies on crash & the kernel-debuginfo packages which are

I have recently changed jobs, so I had to suspend my work on crashdc a
bit. I'm hoping to find time to work on it and adapt it to debian based
distro in the near future.

Kind regards,


Louis Bouchard
Server Support Analyst
Canonical Ltd
Ubuntu support: http://landscape.canonical.com

More information about the kexec mailing list