Core dump problem

---------- Forwarded message ----------
From: Julien Groselle <julien.groselle@gmail.com>
Date: 2012/10/5
Subject: Re: Core dump problem
To: "Karl E. Jorgensen" <karl.jorgensen@nice.com>

Hi,

Thanks for the quick answer !

And no, I really want core dumped my kernel.

In fact, if I have a Kernel Panic, i want have the last breath of my server...

To analyse why...

---

2012/10/5 Karl E. Jorgensen <karl.jorgensen@nice.com>

Hi

On Fri, Oct 05, 2012 at 03:18:54PM +0100, Julien Groselle wrote:
> Hello Debian users,
>
> I want enable core dump on a debian squeeze server.
> So I have downloaded the source code of kernel (2.6.32) and i have activate
> this options :
>
> CONFIG_PROC_VMCORE=y
>
> CONFIG_KEXEC=y
>
> CONFIG_CRASH_DUMP=y
>
> CONFIG_KEXEC_JUMP=y
>
>
> Compilation was successful, but i can't use core dump because the file /proc/
> vmcore doesn't exist...
>
> But it seems to be essential to do the trick.
>
>
> Could someone can help me to have core dump active on my server ?

Do you actually want a core dump of the kernel? Not a userland process?

If you are after coredumps of userland processes, check out ulimit (a shell built-in) - e.g.

$ ulimit -c unlimited
$ crashing-program [ args ] ...
$ ls -l core

Hope this helps

--
Karl E. Jorgensen

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