How to enable CRASH/CORE DUMPS in your server (linux)

[ragnazorg]

So you're a dedicated server owner and your server crashed but it didn't save your core or crash dumps.

How to enable it?

Login with your root account.

Look for etc/security/limits.conf

make sure to un-comment this line.

#* soft core unlimited

Do remember # means its commented. Now if you want to remove the comment it should be

*			   soft	core			unlimited

Then restart your server.

Edited November 19, 2011 by ragnazorg

[Shinryo]

There are more steps involved to get core dumps that have detailed information about the crash reason.

First, eAthena has to be configured to enable debugging (e.g. for gdb):

./configure --enable-debug=gdb

If you don't want to edit the limits in the post above, but only for the current running shell, then use this:

ulimit -c unlimited

More about this here: http://compute.cnr.b...an-cgi?ulimit+2

You can run the server now.

Afterwards,you will have a file named 'core' (or something similiar) within your eAthena folder as soon as the server crashes. Use this to get detailed information:

gdb <server> <core>, e.g.
gdb map-server_sql core

You may have to install gdb first with 'apt-get install gdb', however, inside gdb enter this to get detailed information:

bt full

It will display a call stack where the last called function is at top. There's also a line displayed to show you where the crash happened. Go ahead and check this line to fix it.

Edited November 22, 2011 by Shinryo

[QQfoolsorellina]

Is it possible and how to enable coredumps on windows xp ?

[Petey Pablo]

Compile problem. See the image below