Memory for crashkernel notwithin permissible range

zubeen · 03-18-2010, 01:58 AM

I've installed LINUX for the very first time and when i rebooted it, i found this message on my screen "Memory for crashkernel notwithin permissible range"

I tried all my attempt like given memory to kernel with this command
"crashkernel=64M@16M" but no luck...

Finally i tried to boot into single user mode might be it helped me..but same results

Can anyone pls suggest me where exactly i'm lacking?

GrapefruiTgirl · 03-18-2010, 02:08 AM

Quote:

During the boot process you may see the message "Memory for crash kernel (0x0 to 0x0) notwithin permissible range"
appear. This message comes from the new kdump infrastructure. It is a harmless message and can be safely ignored.

The above comes from here:
http://wiki.centos.org/Manuals/Relea...efc2bde261b0a6
in the section called "Known Issues". I found that on the top of the first page returned by Google, when I searched for the Error Message you gave.

You may like to (and probably should) read all of that page, and this one too:
http://www.centos.org/modules/newbb/...topic_id=11736
if you are using CentOS (or perhaps RHEL/RedHat too)

NOTE: You did not tell us what Linux distro you are running, so I took a wild guess, after using Google, that you are running CentOS. If this is wrong, please tell us what linux you are using.

zubeen · 03-18-2010, 07:21 AM

Thank you for your quick response!
I'm using Red Hat Distro. How can i avoid this error?
Whenever I'm rebooting my system i got this error and everything stops here.
I searched in your mentioned links but not found any thing beneficial.
Pls suggest!

GrapefruiTgirl · 03-18-2010, 11:12 AM

Repairing that on CentOS should be comparable to fixing it on RH. There's very nice instructional page here:
http://www.mjmwired.net/kernel/Documentation/kdump/

If you don't want to (or don't care to) configure it to work properly, it seems the next solution is to install a different kernel which does not have kdump enabled.

I don't use this kdump/kexec stuff myself, so that's the best I can provide -- you'll have to read and understand those instructions, and apply that information & knowledge to your system.

Sasha