kexec problem on CentOS 5.3

Neil Horman nhorman at
Wed Aug 11 21:08:58 EDT 2010

On Wed, Aug 11, 2010 at 01:25:32PM -0700, Josh England wrote:
> I'm running CentOS 5.3 on x86_64 platform with kernel version
> 2.6.18-128.el5 and having issues running kexec.  I've got the kernel
> built with CONFIG_KEXEC and CONFIG_CRASH_DUMP, and I'm booting with
> crashkernel=64M at 16M, but anytime I try to load a kernel with kexec I get
> the following:
> Invalid memory segment (nil) - 0x309fff
> Did I miss something somewhere?  I will provide any additional
> information if needed.
ususally I see erors like that when you don't have sufficient memory reserved.
try bumping up your crashkernel allocation to 128M

> -JE
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