Reducing the size of kexec util

Lombard, David N dnlombar at
Wed May 7 13:58:29 EDT 2008

On Wed, May 07, 2008 at 01:28:36PM -0400, Neil Horman wrote:
> On Wed, May 07, 2008 at 10:11:30AM -0700, Lombard, David N wrote:
> > The current (20080324) kexec binary on x86 is 135KiB.  While not a
> > problem on a normal distro or runtime environment, it's a chubster
> > in an embedded role.
> > 
> > Has any thought been given to reducing its 'on-disk' footprint?
> > The rather obvious, non-default build-time options to only support
> > specific kernel types and capabilities, jumps to mind.
> > 
> > Beyond build-time options, a Busybox applet would further minimize
> > size, but maintenance would be painful...
> > 
> Busybox is precisely what I use to implement kdump in RHEL at the moment.  Its
> still a bit bloated, since it is meant for enterprise servers, but it makes it
> very easy to customize very small initramfs files for specific purposes.

Hmmm... Don't see a kexec or kdump in busybox-1.10.1.  Is this in git?

What did you do to reduce binary size?  I don't really care about process
size, as I'm not working with memory-constrained systems.

David N. Lombard, Intel, Irvine, CA
I do not speak for Intel Corporation; all comments are strictly my own.

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