Fwd: Kexec support for PS3 (ppc64)

Mohan Kumar M mohan at in.ibm.com
Fri Mar 14 07:22:41 EDT 2008

On Fri, Mar 14, 2008 at 04:18:52AM -0700, Rajasekaran P wrote:
> Yes,I built this kernel with CRASH_DUMP and VMCORE file system  enabled.
> Moreover, I disabled SMP as well.
> My system kernel is (First kernel) is SMP enabled, does it matter?

It should not matter.

> I dont get any message from dump capture kernel.
> I trigger crash dump using :
> echo c > /proc/sysrq-trigger

While triggering the dump, don't you get any message, like sending IPI
to cpu?

> Initially capture kernel was loaded into 32MB only, but still it was not
> booting. So I tweaked the KDUMP_KERNELBASE macro to load capture kernel to
> 64MB ( My idea is, first 64MB for system kernel and second 64MB for capture
> kernel). Should it be 32MB only?

You can't do that. It should be at 32MB only.

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