Kexec support for PS3 (ppc64)

Rajasekaran Periyasamy rajasekaran.periyasamy at
Thu Mar 6 06:25:04 EST 2008

I put a printk() in the early lines of early_parse_crashk() with
KERN_EMERG, but not able to see that on the boot screen. I think the
control is not transferred to early_parse_crashk() at all. With out this
"crashkernel" argument, the same kernel boots up properly. 

Please find the config file attached. 

Best regards,
Rajasekaran Periyasamy

> -----Original Message-----
> From: Mohan Kumar M [mailto:mohan at]
> Sent: Thursday, March 06, 2008 4:41 PM
> To: Rajasekaran Periyasamy
> Cc: kexec at
> Subject: Re: Kexec support for PS3 (ppc64)
> On Thu, Mar 06, 2008 at 04:28:32PM +0530, Rajasekaran Periyasamy
> > Hi All,
> > Is KEXEC fully support ppc64 platform?
> Hi Rajasekaran,
> Kexec/kdump is fully supported on PPC64 platform.
> >
> > I am working on Kdump for ppc64 (PS3) platform, running 2.6.23
> > built with KEXEC support. But when I try to boot kernel with
> > "crashkernel=128M at 32M", the kernel is not booting up.
> > I put some printk's in the function early_parse_crashk() (in
> > arch/powerpc/kernel/machine_kexec.c), but no output.
> Are you sure that kernel hangs in early_parse_crashk function? Can you
> attach .config file and dmesg output?
> Regards,
> Mohan.
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