Re: Linux kernel crash dumps for ARM

From: Simon Horman
Date: Tue Jan 05 2010 - 17:02:23 EST


On Tue, Jan 05, 2010 at 07:00:47PM +0000, Russell King wrote:
> On Tue, Jan 05, 2010 at 08:16:28PM +1100, Simon Horman wrote:
> > To add to this, my understanding is that kexec support varies across
> > different ARM platforms - that is to say, it works on some and fails on
> > others. While this seems to be slowly improving, I'm also aware of any list
> > of what is supported and what isn't.
>
> I'm unaware of that; the only area of weakness with kexec that I'm
> aware of is when the ARMv7 processor support didn't implement the
> necessary code to bring the caches/mmu/tlbs into a safe state for
> software-reboot, which is also what's required by kexec.

Ok, I could well be mistaken and its just ARMv7 that has a few issues
at this time.

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