linux-kernel - Re: Linux kernel crash dumps for ARM

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Message-ID: <20100105190047.GD30868@flint.arm.linux.org.uk>
Date:	Tue, 5 Jan 2010 19:00:47 +0000
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	Simon Horman <horms@...ge.net.au>
Cc:	Paul Mundt <lethal@...ux-sh.org>,
	Venkappa Mala <Venkappa.Mala@...infotech.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org,
	Kexec Mailing List <kexec@...ts.infradead.org>
Subject: Re: Linux kernel crash dumps for ARM

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.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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