linux-kernel - Re: x86.git kexec rhel 5.1

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Message-ID: <86802c440801171948o152fc82eh6756926ead6882e7@mail.gmail.com>
Date:	Thu, 17 Jan 2008 19:48:25 -0800
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: x86.git kexec rhel 5.1

On Jan 17, 2008 7:11 PM, Yinghai Lu <yhlu.kernel@...il.com> wrote:
> some problem with PAT
>
> A: 1/17 x86.git with PAT enable kernel
> B. 1/17 x86.git with PAT diabled kernel
> C: RHEL 5.1 stock kernel -53
>
> A kexec B : OK
> B kexec A:  OK
> A kexec C: very slow
> B kexec C:  OK
> C kexec A:  OK
> C kexec B:  OK
>
> Do we need something to disable PAT when kexec calling shutdown?

change PAT only, fix that A kexec C problem.

YH
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