linux-kernel - Re: Regression: boot failure on AMD Elan TS-5500

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Message-Id: <200806162327.34912.rusty@rustcorp.com.au>
Date:	Mon, 16 Jun 2008 23:27:34 +1000
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Sean Young <sean@...s.org>
Cc:	linux-kernel@...r.kernel.org,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	"H. Anvin" <hpa@...or.com>
Subject: Re: Regression: boot failure on AMD Elan TS-5500

On Monday 16 June 2008 22:11:39 Sean Young wrote:
> The symptons are either a crash or reboot on booting the kernel. No
> printk's have occurred yet -- even with early printk on.
>
> 2.6.15 worked on this board however current does not. I've bisected it to:
>
> 	commit a24e785111a32ccb7cebafd24b1b1cb474ea8e5d
> 	Author: Rusty Russell <rusty@...tcorp.com.au>
> 	Date:   Sun Oct 21 16:41:35 2007 -0700
>
> 	    i386: paravirt boot sequence

Hi Sean,

   Thanks for tracking this down.  Can we try reverting this in pieces to see 
exactly what the cause was?

1) Revert arch/x86/boot/compressed/head_32.S
2) If that doesn't fix it, Try removing the 8 lines which were added to 
arch/x86/kernel/head_32.S

I assume this is CONFIG_PARAVIRT=n?

Thanks,
Rusty.
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