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Re: [PATCH] fix i486 boot failure due to stale %ds

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From: Mikael Pettersson <mikpe@...>
To: <hpa@...>, <mikpe@...>
Cc: <linux-kernel@...>, <mingo@...>, <tglx@...>
Subject: Re: [PATCH] fix i486 boot failure due to stale %ds
Date: Sunday, November 4, 2007 - 3:38 pm

On Sun, 04 Nov 2007 10:29:34 -0800, H. Peter Anvin wrote:

Sure. It's a 100Mhz Intel 486 DX4:

processor	: 0
vendor_id	: GenuineIntel
cpu family	: 4
model		: 8
model name	: 486 DX/4
stepping	: 0
cache size	: 0 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme
bogomips	: 49.66
clflush size	: 32

...

First patch didn't build. Second patch builds and boots Ok.

So this means the 486 DX4 has a buggy mov to %cr0?

/Mikael
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Messages in current thread:
Re: [PATCH] fix i486 boot failure due to stale %ds, Mikael Pettersson, (Sun Nov 4, 3:38 pm)
Re: [PATCH] fix i486 boot failure due to stale %ds, H. Peter Anvin, (Sun Nov 4, 3:41 pm)