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

From: Mikael Pettersson
Date: Sun Nov 04 2007 - 14:39:12 EST


On Sun, 04 Nov 2007 10:29:34 -0800, H. Peter Anvin wrote:
>Could you send me your /proc/cpuinfo?

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

>Also, I would be very interested if you could try out this patch:
...
>Urk, -ENOTAWAKEYET. Try *THIS* patch, please.

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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