Re: Math-emu kills the kernel on Athlon64 X2

[Krzysztof Halasa]

Sergio Monteiro Basto <sergio@xxxxxxxxxxxxxxxxxx> writes:
> I think, math emulation is for 486 and older. 486 DX2 was the first one
> who have math co processor, on earlier processor it should be disable .

Actually, 486 DX had built-in FPU as well. It was missing from 486SX
(486SX + optional 487 FPU = 486DX).

For 386(DX|SX) there were 387(DX|SX) (386SX used 16-bit bus).

Many 32-bit motherboards had a socket for Weitek (3167 for 386DX or 4167
for 486). I think I remember a board with 386DX and 287 socket as well.

486DX2 meant the external clock was half the internal.
-- 
Krzysztof Halasa
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/