11 Nov
2006
11 Nov
'06
12:32 p.m.
Ray Arachelian wrote:
A few years later, we had fun with the F00FC7C8 opcode
on the Pentiums.
Ah yes, the infamous F00F bug, from the people who brought you the even more
infamous FDIV bug. Officially described as an "illegal form of the CMPXCHG8B
instruction with the LOCK prefix". Also known as 'How to crash any Pentium
series chip without the messy business of having to steal ring-zero access
first'. Lovely.
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