Re: Stops Pentiums dead (and how does Cyrix perform?)
Alain Knaff (knaff@tux.org)
Sun, 9 Nov 1997 10:05:28 +0100 (MET)
In linux, you wrote:
>On Sat, 8 Nov 1997, linux kernel account wrote:
>
>>
>> The guy running x86.org doesnt want anything to do with this bug... I've
>> already emaild him.. and it's "for personal reasons".. So please dont
>> flood him..
>
>[SNIPPED]
>
>I'm talking to x86.org. They are advocates and are providing technical
>assistance. Don't bug them. They know about the problem.
>
>We may be able to set Pentiums to trap on the lock prefix when in
>user-mode. User mode code doesn't (shouldn't) use this instruction.
>This should fix the problem. I have already grepped through the latest
>gcc c-library and none of that code seems to require the lock prefix.
What about thread libraries? Wouldn't these need the lock prefix to
ensure atomic operation?
Regards,
Alain