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SubjectRe: Dealing with the NMI mess
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On 31/07/2015 12:25, Borislav Petkov wrote:
>> > The reason why it isn't documented is probably hidden within Intel.
>> > Besides ICEBP, which is a bit fringe, there's no reason not to document
>> > SALC which Thomas mentioned. SALC all has been there since the 8086,
>> > and has been undocumented for thirty-odd years.
> That one is invalid (on an IVB):
>
> [ 1306.231408] traps: icebp[3783] trap invalid opcode ip:4004b0 sp:7fffffffe610 error:0 in icebp[400000+1000]
>
> AMD APM documents it as invalid too.

It's valid in 32-bit.

Paolo


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