Re: [PATCH] x86/kerrnel/FPU: clear MP bit of cr0

[Dave Hansen]

On 5/26/25 01:22, Khalid Ali wrote:
> Clear MP bit when initializing x87 FPU, since what it does
> is making WAIT/FWAIT instructions to react to setting of TS flag.
> Right now TS bit is cleared so MP should be cleared, as it is not
> needed. This should set the bit in defined state.

Hi Khalid,

What is the user visible result of this change?

Could you also give us a little more background about how you came upon
this problem? Was a program misbehaving and you narrowed it down to
this? Did you find it by inspection?