Re: [PATCH 04/10] x86/fpu: Document reasoning of FX-only fallback

[Chang S. Bae]

On 6/15/2026 12:37 PM, Andrei Vagin wrote:
> This fallback is dangerous as it can trigger silent corruptions of
> user-space state by resetting extended registers if the process was
> using them but the frame metadata was malformed.
>
> XSAVE was introduced 15 years ago, we may need to consider removing this
> fallback entirely or introducing a sysctl to enable/disable it.

This reads more like a separate problem statement. I don't see any 
follow-up implementing either option here.

Without additional context, it isn't entirely clear to me why this 
should be in this changelog at least.

Thanks,
Chang