[Bug 279901] glibc-2.39-2 and above on the host segfault

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=279901

--- Comment #30 from Konstantin Belousov <kib@FreeBSD.org> ---
I do believe that the problem is specific to AMD.  The AMD hw virtualization
assist (SVM) is completely different from the Intel facility (VMX), and perhaps
there is a bug in bhyve.

What is not clear to me, is it a bug to look for in bhyve, or some hw quirk
in the reported CPU models.

As a first step, could somebody extract the code that is used for broken
configuration?  I suspect that it is actually ERMS(or FRMS) + AVX2 and not
just ERMS memcpy().

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