K 10
svn:author
V 8
vangyzen
K 8
svn:date
V 27
2020-06-12T21:17:56.048977Z
K 7
svn:log
V 661
FPU init: allocate initial state from UMA to ensure alignment

The Intel Instruction Set Reference says this about the XSAVE instruction:

    Use of a destination operand not aligned to 64-byte boundary
    (in either 64-bit or 32-bit modes) results in a general-protection
    (#GP) exception.

This alignment happens naturally when all malloc buckets are powers
of two.  However, this change is necessary on some systems when
certain non-power-of-two (and non-multiple of 64) malloc buckets
are defined.

Reviewed by:	cem; kib; earlier version by jhb
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D25098

END