K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2008-12-05T21:17:54.003257Z
K 7
svn:log
V 354
Unconditionally use locked addition of zero to tip of the stack for
memory barriers on i386. It works as a serialization instruction on
all IA32 CPUs.

Alternative solution of using {s,l,}fence requires run-time checking
of the presense of the corresponding SSE or SSE2 extensions, and
possible boot-time patching of the kernel text.

Suggested by:	many

END