K 10
svn:author
V 3
avg
K 8
svn:date
V 27
2016-04-12T06:46:54.446108Z
K 7
svn:log
V 412
[amd64] dtrace_invop handler is to be called only for kernel exceptions

DTrace-related exceptions in userland code are handled elsewhere.
One practical problem was a crash in dtrace_invop_start() when saved
%rsp pointed to a virtual address that was not backed.

i386 code already ignored userland exceptions.

Reviewed by: markj, kib
MFC after:	2 weeks
Differential Revision: https://reviews.freebsd.org/D5906

END