K 10
svn:author
V 8
jhibbits
K 8
svn:date
V 27
2014-09-14T22:03:41.565073Z
K 7
svn:log
V 301
Fix PowerPC backtraces.  Since kernel and user have completely separate address
spaces, rather than a split address, we actually can't check for being within
the kernel's address range.  Instead, do what other backtraces do, and use
trapexit()/asttrapexit() as the stack sentinel.

MFC after:	3 weeks

END