K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2014-10-04T18:38:14.307847Z
K 7
svn:log
V 322
Add kernel option KSTACK_USAGE_PROF to sample the stack depth on
interrupts and report the largest value seen as sysctl
debug.max_kstack_used.  Useful to estimate how close the kernel stack
size is to overflow.

In collaboration with:	Larry Baird <lab@gta.com>
Sponsored by:	The FreeBSD Foundation (kib)
MFC after:	1 week

END