>Synopsis: lockf deadlock detection is broken after vmlocking
>Arrival-Date: Wed Apr 02 05:20:01 +0000 2008
>Originator: YAMAMOTO Takashi <yamt@xxxxxxxxxxxxxxxxx>
>Release: NetBSD 4.99.58
the change to convert vfs_lockf.c to use condvars broke
lockf deadlock detection.
lf_setlock (ab)uses l_wmesg/l_wchan to follow the lock graph.
however, they are no longer updated as it expects.