Workaround bug in FreeBSD 6.0 and 6.1 that requires the fourth argument to mount(2) (the 'data' argument) to be non-NULL, even if the mounted filesystem does not use it for anything.  Previous versions of FreeBSD did not enforce this (useless) restriction, instead relying on the filesystem itself to sanity-check the argument if it used it.
Workaround bug in FreeBSD 6.0 and 6.1 that requires the fourth argument to
mount(2) (the 'data' argument) to be non-NULL, even if the mounted
filesystem does not use it for anything.  Previous versions of FreeBSD did
not enforce this (useless) restriction, instead relying on the filesystem
itself to sanity-check the argument if it used it.

kbyanc/dyntrace,kbyanc/dyntrace