When running top interactively, I can see various word in the state column :
nanslp, biord, select, uwait, lockf, pause, kqread, piperd, sbwait ...
Some like nanslp or kqread are self explanatory, others are not.
Tried man pages :
STATE is the current
state (one of "START", "RUN" (shown as "CPUn" on SMP systems), "SLEEP",
"STOP", "ZOMB", "WAIT", "LOCK" or the event on which the process
waits), C is the processor number on which the process is executing
(visible only on SMP systems)
Tried search engines :
stack overflow
mailing lists archives
Where may I get a complete list of possible process state under FreeBSD 9, and their meanings?