Waiting on "allproc" w/ with non-sleepable locks held

Hi,

yet another funky console message with today's -current:

Waiting on "allproc" with the following non-sleepablelocks held:
exclusive sleep mutex callout_dont_sleep r = 0 (0xc0371fa0) locked _at_ 
/usr/src/sys/kern/kern_timeout.c:223

Got this twice in a row; system didn't enter ddb so I got no trace.

Lars
-- 
Lars Eggert <larse_at_isi.edu>           USC Information Sciences Institute