Confirming the bug as well, having the same issue on one of my systems (not the other system, strangely).
[i] # pstack core.top.9743 core 'core.top.9743' of 9743: top 000000000040d480 hash_lookup_pidthr () + 40 0000000000411fa7 getptable () + 347 0000000000410f03 get_process_info () + 63 000000000040ec0e main () + 38e 000000000040872c ???????? () [/i] -- This message posted from opensolaris.org