Something

mdb core.18836
Loading modules: [ libc.so.1 libuutil.so.1 ld.so.1 ]
> ::stack
libc.so.1`__lwp_wait+7(2, 8046e70)
libc.so.1`_thrp_join+0x5a(2, 0, 8046ec0, 1)
libc.so.1`thr_join+0x20(2, 0, 8046ec0)
ContinueInNewThread+0x4f(8052260, 50000, 0, 8047768, 8047720)
main+0xaa1(0, 806b3d4, 804781c)
_start+0x7a(c, 80478f8, 8047911, 8047919, 804792f, 8047937)
>