> (gdb) bt
> #0 0x4013da02 in __libc_accept () from /lib/libc.so.6
> #1 0x80c34b9 in StreamConnection ()
> #2 0x80e07b1 in ConnCreate ()
> #3 0x80e0239 in ServerLoop ()
> #4 0x80dfdb3 in PostmasterMain ()
> #5 0x80c3fa5 in main ()
> #6 0x400a39cb in __libc_start_main (main=0x80c3ec0 <main>, argc=4,
Hmph. Waiting to accept a connection that's evidently not coming
through. Maybe that portscan did cause this.
I'd say go ahead and kill it, and after restarting try another portscan
to see if that really does cause the problem.
regards, tom lane