(gdb) run
Starting program: /usr/bin/rhythmbox 
[Thread debugging using libthread_db enabled]
[New Thread -1224841536 (LWP 10048)]

(rhythmbox:10048): Rhythmbox-CRITICAL **: couldn't connect to session bus: Unable to determine the address of the message bus
[New Thread -1234437200 (LWP 10051)]
[New Thread -1242829904 (LWP 10052)]
[New Thread -1243546704 (LWP 10054)]
[New Thread -1251939408 (LWP 10056)]
[Thread -1251939408 (LWP 10056) exited]

Program received signal SIG33, Real-time event 33.
[Switching to Thread -1242829904 (LWP 10052)]
0xffffe410 in __kernel_vsyscall ()
(gdb)