$ gdb pcmanfm
GNU gdb (GDB) Fedora (7.4.50.20120120-50.fc17)
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/pcmanfm...done.
(gdb) run
Starting program: /usr/bin/pcmanfm
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/libthread_db.so.1".
[New Thread 0xb23f4b40 (LWP 14004)]
[New Thread 0xb19ffb40 (LWP 14005)]
[Thread 0xb19ffb40 (LWP 14005) exited]
[New Thread 0xb19ffb40 (LWP 14006)]
[New Thread 0xb0fffb40 (LWP 14007)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb0fffb40 (LWP 14007)]
0x081dafb0 in ?? ()
Missing separate debuginfos, use: debuginfo-install gamin-0.1.10-12.fc17.i686 libexif-0.6.20-2.fc17.i686
(gdb) bt
#0  0x081dafb0 in ?? ()
#1  0xb72673ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133