GNU gdb 6.5 Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i686-pc-linux-gnu"...(no debugging symbols found) Using host libthread_db library "/lib/libthread_db.so.1". (gdb) run Starting program: /usr/bin/liferea Failed to read a valid object file image from memory. (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) [Thread debugging using libthread_db enabled] [New Thread -1209174336 (LWP 22180)] [New Thread -1209832560 (LWP 22183)] [New Thread -1218225264 (LWP 22184)] [New Thread -1244492912 (LWP 22188)] [New Thread -1268847728 (LWP 22189)] [New Thread -1277240432 (LWP 22190)] [New Thread -1285633136 (LWP 22191)] [New Thread -1294025840 (LWP 22192)] [New Thread -1302418544 (LWP 22193)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1209174336 (LWP 22180)] 0x4d3838d0 in pthread_mutex_lock () from /lib/libpthread.so.0 (gdb) bt #0 0x4d3838d0 in pthread_mutex_lock () from /lib/libpthread.so.0 #1 0x000056a4 in ?? () (gdb)