Hi, I am running gdb 5.0.14 version( which comes with suse 7.1 cd) on SUSE 7.1 for PPC. When I try to debug a multi-threaded program as below, GDB gives a segmentation violation fault. The program runs fine outside the debugger and the problem seems to be related to gdb and threads. *************************************************************************************************************************************** sree@prep:~ > gdb a.out GNU gdb 5.0 Copyright 2000 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 "ppc-suse-linux"...(no debugging symbols found)... (gdb) run Starting program: /home/sree/a.out (no debugging symbols found)...[New Thread 1024 (LWP 470)] Segmentation fault ***************************************************************************************************************************************** Has anybody come across a similar problem. Please suggest. regards, Sreelatha