Hi, i work on a multithreaded application(linux mandrake 8.0, kernel:2.4.10) which sometimes freezes. when i look with 'gdb', i see the following: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 4101 (LWP 2113)] 0x402a5ebc in memcpy () from /lib/libc.so.6 (gdb) info locals No symbol table info available. i think, this does not say much. i dont even know during which funtion, this signal is taken. what should i look for? and also does this message make sure that, signal is caught during a memcpy operation? thanks in advance, best regards. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/