(no debugging symbols found) Program received signal SIGSEGV, Segmentation fault. ---Type to continue, or q to quit--- 0x00209f69 in toupper_w () from /lib/libnss_wins.so.2 (gdb) bt #0 0x00209f69 in toupper_w () from /lib/libnss_wins.so.2 #1 0x0020548b in strupper_m () from /lib/libnss_wins.so.2 #2 0x0021233d in set_global_myname () from /lib/libnss_wins.so.2 #3 0x001b82bd in lp_load () from /lib/libnss_wins.so.2 #4 0x001ad05d in _nss_wins_gethostbyname_r () from /lib/libnss_wins.so.2 #5 0x008c6325 in gethostbyname_r@@GLIBC_2.1.2 () from /lib/i686/nosegneg/libc.so.6 #6 0x008c5c5f in gethostbyname () from /lib/i686/nosegneg/libc.so.6 #7 0x00a3f14b in main () from /bin/ping