[root@wall sipregister]# gdb /usr/sbin/asterisk /tmp/core.3104 GNU gdb Red Hat Linux (6.3.0.0-1.21rh) Copyright 2004 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 "i386-redhat-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1". Reading symbols from shared object read from target memory...done. Loaded system supplied DSO at 0x46f000 Core was generated by `/usr/sbin/asterisk -U asterisk -G asterisk -vvvg -c'. Program terminated with signal 11, Segmentation fault. warning: svr4_current_sos: Can't read pathname for load map: Input/output error Reading symbols from /lib/libdl.so.2...done. Loaded symbols for /lib/libdl.so.2 Reading symbols from /lib/libpthread.so.0...done. Loaded symbols for /lib/libpthread.so.0 Reading symbols from /usr/lib/libncurses.so.5...done. Loaded symbols for /usr/lib/libncurses.so.5 Reading symbols from /lib/libm.so.6...done. Loaded symbols for /lib/libm.so.6 Reading symbols from /lib/libresolv.so.2...done. Loaded symbols for /lib/libresolv.so.2 Reading symbols from /lib/libc.so.6...done. Loaded symbols for /lib/libc.so.6 Reading symbols from /lib/ld-linux.so.2...done. Loaded symbols for /lib/ld-linux.so.2 Reading symbols from /lib/libnss_files.so.2...done. Loaded symbols for /lib/libnss_files.so.2 Reading symbols from /usr/lib/asterisk/modules/format_wav.so...done. Loaded symbols for /usr/lib/asterisk/modules/format_wav.so Reading symbols from /usr/lib/asterisk/modules/format_pcm.so...done. Loaded symbols for /usr/lib/asterisk/modules/format_pcm.so Reading symbols from /usr/lib/asterisk/modules/format_g729.so...done. Loaded symbols for /usr/lib/asterisk/modules/format_g729.so Reading symbols from /usr/lib/asterisk/modules/res_musiconhold.so...done. Loaded symbols for /usr/lib/asterisk/modules/res_musiconhold.so Reading symbols from /usr/lib/asterisk/modules/res_indications.so...done. Loaded symbols for /usr/lib/asterisk/modules/res_indications.so Reading symbols from /usr/lib/asterisk/modules/res_adsi.so...done. Loaded symbols for /usr/lib/asterisk/modules/res_adsi.so Reading symbols from /usr/lib/asterisk/modules/res_odbc.so...done. Loaded symbols for /usr/lib/asterisk/modules/res_odbc.so Reading symbols from /usr/lib/libodbc.so.1...done. Loaded symbols for /usr/lib/libodbc.so.1 Reading symbols from /usr/lib/asterisk/modules/res_clioriginate.so...done. Loaded symbols for /usr/lib/asterisk/modules/res_clioriginate.so Reading symbols from /usr/lib/asterisk/modules/res_features.so...done. Loaded symbols for /usr/lib/asterisk/modules/res_features.so Reading symbols from /usr/lib/asterisk/modules/res_agi.so...done. Loaded symbols for /usr/lib/asterisk/modules/res_agi.so Reading symbols from /usr/lib/asterisk/modules/res_crypto.so...done. Loaded symbols for /usr/lib/asterisk/modules/res_crypto.so Reading symbols from /lib/libssl.so.5...done. Loaded symbols for /lib/libssl.so.5 Reading symbols from /lib/libcrypto.so.5...done. Loaded symbols for /lib/libcrypto.so.5 Reading symbols from /usr/lib/libgssapi_krb5.so.2...done. Loaded symbols for /usr/lib/libgssapi_krb5.so.2 Reading symbols from /usr/lib/libkrb5.so.3...done. Loaded symbols for /usr/lib/libkrb5.so.3 Reading symbols from /lib/libcom_err.so.2...done. Loaded symbols for /lib/libcom_err.so.2 Reading symbols from /usr/lib/libk5crypto.so.3...done. Loaded symbols for /usr/lib/libk5crypto.so.3 Reading symbols from /usr/lib/libz.so.1...done. Loaded symbols for /usr/lib/libz.so.1 Reading symbols from /usr/lib/libkrb5support.so.0...done. Loaded symbols for /usr/lib/libkrb5support.so.0 Reading symbols from /usr/lib/asterisk/modules/res_config_odbc.so...done. Loaded symbols for /usr/lib/asterisk/modules/res_config_odbc.so Reading symbols from /usr/lib/asterisk/modules/res_convert.so...done. Loaded symbols for /usr/lib/asterisk/modules/res_convert.so Reading symbols from /usr/lib/asterisk/modules/res_config_mysql.so...done. Loaded symbols for /usr/lib/asterisk/modules/res_config_mysql.so Reading symbols from /usr/lib/mysql/libmysqlclient.so.14...done. Loaded symbols for /usr/lib/mysql/libmysqlclient.so.14 Reading symbols from /lib/libcrypt.so.1...done. Loaded symbols for /lib/libcrypt.so.1 Reading symbols from /lib/libnsl.so.1...done. Loaded symbols for /lib/libnsl.so.1 #0 0x0805e2d2 in __load_resource (resource_name=0x81df4df "res_config_mysql.so", cfg=Variable "cfg" is not available. ) at loader.c:735 735 if (!m->load_module) (gdb)