Hi Arran,
gdb --args radiusd -XX run bt
[root@radauth3 ~]# gdb --args radiusd -XX GNU gdb (GDB) Fedora (7.2-51.fc14) Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i686-redhat-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /usr/local/sbin/radiusd...done. (gdb) run Starting program: /usr/local/sbin/radiusd -XX [Thread debugging using libthread_db enabled] Fri Jan 17 12:15:26 2014 : Info: radiusd: FreeRADIUS Version 3.0.1, for host i686-pc-linux-gnu, built on Jan 17 2014 at 11:06:21 Fri Jan 17 12:15:26 2014 : Debug: Server was built with: Fri Jan 17 12:15:26 2014 : Debug: accounting Fri Jan 17 12:15:26 2014 : Debug: authentication Fri Jan 17 12:15:26 2014 : Debug: ascend binary attributes Fri Jan 17 12:15:26 2014 : Debug: coa Fri Jan 17 12:15:26 2014 : Debug: control-socket Fri Jan 17 12:15:26 2014 : Debug: detail Fri Jan 17 12:15:26 2014 : Debug: dhcp Fri Jan 17 12:15:26 2014 : Debug: dynamic clients Fri Jan 17 12:15:26 2014 : Debug: proxy Fri Jan 17 12:15:26 2014 : Debug: regex-posix Fri Jan 17 12:15:26 2014 : Debug: session-management Fri Jan 17 12:15:26 2014 : Debug: stats Fri Jan 17 12:15:26 2014 : Debug: tcp Fri Jan 17 12:15:26 2014 : Debug: threads Fri Jan 17 12:15:26 2014 : Debug: tls Fri Jan 17 12:15:26 2014 : Debug: unlang Fri Jan 17 12:15:26 2014 : Debug: vmps Fri Jan 17 12:15:26 2014 : Debug: Server core libs: Fri Jan 17 12:15:26 2014 : Debug: talloc : 2.0.* Fri Jan 17 12:15:26 2014 : Debug: ssl : OpenSSL 1.0.0e-fips 6 Sep 2011 Fri Jan 17 12:15:26 2014 : Info: Copyright (C) 1999-2014 The FreeRADIUS server project and contributors Fri Jan 17 12:15:26 2014 : Info: There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A Fri Jan 17 12:15:26 2014 : Info: PARTICULAR PURPOSE Fri Jan 17 12:15:26 2014 : Info: You may redistribute copies of FreeRADIUS under the terms of the Fri Jan 17 12:15:26 2014 : Info: GNU General Public License Fri Jan 17 12:15:26 2014 : Info: For more information about these matters, see the file named COPYRIGHT Fri Jan 17 12:15:26 2014 : Info: Starting - reading configuration files ... Fri Jan 17 12:15:26 2014 : Debug: including dictionary file /usr/local/etc/raddb/dictionary Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/radiusd.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/proxy.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/clients.conf Fri Jan 17 12:15:26 2014 : Debug: including files in directory /usr/local/etc/raddb/mods-enabled/ Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/preprocess Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/detail Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/dynamic_clients Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/utf8 Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/detail.log Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/echo Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/soh Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/linelog Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/pap Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/exec Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/ntlm_auth Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/always Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/ldap Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/attr_filter Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/unix Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/passwd Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/eap Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/files Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/realm Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/chap Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/radutmp Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/mschap Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/replicate Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/dhcp Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/logintime Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/expiration Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/cache_eap Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/digest Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/sradutmp Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/expr Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-enabled/sql Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/mods-config/sql/main/mysql/queries.conf Fri Jan 17 12:15:26 2014 : Debug: including files in directory /usr/local/etc/raddb/policy.d/ Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/policy.d/accounting Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/policy.d/operator-name Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/policy.d/eap Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/policy.d/filter Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/policy.d/cui Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/policy.d/control Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/policy.d/dhcp Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/policy.d/canonicalization Fri Jan 17 12:15:26 2014 : Debug: including files in directory /usr/local/etc/raddb/sites-enabled/ Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/sites-enabled/default Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/StripUserName.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/SetRealm.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/format-callstaid.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/dosomestuff.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/StripUserName.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/dosomestuff.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/poolacc.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/sites-enabled/control-socket Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/sites-enabled/inner-tunnel Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/StripUserName.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/SetRealm.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/format-callstaid.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/dosomestuff.conf Fri Jan 17 12:15:26 2014 : Debug: including configuration file /usr/local/etc/raddb/scripts/poolacc.conf Fri Jan 17 12:15:26 2014 : Debug: main { Fri Jan 17 12:15:26 2014 : Debug: security { Fri Jan 17 12:15:26 2014 : Debug: allow_core_dumps = no Fri Jan 17 12:15:26 2014 : Debug: } Fri Jan 17 12:15:26 2014 : Debug: } Fri Jan 17 12:15:26 2014 : Debug: main { Fri Jan 17 12:15:26 2014 : Debug: name = "radiusd" Program received signal SIGSEGV, Segmentation fault. 0x00c104f6 in _talloc_free () from /usr/lib/libtalloc.so.2 Missing separate debuginfos, use: debuginfo-install glibc-2.13-2.i686 keyutils-libs-1.2-6.fc12.i686 krb5-libs-1.8.4-2.fc14.i686 libcom_err-1.41.12-6.fc14.i686 libselinux-2.0.96-6.fc14.1.i686 libtalloc-2.0.1-1.fc13.i686 ncurses-libs-5.7-9.20100703.fc14.i686 nss-softokn-freebl-3.12.10-1.fc14.i686 openssl-1.0.0e-1.fc14.i686 readline-6.1-2.fc14.i386 zlib-1.2.5-2.fc14.i686 (gdb) bt #0 0x00c104f6 in _talloc_free () from /usr/lib/libtalloc.so.2 #1 0x00118e99 in cf_item_parse (cs=0x80acd78, name=0x8086183 "prefix", type=100, data=0x8096044, dflt=0x808618a "/usr/local") at src/main/conffile.c:954 #2 0x001196a4 in cf_section_parse (cs=0x80acd78, base=0x0, variables=0x8093a00) at src/main/conffile.c:1244 #3 0x0805f594 in read_mainconfig (reload=0) at src/main/mainconfig.c:873 #4 0x08066e1c in main (argc=2, argv=0xbffff7e4) at src/main/radiusd.c:316 Thanks, Jezz.