oot@samba4-ad2:smbd# gdb core.27767 GNU gdb (GDB) Red Hat Enterprise Linux (7.2-75.el6) Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later 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 "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: ... BFD: Warning: /var/log/samba/cores/smbd/core.27767 is truncated: expected core file size >= 33017856, found: 16830464. BFD: Warning: /var/log/samba/cores/smbd/core.27767 is truncated: expected core file size >= 33017856, found: 16830464. Reading symbols from /usr/sbin/smbd...Reading symbols from /usr/lib/debug/usr/sbin/smbd.debug...done. done. [New Thread 27767] Cannot access memory at address 0x7ffa5eb4e550 Missing separate debuginfos, use: debuginfo-install audit-libs-2.3.7-5.el6.x86_64 avahi-libs-0.6.25-15.el6.x86_64 cups-libs-1.4.2-67.el6.x86_64 cyrus-sasl-lib-2.1.23-15.el6_6.1.x86_64 dbus-libs-1.2.24-7.el6_3.x86_64 glibc-2.12-1.149.el6.x86_64 gnutls-2.8.5-14.el6_5.x86_64 keyutils-libs-1.4-5.el6.x86_64 krb5-libs-1.10.3-33.el6.x86_64 libacl-2.2.49-6.el6.x86_64 libattr-2.4.44-7.el6.x86_64 libcap-2.16-5.5.el6.x86_64 libcom_err-1.41.12-21.el6.x86_64 libgcrypt-1.4.5-11.el6_4.x86_64 libgpg-error-1.7-4.el6.x86_64 libselinux-2.0.94-5.8.el6.x86_64 libtasn1-2.3-6.el6_5.x86_64 nspr-4.10.6-1.el6_5.x86_64 nss-3.16.1-14.el6.x86_64 nss-softokn-freebl-3.14.3-18.el6_6.x86_64 nss-util-3.16.1-3.el6.x86_64 openldap-2.4.39-8.el6.x86_64 pam-1.1.1-20.el6.x86_64 zlib-1.2.3-29.el6.x86_64 (gdb) r No core file now. Starting program: /usr/sbin/smbd warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7ffff7ffa000 [Thread debugging using libthread_db enabled] Program exited with code 01. (gdb)