Comment 6 for bug 1521481

GDB info after installing debug symbols

(gdb) bt
#0 pam_sm_authenticate (pamh=0x7f5be4017cd0, flags=<optimized out>, argc=1, argv=0x7f5be4022e30) at pam_ecryptfs.c:142
#1 0x00007f5c0f1eddcf in _pam_dispatch_aux (use_cached_chain=<optimized out>, resumed=<optimized out>, h=<optimized out>, flags=0, pamh=0x7f5be4017cd0)
    at pam_dispatch.c:110
#2 _pam_dispatch (pamh=pamh@entry=0x7f5be4017cd0, flags=flags@entry=0, choice=choice@entry=1) at pam_dispatch.c:395
#3 0x00007f5c0f1ed65d in pam_authenticate (pamh=0x7f5be4017cd0, flags=0) at pam_auth.c:34
#4 0x00007f5c0f425685 in authenticate_user_with_pam_server (vio=0x7f5c0f666450, info=0x7f5c0f666468)
    at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.25-73.1/plugin/percona-pam-for-mysql/src/auth_pam_common.c:145
#5 0x00000000007689f7 in do_auth_once (thd=0x3137bd0, auth_plugin_name=0x7f5c0f6667a0, mpvio=0x7f5c0f666450)
    at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.25-73.1/sql/sql_acl.cc:11254
#6 0x0000000000769091 in acl_authenticate (thd=0x3137bd0, com_change_user_pkt_len=0)
    at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.25-73.1/sql/sql_acl.cc:11412
#7 0x00000000007a9138 in check_connection (thd=0x3137bd0)
    at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.25-73.1/sql/sql_connect.cc:1213
#8 0x00000000007a92e5 in login_connection (thd=0x3137bd0)
    at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.25-73.1/sql/sql_connect.cc:1283
#9 0x00000000007a9a2f in thd_prepare_connection (thd=0x3137bd0)
    at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.25-73.1/sql/sql_connect.cc:1452
#10 0x00000000007a9f4f in do_handle_one_connection (thd_arg=0x3137bd0)
    at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.25-73.1/sql/sql_connect.cc:1531
#11 0x00000000007a99f8 in handle_one_connection (arg=0x3137bd0)
    at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.25-73.1/sql/sql_connect.cc:1444
#12 0x0000000000dd113d in pfs_spawn_thread (arg=0x8de67d0)
    at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.25-73.1/storage/perfschema/pfs.cc:1860
#13 0x00007f5cbf15a6aa in start_thread (arg=0x7f5c0f667700) at pthread_create.c:333
#14 0x00007f5cbdda8eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
(gdb)