Panic or segfault in Samba after restarting smbd service and remounting drives

[Anastasius Gavras]

1. Ubuntu 14.04.4 LTS
2. Installed: 2:4.3.9+dfsg-0ubuntu0.14.04.3

-- While service smbd was running
-- (sudo) Moved folder being made available as a network drive via samba to Windows machines (at least one Windows 7 machine had mounted samba network drives)
-- (sudo) Edited /etc/samba/smb.conf to update folder location
-- Restarted samba with "sudo service smbd restart"
-- Re-opened a folder on the samba network drive via Windows 7

Received "Panic or segfault in Samba"
====
The Samba 'panic action' script, /usr/share/samba/panic-action, was called for PID 1901 (/usr/sbin/smbd).

This means there was a problem with the program, such as a segfault.
Below is a backtrace for this process generated with gdb, which shows the state of the program at the time the error occurred. The Samba log files may contain additional information about the problem.

If the problem persists, you are encouraged to first install the samba-dbg package, which contains the debugging symbols for the Samba binaries. Then submit the provided information as a bug report to Ubuntu by visiting this link:
https://launchpad.net/ubuntu/+source/samba/+filebug

[Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007ff713147a0c in waitpid () from /lib/x86_64-linux-gnu/libc.so.6
#0 0x00007ff713147a0c in waitpid () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007ff7130cd232 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x00007ff715b62271 in smb_panic_s3 () from /usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0
#3 0x00007ff7168d98df in smb_panic () from /usr/lib/x86_64-linux-gnu/libsamba-util.so.0
#4 0x00007ff7164dca65 in ?? () from /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0
#5 0x00007ff7164dcd5e in smbd_exit_server_cleanly () from /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0
#6 0x00007ff7143baca2 in exit_server_cleanly () from /usr/lib/x86_64-linux-gnu/samba/libsmbd-shim.so.0
#7 0x00007ff7164a6850 in ?? () from /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0
#8 0x00007ff713453967 in tevent_common_check_signal () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#9 0x00007ff7147fa8e4 in run_events_poll () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#10 0x00007ff7147fac80 in ?? () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#11 0x00007ff71344fd5d in _tevent_loop_once () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#12 0x00007ff71344fefb in tevent_common_loop_wait () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#13 0x00007ff7164ad5b9 in smbd_process () from /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0
#14 0x00007ff716f736b6 in ?? ()
#15 0x00007ff7147faa2c in run_events_poll () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#16 0x00007ff7147fac80 in ?? () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#17 0x00007ff71344fd5d in _tevent_loop_once () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#18 0x00007ff71344fefb in tevent_common_loop_wait () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#19 0x00007ff716f716c4 in main ()
A debugging session is active.

 Inferior 1 [process 1901] will be detached.

Quit anyway? (y or n) [answered Y; input not from terminal]