CIFS/Samba Segment fault

The Samba 'panic action' script, /usr/share/samba/panic-action,
was called for PID 5455 (/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
Debian. For information about the procedure for submitting bug reports,
please see http://www.debian.org/Bugs/Reporting or the reportbug(1)
manual page.

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007ffb50915b89 in __libc_waitpid (pid=8846, stat_loc=stat_loc@entry=0x7ffce5f73220, options=options@entry=0) at ../sysdeps/unix/sysv/linux/waitpid.c:40
#0 0x00007ffb50915b89 in __libc_waitpid (pid=8846, stat_loc=stat_loc@entry=0x7ffce5f73220, options=options@entry=0) at ../sysdeps/unix/sysv/linux/waitpid.c:40
#1 0x00007ffb5089d12b in do_system (line=<optimized out>) at ../sysdeps/posix/system.c:148
#2 0x00007ffb521ea0c1 in smb_panic_s3 () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#3 0x00007ffb53ea3e5f in smb_panic () from /usr/lib/x86_64-linux-gnu/libsamba-util.so.0
#4 0x00007ffb53aa5863 in ?? () from /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0
#5 0x00007ffb53aa5bae in smbd_exit_server_cleanly () from /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0
#6 0x00007ffb51b8fcc2 in exit_server_cleanly () from /usr/lib/x86_64-linux-gnu/samba/libsmbd-shim.so.0
#7 0x00007ffb53a71140 in ?? () from /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0
#8 0x00007ffb50c0f067 in tevent_common_check_signal () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#9 0x00007ffb5220a254 in run_events_poll () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#10 0x00007ffb5220a617 in ?? () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#11 0x00007ffb50c0b43d in _tevent_loop_once () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#12 0x00007ffb50c0b5db in tevent_common_loop_wait () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#13 0x00007ffb53a780f8 in smbd_process () from /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0
#14 0x0000561788563dd0 in ?? ()
#15 0x00007ffb5220a3a1 in run_events_poll () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#16 0x00007ffb5220a617 in ?? () from /usr/lib/x86_64-linux-gnu/libsmbconf.so.0
#17 0x00007ffb50c0b43d in _tevent_loop_once () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#18 0x00007ffb50c0b5db in tevent_common_loop_wait () from /usr/lib/x86_64-linux-gnu/libtevent.so.0
#19 0x00005617885605e5 in main ()
A debugging session is active.

Inferior 1 [process 5455] will be detached.

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