If i use the -N option with smbtree I get a segmentation fault:
e.g. smbtree -S -N

===============================================================
INTERNAL ERROR: Signal 11: Segmentation fault in pid 17661 (4.16.5)
If you are running a recent Samba version, and if you think this
problem is not yet fixed in the latest versions, please co
nsider reporting this bug, see https://wiki.samba.org/index.php/Bug_Reporting
===============================================================
PANIC (pid 17661): Signal 11: Segmentation fault in 4.16.5
BACKTRACE: 17 stack frames:
#0 /usr/local/samba/lib/libsamba-util.so.0(log_stack_trace+0x31) [0xb7df6680]
#1 /usr/local/samba/lib/libsamba-util.so.0(smb_panic_log+0x1ad) [0xb7df65f9]
#2 /usr/local/samba/lib/libsamba-util.so.0(smb_panic+0x1d) [0xb7df661c]
#3 /usr/local/samba/lib/libsamba-util.so.0(+0xb13a) [0xb7df613a]
#4 /usr/local/samba/lib/libsamba-util.so.0(+0xb155) [0xb7df6155]
#5 linux-gate.so.1(__kernel_sigreturn+0) [0xb7f85564]
#6 /lib/i386-linux-gnu/libc.so.6(+0x904f6) [0xb7b1d4f6]
#7 /usr/local/samba/lib/private/libreplace-samba4.so(rep_strlcpy+0x1d)
[0xb7cae286]
#8 ./smbtree(+0x2aed) [0x48baed]
#9 /usr/local/samba/lib/libsmbclient.so.0(+0x16662) [0xb7e9b662]
#10 /usr/local/samba/lib/libsmbclient.so.0(+0x16886) [0xb7e9b886]
#11 /usr/local/samba/lib/libsmbclient.so.0(+0x16b6e) [0xb7e9bb6e]
#12 /usr/local/samba/lib/libsmbclient.so.0(+0x17965) [0xb7e9c965]
#13 /usr/local/samba/lib/libsmbclient.so.0(+0xcedf) [0xb7e91edf]
#14 ./smbtree(main+0x546) [0x48c04c]
#15 /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0x106) [0xb7aabe46]
#16 ./smbtree(_start+0x31) [0x48b471]
smb_panic(): calling panic action [/usr/share/samba/panic-action 17661]
smb_panic(): action returned status 0
Can not dump core: corepath not set up

---------------------------------------------------------------------------------------------------
I configure it to build using:

#! /bin/bash -x

DEB_HOST_MULTIARCH=i386_linux_gnu

conf_args="\
        --prefix=/usr/local/samba \
        --sysconfdir=/etc/samba
        --with-smbpasswd-file=/etc/samba/smbpasswd \
        --with-quota \
        --with-gpgme \
        --without-systemd \
        --disable-cups \
        --without-libarchive \
        --without-ad-dc"

./configure $conf_args

make

make installl

Building on Devuan Chimaera (Debian Bullseye)