samba - Aug 2020 - core dump from samba-tool when chnging user password

FreeBSD-12.1p8
Samba-4.10.15

I attempted to change the user password of a logged in userid using samba-tool
on the PDC and this is what happened:


[root at smb4-2 ~ (master)]# samba-tool user password -U testuser
Password for [BROCKLEY\testuser]:
New Password:
Retype Password:
Bad talloc magic value - unknown value
==============================================================INTERNAL ERROR:
Signal 6 in pid 79543 (4.10.15)
If you are running a recent Samba version, and if you think this problem is not
yet fixed in the latest versions, please consider reporting this bug, see
https://wiki.samba.org/index.php/Bug_Reporting
==============================================================smb_panic_default:
PANIC (pid 79543): internal error
BACKTRACE: 6 stack frames:
 #0 0x8015c73c7 <log_stack_trace+0x37> at
/usr/local/lib/samba4/libsamba-util.so.0
 #1 0x8015c723e <smb_panic+0x9e> at
/usr/local/lib/samba4/libsamba-util.so.0
 #2 0x8015c71b5 <smb_panic+0x15> at
/usr/local/lib/samba4/libsamba-util.so.0
 #3 0x8015c759e <log_stack_trace+0x20e> at
/usr/local/lib/samba4/libsamba-util.so.0
 #4 0x8015c7199 <fault_setup+0x59> at
/usr/local/lib/samba4/libsamba-util.so.0
 #5 0x8005f13c0 <_pthread_sigmask+0x530> at /lib/libthr.so.3
Abort trap (core dumped)


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James B. Byrne                mailto:ByrneJB at Harte-Lyne.ca
Harte & Lyne Limited          http://www.harte-lyne.ca
9 Brockley Drive              vox: +1 905 561 1241
Hamilton, Ontario             fax: +1 905 561 0757
Canada  L8E 3C3

On 24/08/2020 14:25, James B. Byrne via samba wrote:
> FreeBSD-12.1p8
> Samba-4.10.15
>
> I attempted to change the user password of a logged in userid using
samba-tool
> on the PDC and this is what happened:
It isn't a PDC, that is something quite different ;-)

It is your first DC.

I am also beginning to think your problems are all self inflicted by 
running your Samba instances in Freebsd jails. The problems you are 
having around talloc are definitely not normal. Is there anyway you 
could set up Samba without using jails ?

Rowland