[Samba] Migration from 3.6.25-0ubuntu0.12.04.10 to 4.x with passdb backend = ldapsam

[Rowland Penny]

On Mon, 19 Feb 2018 14:49:48 +0300
Vladimir Skubriev via samba <samba at lists.samba.org> wrote:

> Migration from 3.6.25-0ubuntu0.12.04.10 to 4.x with passdb backend =
> ldapsam
> 
> Hi.
> 
> I tried to migrate my storage(smb) server to more newer version, but
> faced with 'segfaults", after(in progress) client authenticating,
> when samba tries to start a new smbd instance (as i understand). I
> saw client authentication success, which interrupts in following
> places:
> 
> In case with 4.3.11+dfsg-0ubuntu0.16.04.12 from ubuntu xenial there is
> error in
> `/usr/lib/x86_64-linux-gnu/samba/libsmbregistry.so.0(log_stack_trace+0x1a)
> [0x7f2bc30a17aa]`
> 
> In case with 4.7.5-1 from .../stable/samba-4.7.5.tar.gz there is
> error in `/usr/local/samba/lib/libsmbconf.so.0(log_stack_trace+0x1f)
> [0x7f111922a64b]`
> 
> What should be my further actions?
> 
> As described in logs: "Please read the Trouble-Shooting section of the
> Samba HOWTO". I would like to avoid a deep debugging.
> 
> I would like to solve the problem more easily than to do an in-depth
> analysis.
> 
> Thank you for your help.
> 

Bit hard to say what the problem could be from what you have posted,
can you post your smb.conf?

Rowland