[Samba] "Random" crashes of Samba as AD DC

Mauel, Volker v.mauel at fz-juelich.de
Tue Jul 24 18:44:35 UTC 2018

Hey Andrew,

thanks for your help, i just changed my config to include the panic action and will send you a log as soon as the next crash happened.

In the meantime i wrote a bash script to keep my users happy with a running service by checking the recent log for the error message and initiating a samba restart that way.

i switched back to an older backup since the 4.8.3 version did not change anything regarding that problem for me, recompiled with debug symbols and systemd support, besides that, the situation is the same.

Von: Andrew Bartlett [abartlet at samba.org]
Gesendet: Dienstag, 24. Juli 2018 19:46
An: Mauel, Volker; samba at lists.samba.org
Betreff: Re: [Samba] "Random" crashes of Samba as AD DC

On Tue, 2018-07-17 at 16:30 +0000, Mauel, Volker via samba wrote:
> Hey all,
> up until 2 weeks ago my samba DC was running just fine, then it began crashing randomly.
> I was using 4.8.0 before, now upgraded to a self-compiled 4.8.3 with default build parameters on an up-to-date centos 7.5 with disabled SELinux and bind9 as DNS backend with samba_dlz.

It certainly shouldn't crash.

If you can get a gdb backtrace of it (using the panic action and our
gdb_backtrace script) that would be great.

panic action = path_to/gdb_backtrace %d

Send that in to me personally as it likely has domain-specific info in
the backtrace.  If you can also make a bugzilla account in the meantime
we can trace fixing it there without needing to put your backtrace in
the public.


Andrew Bartlett

Andrew Bartlett                       http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba

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