On Fri, Nov 24, 2017 at 07:04:10PM -0500, Alexandre Pitre via FreeIPA-users 
wrote:
> Hi,
> 
> I had two freeipa replica servers up and running in our german DC for
> nearly 2 months and this morning out of the blue they stopped working.
> 
> Looking at ipactl status, both servers are reporting that their directory
> service is stopped. Trying to restart ipa only works from 2 minutes to an
> hour.
> 
> Looking at the /var/log/dirsrv/slapd-DOMAIN-COM/errors there's no errors
> that show up before it crash.
> 
> However, looking at /var/log/messages, this lovely segfault show up:
> 
> XXXXXX kernel: ns-slapd[17507]: segfault at 8 ip 00007fb99e56149f sp
> 00007fb96bee83c0 error 4 in libslapd.s
> o.0.1.0[7fb99e483000+128000]
> 
> Out of despair to get production back up and running quickly, I reinstalled
> one replica...it worked for an hour and came back with the same issue.
> 
> We have 6 other freeipa replica running accross 3 different site with zero
> issues.
> 
> We're running CentOS 7.4 with the latest packages, ipa-server-4.5.0-21 &
> 389-ds-base-1.3.6.1-21.
> 
> Any clues why ?

sorry, no clue but on
http://www.port389.org/docs/389ds/FAQ/faq.html#debugging-crashes you can
see how to get a core dump file. Inspecting this might help to
understand what is going wrong.

bye,
Sumit

> 
> Thanks
> 
> -- 
> Alexandre Pitre
> alexandre.pi...@gmail.com

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