Well, I now know WHAT caused the coredump; a passwd change request.  and I was stracing the slapd process while it happened so I have that as well.


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Regards,

Kevin Martin


On Fri, Aug 27, 2021 at 10:33 AM Maucci, Cyrille <cyrille.maucci@hpe.com> wrote:

Definitely core dumps are hooked to system-coredump.

I don’t know this subsystem but I’m sure google knows.

If I was like you, facing such a situation an unable to figure out where system-coredump throws the thing, I’d change kernel.core_pattern to a good old core.%p and have the core being reproduced.

 

From: kevin martin [mailto:ktmdms@gmail.com]
Sent: Friday, August 27, 2021 5:28 PM
To: Maucci, Cyrille <cyrille.maucci@hpe.com>
Cc: openldap-technical@openldap.org
Subject: Re: OpenLDAP 2.5.7 dies

 

Sorry, didn't finish:

 

kernel.core_pattern = |/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h %e

 

yet no coredump under systemd/coredump...

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Regards,

 

Kevin Martin

 

 

On Fri, Aug 27, 2021 at 10:27 AM kevin martin <ktmdms@gmail.com> wrote:

on systems that are RHEL 8 or equivalent, isn't systemd-coredump used if kernel.core_pattern is set as such (thereby not needing abrt) or am I mistaken?  my ulimit -c says unlimited and my sysctl setting is:

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Regards,

 

Kevin Martin

 

 

On Fri, Aug 27, 2021 at 10:20 AM Maucci, Cyrille <cyrille.maucci@hpe.com> wrote:

Linux basics…

 

Check kernel.core_pattern using sysctl -a

Check ulimit -c

Check if you have abrt installed..

 

++Cyrille

 

From: kevin martin [mailto:ktmdms@gmail.com]
Sent: Friday, August 27, 2021 5:16 PM
To: Maucci, Cyrille <cyrille.maucci@hpe.com>
Cc: openldap-technical@openldap.org
Subject: Re: OpenLDAP 2.5.7 dies

 

hmm, where might the core dump be?


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Regards,

 

Kevin Martin

 

 

On Fri, Aug 27, 2021 at 10:03 AM Maucci, Cyrille <cyrille.maucci@hpe.com> wrote:

Grab the core dump and extract the stack traces ?

 

From: kevin martin [mailto:ktmdms@gmail.com]
Sent: Friday, August 27, 2021 5:01 PM
To: openldap-technical@openldap.org
Subject: OpenLDAP 2.5.7 dies

 

Aug 27 14:25:38 newldap0.mgt.ch3.bmi slapd[38335]: ppm: Reading pwdCheckModuleArg attribute
Aug 27 14:25:38 newldap0.mgt.ch3.bmi systemd[1]: slapd.service: Main process exited, code=killed, status=11/SEGV
Aug 27 14:25:38 newldap0.mgt.ch3.bmi systemd[1]: slapd.service: Failed with result 'signal'.

 

is this a known issue?  Oracle Linux 8.  what can I do to help determine what occurred?

 

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Regards,

 

Kevin Martin