Could you try to disable dynamic dns updates in domain section.
dyndns_update = false
Thank you very much for log files from valgrind.On (13/08/14 11:12), Chris Hartman wrote:
>Greetings,
>
>Could you send me more coredumps privately with fuly updated ubuntu 14.04?
>> Because it really strange that sssd crashed in syscal fdatasync.
>
>Lukas, not a problem. Stand by for an email with a 7zip archive of a core
>dump and back trace. The debugging symbols for lib{tdb,ldb}1 were installed
>for this.
>
>I have another idea which could help us to to find a problem.
>> We can try to run sssd_be with valgrind.
>> 1) we need to find out arguments for process sssd_be
>> sh-4.2$ pgrep -af sssd_be
>> 1191 /usr/libexec/sssd/sssd_be --domain idm.example.com --debug-to-files
>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> this output will be used in sssd.conf
>> 2) add new option to domain section in sssd.conf
>> command = valgrind -v --show-reachable=yes --log-file=/var/log/sssd/valgrind_idm.example.com.log
>> /usr/libexec/sssd/sssd_be --domain idm.example.com --debug-to-files
>> # do not forget to replace output from previous step.
>>
>> 3) It would be good to install debug symbols for libraries libtdb1 and
>> libldb1
>> 4) reproduce problem
>> some interesting output can be in log file from valgrind.
>
> I did this with interesting(?) results. The sssd_be process never actually
>crashed but there is some erroneous output in the valgrind log. Removing
>the special command option results in a crash as expected. I've sanitized
>and attached the log to this email. Let me know if that reveals anything.
>
There is use after free problem in dynamic dns updates code.
Could you try to disable dynamic dns updates in domain section.
dyndns_update = false
LS
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