Minor version number is important, provide the output of the command 'kamailio
-v'.
Kamailio is not using all the system memory, you have to specify the maximum size to use
via -m for shared memory (used by all kamailio processes, allocated per kamailio instance)
or -M for private memory (used by one process and allocated for each process).
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Reply to this email directly or view it on GitHub:
https://github.com/kamailio/kamailio/issues/156#issuecomment-101205451