Description

kamailio 5.6.1 on AlmaLinux 9 and OpenSSL 3.0.5
Used tlsa to separate the OS version of OpenSSL (which is 3.0.1). The same issue happens
with the OS version of OpenSSL
Generating TLS client traffic
The issue will occur at about 25 conn/sec
Multiple unpredicatable types of shm corruption

Troubleshooting

No issue with tlsa + OpenSSL 1.1.1q; the module can sustain 50 conn/sec up to 500 persistent connections.

Reproduction

Used kamailio configuration from the outbound module documentation; i.e., configure kamailio as a TLS edge proxy.
To isolate the registrar is another kamailio system
Use a SIP load tester to generate REGISTER traffic(Expires: 600) ; at the end of the REGISTER, keep the connection alive and reREGISTER at 300 secs.
Generate traffic at > 25 conn/sec (with < 25 conn/sec the test usually succeeds)

Debugging Data

BT in comments below

Log Messages

SIP Traffic

Possible Solutions

Additional Information

5.6.1

Operating System:
AlmaLinux 9, with (OS) OpenSSL 3.0.1. I used tlsa + OpenSSL 3.0.5

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