opening devname netmap:igb8-2/R failed: Cannot allocate memory

[crit]

Dear Support Team,

I am experiencing an issue with the Intrusion Detection system on my OPNsense setup. The error message from the log file is as follows:

2025-04-16T13:01:15 Error suricata [111750] <Error> -- opening devname netmap:igb8-2/R failed: Cannot allocate memory

Currently, my OPNsense system is configured with six interfaces.
However, when I attempt to select more than three interfaces in the Administration section, the service fails to start and displays the aforementioned error message.

Could you please assist me in resolving this issue?

Thank you for your support.

Best regards,
Sergei