cannot SSH into AG and see httpd error "Invalid argument: ap_queue_info_set_idle failed. Attempting to shutdown gracefully" at console after upgrading AG OS to SLES 12 SP1

Access Manager 4.2.2 running well on to of SLES 11.4 hosts. Admin then did upgrades of the OS, going from SLES 11.4 to SLES 12.1 (and including all current updates via the scc channel on Access Gateway Service). Following these updates, I applied the workaround for apache2 not starting as detailed in https://support.microfocus.com/kb/doc.php?id=7018554 and was then able to start apache2 on the AG's.

However, after the workaround was applied and apache2 was started, I then began seeing broadcast messages in the ssh console as below:

==================
"Broadcast message from systemd-journal@<name>
httpd[id]: [emerg] (22) Invalid argument: ap_queue_info_set_idle failed. Attempting to shutdown gracefully"
==================

Despite the error, I was able to continue to use the existing ssh sessions. However, no *new* ssh sessions were allowed, error was given like "connection refused".

Tried a reboot of the AG machine, made no difference other than now the existing ssh session was lost.

The admin console shows the health of the AG's green, and protected resources can be configured and accessed successfully.

Modified following configuration on AG:

// copy following files from 4.2 install dir ($ag_install_dir/scripts/rhel_files) to AG host
cp novell-activemq.service /etc/systemd/system/
cp novell-apache2.service /etc/systemd/system/
cp novell-agscd.service /etc/systemd/system/
cp novell-jcc.service /etc/systemd/system/
cp novell-mag.service /etc/systemd/system/

systemctl daemon-reload
systemctl enable novell-activemq.service
systemctl enable novell-apache2.service
systemctl enable novell-agscd.service
systemctl enable novell-jcc.service
systemctl enable novell-mag.service

Note the link at https://support.microfocus.com/kb/doc.php?id=7018476 shows more details for all NAM components,