After updating Opnsense from 25.7.10 to 25.7.11_1 opening WebGUI eats all memory

[wide]

I've updated from 25.7.10 to 25.7.11_1 yesterday. It's now impossible to access WebGUI because after the login screen when dashboard starts loading the UI spawns hundreds of PHP processes which causes system load to raise above 100 and after few minutes sytem runs out of memory and also consumes all the allocated swap space finally killing the network traffic completely.

System recovers from the situation after closing the WebGUI browser tab but it might take 30-60 minutes when all the PHP processes are finished and memory consumption and system load returns back to normal values.

[Patrick M. Hausen]

Spin up the system isolated and only your desktop/laptop connected to LAN. No WAN, no switch, no other devices.

System working? No problems? Also no Internet, of course.

If yes, go to Interfaces: Neighbors: Automatic Discovery and disable that. Then reconnect.

HTH,
Patrick

[wide]

Hi,

System is fully functional and stable after reboot if I don't open the WebGUI. So clean start and staying away from management keeps the load and memory consumption in similar levels what were before the 25.7.11_1 update. Is it sure that my case is connected to this Neighbors: Automatic Discovery feature?

[stanthewizzard]

Wrong post

[Patrick M. Hausen]

Is it sure that my case is connected to this Neighbors: Automatic Discovery feature?

No but this is the single change in the latest release which seems to impact folks negatively the most. Including filling disks, 100% CPU load, ... so I would not be surprised if it would also spawn a lot of processes.

[nuke]

I had exactly the same issue.  The disk filled up completely and all processes stopped.

It looks to be the logs in /var/log/hostwatch are so large that the disk is full and nothing else will work.  The GUI dies.

I had to reboot, connect locally to the OPNsense device, turn off/disable the Interfaces:Neighborhood (see post in German forum) and then manually delete the logs from /var/log/hostwatch.

Once the logs were deleted and I rebooted again, everything appears to be back to normal.

BTW, check out the other posts about hostwatch in the forum.  It appears they are all related to this.

[wide]

I managed to update to version 25.7.11_2 by using opnsense-shell and then run restart all the services from shell also.
System remains stable. No exessive disk writes, normal memory consuption and regular CPU load.

But still immediately after I open the WebGUI the systems goes haywire. Tens and then hundreds of PHP processes spawn and system runs out of memory.