OPNsense becomes unreachable when new interface is enabled or disabled

[w00000dy]

Describe the bug

Enabling or disabling an interface and then clicking "Apply changes" results in a very long load time. The OPNsense Web UI is also unreachable during this time. I would estimate that it is down for about 5 minutes.

To Reproduce

Steps to reproduce the behavior:

1. Go to Interfaces -> Assignments (URL : .../interfaces_assign.php)
2. Assign a new interface. (e.g. Device: igb3, Description: "test")
3. Click on the "Add" button
4. Go to Interfaces -> [test] (URL : .../interfaces.php?if=opt2)
5. Select the "Enable Interface" check box
6. Click on "Save"
7. Click on "Apply changes".

Expected behavior

It should take no more than 5 seconds to load after I click "Apply changes".

Screenshots

Video

recording-1731001462794.mp4

Additional context

Even after a complete factory reset, the problem still exists.

Environment

OPNsense 24.7.8-amd64
Intel® Core i7-7500U CPU @ 2.70GHz (2 cores, 4 threads)
Network Intel® I211 Gigabit Network Connection

[marius137]

I have the same issue on several DEC3852 Appliances

[fichtner]

I think that's the same as 988dbae92 shipping in 24.7.11 tomorrow.