Hello, I am running the FreeBSD-based router OS OPNSense in a domU. I recently upgraded my dom0 kernel from 5.15.26 to 5.15.32 and with the new kernel, OPNSense had no connectivity. I downloaded from kernel.org 5.15.26-32, built and installed each version and booted them consecutively until I found the version that no longer worked. It turned out to be 5.15.29.
I looked through the change log of 5.15.29 and found two commits for xen-netback commit 2708ceb4e5cc84ef179bad25a2d7890573ef78be commit fe39ab30dcc204e321c2670cc1cf55904af35d01 I reverted these changes (a revert of a revert, yes) in 5.15.32, built and installed. Now the network works. Now I dont know enough to know thats for sure the right fix. Maybe I have a config issue, I dont know, but reverting that change fixes the problem. What should I do? I was asked to provide xenstore -ls https://pastebin.com/hHPWgrEy