Did you get it sorted out? We're running into the exact same issue on a Big Sur system now: IPsec ESP-in-UDP packets are dropped on that system since the packets from the VPN gateway have a UDP checksum of 0 (prior packets with IKE on that same port with valid UDP checksum are received just fine). We can see the packets in tcpdump but they do not get delivered to the socket (a normal UDP socket).
eqHaisenko
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Huh… I'm currently working on a System Extension and the system often gets into a broken state that can only be fixed by a reboot. So I was rebooting for the 4th time in a few hours and all of a sudden the reboot took veeery long again: stuck at about 20% or so, like FxFactory said. But this time, when the system came up, if finally was at Beta 4. Sorry, no idea what was different this time.
That's great, so a singleton/global variable would be seen by all instances. Is there some documentation or other "guarantee" about there only being a single system extension process? That is, can we rely on this behaviour?
I was able to resolve this by holding the Shift key down when starting Safari. This resets Safari.
For me, Safari tries to load stuff and then shows an exception dialog. Either button will then crash the app. I would love to post the stack trace, but the new forums are broken as well and show an error when I try to post the stack trace in the three-backticks-codeblock.