I also have issues and as I'm running VM, I managed to get a crash dump and got this line in GDB:
kernel BUG at /build/linux-5mCauq/linux-4.15.0/net/ipv4/ip_output.c:636 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1842726 Title: Random freezes on 4.15.0-60 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1842726/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs