FYI looking in dmesg and boot.log I could see the long wait was for systemd. Using journalctl I could see the long pause was zfs-import- cache & zfs-load-module waiting for systemd-udev-settle (which is presumably hanging due to the amd related kernel problem). I am not using zfs so I systemctl disabled systemd-udev-settle zfs-import-cache, zfs-load-module & zfs-mount (which is what depended on those two) which now results in my system booting quickly. This is not a good general solution (as people might need zfs, but I don't) and the system still hangs when shutting down. I just wanted to document this here in case it proves useful to anyone else.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1956401 Title: amdgpu hangs for 90 seconds at a time in 5.13.0-23, but 5.13.0-22 works To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1956401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
