I updated to today's rawhide and rebooted. It boots but crashed when loading Xorg. Rebooted again and it back working. After login, a libnotify popup appeared (and I thought it was Xorg which fscked):
There's another popup after sending to notify it successfully sent but I was too late to screenshot it as it disappears after a few second. Anyway, this thing is neat!. Finding data after a kernel crash is not something 'users' would do, but with these, upstream gonna have some good data to work with.
Statistics are gathered at KernelOops.org