Would you mind opening a report at https://bugzilla.kernel.org? I'm
not sure if anybody will be able to do anything about this, but it's
always possible.
A complete dmesg log and "sudo lspci -vv" output from a successful
boot would be a good start. And if you have a screenshot of the
failure, that would help, too. You can use the "ignore_loglevel"
kernel parameter to make sure we see everything on the console.
Does
this machine have an iLO? If so, it may have logs that could be
useful if this is related to some sort of bus error.