On 03/12/2015 13:33, Jonathan Billings wrote: > On Thu, Dec 03, 2015 at 09:29:21AM +0000, Duncan Brown wrote: >> Hi All >> >> After upgrading to 7.2, I'm getting an immediate kernel panic on boot >> >> Dropping back to 3.10.0-229.20.1.el7.x86_64 and the system boots fine >> >> How can I go about diagnosing the problem here? > It'd probably help if you could give us more details on the kernel > panic. > > Can you see where it is panicking? Does it happen during the > kernel/initrd stage or later during boot? > > I suggest installing the kdump service if it is panicking later in > boot, you might be able to capture a kernel dump which makes debugging > these things a lot easier. Otherwise, I suggest trying to capture the > panic message some other way. > The last message before it is "switching to clocksource hpet" Then the panic scrolls by I've no idea if that counts as later or not