Re: Panic during reboot on amd64 9.99.52

[Jason Thorpe <thorpej%me.com@localhost>]

> On Mar 28, 2020, at 10:08 AM, Paul Goyette <paul%whooppee.com@localhost> wrote:
> 
> I've filed PR kern/55121 for this issue...
> 
> I _do_ have a crash dump available if anyone wants me to provide any
> additional info.

I've analyzed the problem and have a fix.  It's due to the incredibly misguided DVF_DETACH_SHUTDOWN flag.  You just happened to win the lottery -- my test system uses makphy, which doesn't set that flag, but ihphy does.

-- thorpej