devfs in jail + logging out from console(ttyv1+) -> panic

[Matthew Dillon]

:
:On Sun, Oct 17, 2010 at 08:41:38AM +0900, YONETANI Tomokazu wrote:
:> This is 100% reproducible(but only tried on x86_64).  If you're running
:> a jail and using devfs inside the jail directory
:> /etc/fstab:
:>   devfs		/pbulk/1/dev	devfs	rw,jail	0	0
:> 
:> and login to console (other window than ttyv0), then logout from it,
:> the kernel panics.  `uname -a' says:
:
:A small addition: if I login from the console (ttyv0 this time) and
:start pbulk program inside a GNU screen session,
:  $ screen bulkbuild
:
:detach it,
:  (ctrl-A d)
:
:reattach to it,
:  $ screen -r
:
:detach it again,
:  (ctrl-A d)
:then logout from the console and the kernel panics too.  If I log into
:this machine via ssh and do the same thing, the kernel won't panic,
: so this may be specific to ttyvN.

    Could you upload a kernel core to leaf showing the panic?

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>