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

[Francois Tigeot]

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,
>   panic: assertion: vp->v_sysref.refcnt > 0 && (vp->v_flag & (VFREE|VINACTIVE)) == 0 in vref

This looks superficially similar to issue 1791 (devfs in chroot)

http://bugs.dragonflybsd.org/issue1791

-- 
Francois Tigeot