Re: kassert in vfs_bio.c

[Christoph Egger <Christoph_Egger%gmx.de@localhost>]

On Wednesday 25 June 2008 13:28:47 Manuel Bouyer wrote:
> On Wed, Jun 25, 2008 at 01:17:20PM +0200, Christoph Egger wrote:
> > > I'm running a kernel with the additionnal checks in attachment, but
> > > they didn't detect anything wrong before the above panic.
> >
> > Forgot to attach diff ?
>
> Yes, sorry. Here it is.
>
> > > Any idea ? It could be related to running domUs, or vnd (the virtual
> > > disks are backed by files, so the domUs access their data though
> > > xbdback_xenbus -> vnd -> file in a ffs). I've a test box
> > > with the same XEN3_DOM0 kernel which didn't panic this way yet, but
> > > it's not running any domU.
> > >
> > > any idea ?
> >
> > Does this help?
> > http://www.netbsd.org/~cegger/xen_xbd.diff
>
> No. I'm already running with it. And the problem here is that the BC_BUSY
> flag is set when it should not, not the opposite.

Can you reproduce the panic *without* this patch ?

Christoph