Re: Substantial COMPAT_LINUX changes in netbsd-5?

[Fredrik Pettai <pettai%nordu.net@localhost>]

On Jan 15, 2010, at 4:55 PM, Christos Zoulas wrote:
> In article <4B4F9CBC.8080102%nordu.net@localhost>,
> Fredrik Pettai  <pettai%nordu.net@localhost> wrote:
> > On 1/14/10 6:16 PM, Hauke Fath wrote:
> >
> > I also hit problems running the Veritas Netbackup client for Linux  
> > after
> > upgrading to netbsd-5 (from netbsd-4).
> >
> > > Any idea what changes in COMPAT_LINUX shipped with netbsd-5 might be
> > > responsible?
> >
> > [...]
> >
> > After that, we at least got a full backup to work, but the  
> > incremental
> > backups still fails. It doesn't feel stable ATM. I just noticed  
> > that the
> > df command seems to get "blocked" during a incremental backup try.
> >
> > -bash-4.0$ ktruss df
>
> I think that the namei changes that handle the emulated root could  
> be at
> fault here, or NFS. Have you tried using a loopback mount?

Loopback seems to work, but then again, we had problems running that.
So the hanging df seems to be COMPAT_LINUX + NFS related.

How can we help to find the cause so it can be fixed?

Regards,
/P