[Unionfs] Error using NFS over UnionFS

[Josef Sipek]

On Thu, Mar 30, 2006 at 03:27:10PM +0200, Alfonso wrote:
> Hello everybody!
> 
> I am using UnionFS so merging two directories (a read only and a writeable
> one) and exporting it with NFS to a lessdisks terminal. At the begining, the
> terminal boots fine, without any problem. I can create/modify any
> file/directory. The modifications are saved in the writeable directory on
> the server.  The problem is that when I try any apt-get install large enough
> (like apt-get install xfce4) on the client the kernel server gets an error
> and the NFS server crashes.

apt-get is know to be broken by/break unionfs. It's probably mmap
related. I'm tempted to say that you should try Shaya's mmap patch which
has been in CVS for some number of days. But you'll need 2.6.16 kernel.

I'll look at it some more later on.

Jeff.