[Samba] Bringing up interface causes smbd to become unresponsive on that subnet

[Jeremy Allison]

On Mon, Apr 30, 2012 at 05:12:18PM -0400, Tony Markel wrote:
> This is a strange problem I can't seem to wrap my head around.
> 
> I have a server with 2 interfaces.  Samba is serving happily on one, and
> will remain on a single interface (eth0,  subnet A(/22), vlan 101).  I wish
> to bring up a second interface (eth1, subnet B(/24), vlan 102) that will be
> serving up nfs and ssh traffic only.  Currently, Samba will process
> requests from any computer on the public internet.
> 
> Now, before I bring up the second interface on subnet B, I modify my
> smb.conf to bind to eth0, and I speficy the netmasks of subnet A and B.
> 
> The problem is this:
> When I bring up eth1, subnet B cannot access the service.  When I take it
> down, normal service resumes.

What does "cannot access the service" mean ? How exactly does it fail ?