[OpenAFS] OpenAFS + Windows 7 (x64)

[Jeffrey Altman]

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On 4/22/2010 5:49 PM, Jason D. McCormick wrote:
> We're trying to deploy new workstations based on Windows 7 using OpenAF=
S
> (1.5.73) and Kerberos for Windows.  I was curious how/if people are get=
ting a
> working configuration for this setup.   We're encountering two major pr=
oblems
> that I was hoping someone on the list had already encountered and could=
 help
> out with.
>=20
> #1 - \\AFS UNC name doesn't function when making network transitions, n=
otably
> when using the Cisco VPN client but it also appears to die at other ran=
dom
> unrepeatable intervals (although this is during testing work).  It appe=
ars
> that while on certain network configurations (e.g. wired physically to =
the
> network) the \\AFS appears to work and is bound to the AFS loopback ada=
pter
> (10.254.254.254).  However unplugging the network and/or opening the VP=
N
> appear to cause some sort of network state transition that kills off th=
e
> mappings.  I found a reference to a similar problem
> (<http://mailman.mit.edu/pipermail/kerberos/2009-October/015364.html>) =
where
> Jeff said the bug is in Windows.  Does anyone know if there's a workaro=
und or
> hotfix since then?

There is no work around.  Microsoft has known about this bug since
September 2009.  More sites need to file bug reports on this issue with
Microsoft.  Until Microsoft is convinced that this is a serious problem
they are not going to make it a priority.  SP1 betas have already been
cut and if this bug is going to be fixed and added to SP1, they need to
hear from a broad range of OpenAFS using sites.

There really is nothing more that I can do until Microsoft decides the
problem is a serious problem for *their* customers.

> #2 - The Windows team is using folder redirection within profiles, but =
only
> selectively (e.g. Documents, Desktop, AppData).  However something with=
in the
> synchronization service seems to think that \\AFS should somehow be ava=
ilable
> offline.  We keep seeing explorer.exe routinely consume 50% or more of =
the CPU
> and it appears to be continuously trying to open
> C:\Windows\CSC\v2.0.6\namespace\afs even though we don't have the files=
ystem
> marked as being available offline.  Am I correct in understanding from =
the
> thread above
> (<http://mailman.mit.edu/pipermail/kerberos/2009-October/015364.html>)
> that this is also part of the SMB bug?

This is the AFS Explorer Shell extension attempting to perform AFS if
operations which are spinning due to the fact that the Netbios name
resolution is failing.   Its the same bug as above.

> If there's an implementation guide for Win7 I'm missing, please point
> it out.  Thanks.

There isn't one.   There is nothing different about installing on
Windows 7.  Microsoft has a bug and it must get fixed by Microsoft.  It
won't get fixed until enough end user sites report it.

Jeffrey Altman




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