[OpenAFS] win7 hangs during login at "welcome" - afs related?

[Dave B]

Unless procdump can remotely connect to a machine, procdump won't be too
useful. I did apply a hack to one machine to allow multiple simultaneous
logins, but of course, have not so far been able to get the hang to
happen on that machine while I've had a second login session going.

On Wed, 2010-06-09 at 10:11 -0400, Jeffrey Altman wrote:
> David:
> 
> As you are aware, 1.5.65 will not work properly with cross-realm
> Kerberos logons on Windows 7.  This wasn't fixed until 1.5.74.
> 
> However, if mpnotify.exe is never executed the network provider
> is never called.  Therefore, the problem is unlikely to be related
> to either afslogon.dll or kfwlogon.dll.  Use Sysinternals procdump
> to capture a dump file with heap for winlogon.exe and ask Microsoft
> Support to analyze it.
> 
> Jeffrey Altman
> 
> 
> On 6/9/2010 9:50 AM, Dave B wrote:
> > Anyone else seen this have any thoughts?
> > 
> > This is one of those annoying can't reproduce on command might happen
> > many times in a day then not for a couple of weeks type of bugs.
> > 
> > I don't know that this issue is afs related but am being asked to
> > investigate that possibility. We have had both oafs 1.5.65 and oafs
> > 1.5.74 on Windows 7, both 32 and 64-bit. Win7 machines in a domain,
> > cross realm MIT Kerberos login (except for the Administrative user).
> > Integrated login attempted.
> > 
> > After putting in the username and password, sometimes the machine will
> > "hang" at the "Welcome" message (the little blue wheel keeps spinning). 
> > 
> > If the hang involves a cross realm Kerberos user, pslist -t \\machine
> > does not show a mpnotify or krbcc32s running as subprocesses of the
> > logonui process. Process auditing would appear to show that mpnotify
> > never fired off. I can pskill logonui and get back to the ctrl-alt-del
> > login screen but the computer will just hang, again (a reboot by
> > pressing the reset button seems to fix it for a while).
> > 
> > If the hang has involved Administrator (not in MIT Kerberos) in the
> > domain, pslist -t \\machine *does* show mpnotify and krbcc32s both
> > running.
> > 
> > I've turned on both the afsd_service TraceOption and the Microsoft user
> > profile logging... nothing was ever logged in the log files, at least
> > when a MIT cross realm Kerberos user was involved. I have not
> > specifically managed to have both logging and an Administrator hang
> > happen yet, as I can't reproduce this on command.
> > 
> > Thoughts on where the issue might be and things to check out?
> > 
> > thanks!
> > 
> > 
> 
-- 
********************************
David William Botsch
Programmer/Analyst
CNF Computing
botsch@cnf.cornell.edu
********************************