[OpenAFS] problems on windows 1.5.1302 - network path was not found

[Jeffrey Altman]

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Lars Schimmer wrote:
> Hi!
> 
> We´ve got some problems with our Cell with windows client of OpenAFS.
> On my laptop windows XP SP2 I installed 1.5.1302 of OpenAFS and mostly
> it works.
> But from time to time, I could grab a token and I could access the main
> path of our cell.
> EG I mapped \\AFS\cgv.tugraz.at\ to Z: and \\AFS\.cgv.tugraz.at to Y:
> No I open the explorer and I could access Z:, but while trying to access
> Y: or ANY directory under Z: I get a "The network path was not found" error.
> Even restart the OpenAFS service doesn´t resolv the problem.
> With other linux clients I get no problem in the time.
> I captured the events with the process monitor from sysinternals, if
> someone wants to see that.

You can file a bug report at openafs-bugs@openafs.org with that
information.  YOu need to file both the file system events as captured
with procmon or filemon AND the matching AFS debug events as captured
with DebugView.  (See the release notes debugging section.)   When both
sets of data are logged with millisecond clock time it is possible to
synchronize the logs.

Note that "network path not found" does not mean that communication with
the file servers doesn't work.  It more often means that Windows is
timing out the connection to the AFS SMB server, tearing it down, and
waiting for a while, and reconnecting.  In that period of "waiting for
a while" you get "network path not found" errors and "NET USE" will
report paths to \\AFS as disconnected.

This problem is the primary reason why OpenAFS must get a native file
system implementation.

> btw: we need to disable the OpenAFS context menu, as it still waits for
> a timeout on files not in OpenAFS path.

Very simply.  I can't fix something I can't replicate.   The problem is
going to be an issue with the pioctl calls.  In the release notes is a
section on debugging pioctl calls.  You should be seeing exactly the
same sort of delays for "fs whereis <localpath>".  If you are seeing a
large number of disconnects from the \\AFS service that would be a
good explanation for the delays using the explorer shell.  The extension
has to talk to the afs client service.  If it can't, it will have to
wait until it can.

If you can provide me remote access to a system that experiences the
problem with the sysinternals procmon and dbgview installed and the
Windows Debugger installed, it would make it much easier for me to
figure out what about your environment is interfering.

Jeffrey Altman


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