[OpenAFS] IMPORTANT: Microsoft SMB Redirector (mrxsmb.sys) and OpenAFS for Windows

Michael Niksch nik@zurich.ibm.com
Sun, 06 Sep 2009 01:15:09 +0200

Based on the recommendation at the bottom of

> http://www.openafs.org/windows.html

I recently installed http://support.microsoft.com/kb/971421 on my 
Windows XP (32-bit) SP3 system. This fix installs mrxsmb.sys version 
5.1.2600.5815 dated 2009-05-18. I did this when upgrading to OpenAFS 
1.5.61, and I later upgraded to OpenAFS 1.5.62.

Without realizing a coincidence at first, I since had several strange 
experiences with my system.

(1) When waking up from hibernation, the system started to load the 
hibernation file, but then actually booted from scratch as if it had 
crashed while reactivating the saved state.

(2) Logging in a local (non-domain) user took extremely long.

(3) Today, I had a blue screen mentioning mrxsmb.sys.

I am not sure whether (1) and (2) are related to the hotfix, but (3) 
obviously is, so it might be worth keeping an eye on whether the fix 
provided by Microsoft and scheduled to be part of SP4 doesn't introduce 
new problems.

Michael Niksch                     /Zurich/IBM @ IBMCH
IBM Zurich Research Laboratory     nik@zurich.ibm.com
Saeumerstrasse 4                   http://www.zurich.ibm.com/~nik/
CH-8803 Rueschlikon / Switzerland  P: +41-44-724-8913 F: +41-44-724-8080