Unity Migration Blog

The "UNC Path Filter" setting under "Novell Client Configuration" --> "Advanced Settings" can cause your machine to BSOD if set to "On" and you manipulate files and directories via DFS.

Novell's description of the "UNC Path Filter" setting:

Enables/disables the UNC Path Filter. Filters requests for UNC path resolution sent to the Client for Microsoft Networks (Microsoft Redirector). When enabled, UNC path queries sent to the Microsoft Redirector will first be filtered by the Novell Client to see if the server name is known by the Novell Client. If it is known, then a name resolve will not be attempted by the Microsoft Redirector. If the server name is not known, then the usual name resolution process will occur. This can dramatically increase the speed of network file operations and resource mappings.

This has happened to me on 2 different machines. Here's the configuration:

-Machine is a member of the UNITY domain.
-Novell Client is installed. The problem happened with both 4.91 SP3 and 4.01 SP4.
-UNC Path Filter is set to On.
-Drive is mapped to a DFS path.

Create a directory somewhere in DFS. Rename it. BSOD probably occurs.

The BSOD doesn't occur when using the same configuration but mapping to the underlying share path instead of to DFS.