I've discovered this recently with various versions of the AppleShare 2 client (as found in your version of System 6, and hackable onto older versions of the Mac OS). It is a new problem to me. For many years I have used System 6 and earlier clients to talk to different AppleShare servers (Mac OS 9.x, Windows 2000 Server SFM, Server 2003 SFM) without problem.
After installing bigger disks in various servers, I have experienced unimplemented trap errors on the same clients. The server is detected in the Chooser, a selection of shared volumes are offered, but the Mac crashes when one is selected. I suspect that this is because the free space or volume size is too large for the AppleShare 2 client implementation on System 6. I have not experienced problems when using System 7.1 with the same servers.
More investigation is required -- I haven't tried System 7.0 and the possible AppleShare client options, for example. If anyone wishes to experiment, contact me for a chat.
After installing bigger disks in various servers, I have experienced unimplemented trap errors on the same clients. The server is detected in the Chooser, a selection of shared volumes are offered, but the Mac crashes when one is selected. I suspect that this is because the free space or volume size is too large for the AppleShare 2 client implementation on System 6. I have not experienced problems when using System 7.1 with the same servers.
More investigation is required -- I haven't tried System 7.0 and the possible AppleShare client options, for example. If anyone wishes to experiment, contact me for a chat.