Question about a UNIX error message

[Anemarie Hess]

I am at my witts end trying to track down an explaination for an
error message I keep getting from XENIX.  I am in the process of
porting a large security system from System V to Xenix 386 and the
programs keep crashing giving me a error 36 EIDRM Identifier Removed.
The explaination in the Xenix documentation indicates an exception
due to the removal of an identifier from the file system's name
space.  Please excuse my ignorance, but what exactly does that mean??
I have increased the number of allowable open files and inodes to
an unreasonably high level and this seen not to help.

Any leads, comments, or offers of help would be greatly appreciated...