Heard of this?

[Stephen Sanders]

I'm tracking what I believe to be a bug in 32 bit compat5x.

The situation is as follows:

6.3 amd64 FreeBSD running 32 bit FreeBSD 5.3 applications.  On fairly
random intervals, applications core drop in open(), fopen(), and kill()
in the 32 bit compat5x layer.  The core usually occur during process
startup.

A) Does this sound familiar.
B) Is there a specific place in the source tree to look for compat5x?

Thanks.