I’m collecting errors on a new platform! This is from Mac OS X 10.3. I’ve gotten the debugger up and am far enough to see that the error happens when the program tries to create a big (512k) chunk of shared memory. Smaller chunks work.
In 10.2 I had upped the shared memory from 4MB to 256MB in
/System/Library/StartupItems/SystemTuning/SystemTuning, but that no longer works.