malloc() problem on sysv386

[Paul Moore]

I've recently had this error occuring when malloc is called running an
application on ISC SVR3.2 (observed from the sdb debugger):

   memory fault (11) (sig 11)

The man page for signal(3) indicates that this is a segmentation violation. 

The problem only occurs when malloc() had been previously called in the code
execution path; it doesn't appear when this code path isn't executed.

The problem doesn't appear at all when I run the very same application on
Ultrix.

Any ideas, anyone?

- Paul