[plt-dev] JFYI OS X DrScheme core dump

At Wed, 12 Aug 2009 10:07:53 -0400, John Clements wrote:
> DrScheme dumped core during GC, here's the CrashReporter stacktrace,  
> ignore if not useful.

The trace includes

  1   org.plt-scheme.PLT_MrEd       	0x007385d5 cpointer_obj_MARK + 21

which is the GC tracing some pointer wrapped by the FFI. Were you
running some `scheme/foreign'-based code earlier? If so, my guess is
that it freed a C-level object without either clearing the associated
pointer object or ensuring that the object is inaccessible.