[Gc] Segmentation fault when embedding GC in Matlab (fwd)

Goffioul Michael goffioul at imec.be
Thu Aug 30 23:21:07 PDT 2007

> > This call returns a correct address when matlab is started 
> without the 
> > JVM, and -1 (0xFFFFFFFF) when matlab is started with the JVM.
> That explains the problem.  The collector can't get any 
> memory from the OS, even during startup.  This might happen 
> because in your environment the JVM grabs the address space 
> right above the sbrk heap, though I'm not sure.
> Things might work better if you build the collector with 
> USE_MMAP defined.  GC7 should largely avoid this problem by 
> trying both under the covers.

Compiling GC with USE_MMAP defined seems to solve that problem.


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