On Thu, Oct 14, 2004 at 04:59:01PM +0200, Bauer, Christoph wrote: > > > > t = alloc_tuple( 100 ); > > > for( i=0 ; i < 100; ++i ) > > > Store_field( t, i, Int_val ( i )); > > > > s/Int_val/Val_int/ > > > Ok, that's correct. But the problem is before the for-loop. It looks correct to me, but often memory corruption happens earlier than is detected. Try adding a call to Gc.full_major () just before you call your C function. If it crashes in the Gc, then you've got memory corruption, and you'll need to pepper your code with calls to Gc.full_major () to try and narrow it down. Hope that helps anyway, Rich. -- Richard Jones. http://www.annexia.org/ http://www.j-london.com/ Merjis Ltd. http://www.merjis.com/ - improving website return on investment Learning Objective CAML for C, C++, Perl and Java programmers: http://www.merjis.com/richj/computers/ocaml/tutorial/