Hi Ivan, gc-7.2alpha6, built on HP-UX 11.00 with the vendor cc, fails 1 of 6 tests: Switched to incremental mode Emulating dirty bits with mprotect/signals Apparently failed to mark from some function arguments. Perhaps GC_push_regs was configured incorrectly? Test failed /bin/sh: 13551 Abort(coredump) FAIL: gctest This sounds worrying. Is it already known? Bruno