I checked in some ds_mem.c changes that should robustify vs overflow. Please try it out.
As to that special_mem_device call, I'm not sure exactly what I was thinking. The comment makes sense, but the code doesn't match. It looks like libstore uses size_t in place of dev_status_t, and so it will widen without sign extension and not cause a problem any more. But you still can't accurately represent it with a block size of 1, because the size of 4GB wraps around to 0. The code that would match this comment is: ~(vm_offset_t)0 - 3, 4, But I think it would work as well now to use: ~(vm_offset_t)0, 1, and this should let you try to access every address but the last byte. The ds_mem_map code explicitly lets you address the final partial page, so this should not be a problem in practice. _______________________________________________ Bug-hurd mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-hurd
