Hello, On Thu, Apr 26, 2012 at 08:50:58AM +0800, Peter Teoh wrote: > Thanks for the reply. Just an educational question: is it possible > to set one-byte per memblock? And what is the minimum memblock > size? 1 byte. > Even if 2G memblock is a huge number, it still seemed like a bug to me > that there is no check on the maximum number (which is 2G) of this > variable (assuming signed int). Software can always purposely push > that number up and the system can panic? Yeah, if somebody messes the BIOS / firmware to oblivion. I don't really care at that point tho. memblock is a boot time memory allocator and it assumes BIOS / firmware isn't completely crazy. It uses contiguous tables to describe all the blocks, walks them one-by-one for allocation and even compacts them. Well before memblock fails from any of the above, the machine would be failing miserably in firmware / BIOS. Thanks. -- tejun -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>