On 10/30/2014 11:06 AM, Johannes Weiner wrote: >> You're using that value as soon as you are passing it to a function, it >> > doesn't matter what happens inside that function. > It's copied as part of the pass-by-value protocol, but we really don't > do anything with it. So why does it matter? Because it's undefined behaviour, which gives your compiler a license to do whatever it wants? Thanks, Sasha -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>