On 04/29/2016 01:07 PM, Yu-cheng Yu wrote: > On Fri, Apr 29, 2016 at 01:03:43PM -0700, Dave Hansen wrote: >>> That's not feasible. Think of dynamic libraries or just-in-time >>> compilers. What instruction set does /usr/bin/java use, for >>> instance? :) > The java argument is true. In that case or when the bitmask is > missing, we can allocate for all supported features.
Remember, execve() doesn't replace the task_struct. How do we resize the task_struct at execve() time? If /bin/bash doesn't use AVX, then fork()s and execve()s an AVX-using program, what do we do?
