On Wed 27-06-18 13:29:05, Richard Weinberger wrote: > On Wed, Jun 27, 2018 at 11:34 AM, Jefferson Carpenter > <jeffersoncarpent...@gmail.com> wrote: > > Is there a way for a user process to mark memory as 'sensitive' or > > 'non-sensitive' when it is allocated? That could allow it not to have to be > > zeroed before being allocated to another process. > > Isn't this what we have Meltdown and Spectre for? ;-) > > No, memory from the kernel is always zeroed. > libc offers malloc() and calloc() for this purpose.
Well, except for the weird MAP_UNINITIALIZED. Anyway agreed that this is a bad idea and the flag should have never been merged. I've just mentioned it for completness. -- Michal Hocko SUSE Labs
