Displaying 1 result from an estimated 1 matches for "map_inherit_zero".
2020 Jul 07
0
[RFC]: mm,power: introduce MADV_WIPEONSUSPEND
...wiped? S2disk is an
> > async operation and it can happen at any time during the task execution.
> > So how does the application work to prevent from corrupted state - e.g.
> > when suspended between two memory loads?
>
> The usual trick when using MADV_WIPEONFORK, or BSD?s MAP_INHERIT_ZERO, is to
> store a guard variable in the page and to check the variable any time that
> random data is generated.
Well, MADV_WIPEONFORK is a completely different beast because the
forking is under a full control of the parent process and the
information about the fork can be forwarded to child...