On Thu, Jan 7, 2021 at 2:31 PM Andrea Arcangeli <[email protected]> wrote: > > Random memory corruption will still silently materialize as result of > the speculative lookups in the above scenario.
Explain.
Yes, you'll get random memory corruption if you keep doing wrprotect()
without mmap_sem held for writing.
But I thought we agreed earlier that that is a bug. And I thought the
softdirty code already got it for writing.
Linus
