On Wed, Jan 26, 2022 at 1:45 AM David Rientjes <rientjes@xxxxxxxxxx> wrote: > > On Wed, 26 Jan 2022, Pasha Tatashin wrote: > > > syzbot detected a case where the page table counters were not properly > > updated. > > > > Is there a Reported-by tag that syzbot wants us to use to track this? Google internal syzbot found it, so I did not add Reported-by as there is no public e-mail to reference. However, I added all the necessary steps to repro this problem to the cover letter. > > > This looks right, I'm wondering if we want to add a > mmap_assert_write_locked(mm) to collapse_and_free_pmd(). Good idea, I will add it in the next revision. Thanks, Pasha