On Wed, Aug 07, 2024 at 02:44:54PM -0700, Andrew Morton wrote:
> On Wed, 7 Aug 2024 17:34:10 -0400 Peter Xu wrote:
>
> > The problem is mprotect() will skip the dax 1G PUD while it shouldn't;
> > meanwhile it'll dump some bad PUD in dmesg. Both of them look like (corner
> > case) bugs to me.. wh
On Wed, Aug 07, 2024 at 02:23:16PM -0700, Andrew Morton wrote:
> On Wed, 7 Aug 2024 15:48:04 -0400 Peter Xu wrote:
>
> >
> > Tests
> > =
> >
> > What I did test:
> >
> > - cross-build tests that I normally cover [1]
> >
> > - smoke tested on x86_64 the simplest program [2] on dev_dax 1G
On Wed, 7 Aug 2024 17:34:10 -0400 Peter Xu wrote:
> The problem is mprotect() will skip the dax 1G PUD while it shouldn't;
> meanwhile it'll dump some bad PUD in dmesg. Both of them look like (corner
> case) bugs to me.. where:
>
> - skipping the 1G pud means mprotect() will succeed even if t
On Wed, Aug 07, 2024 at 02:17:03PM -0700, Andrew Morton wrote:
> On Wed, 7 Aug 2024 15:48:04 -0400 Peter Xu wrote:
>
> >
> > Dax supports pud pages for a while, but mprotect on puds was missing since
> > the start. This series tries to fix that by providing pud handling in
> > mprotect(). The
On Wed, 7 Aug 2024 15:48:04 -0400 Peter Xu wrote:
>
> Tests
> =
>
> What I did test:
>
> - cross-build tests that I normally cover [1]
>
> - smoke tested on x86_64 the simplest program [2] on dev_dax 1G PUD
> mprotect() using QEMU's nvdimm emulations [3] and ndctl to create
> namespa
On Wed, 7 Aug 2024 15:48:04 -0400 Peter Xu wrote:
>
> Dax supports pud pages for a while, but mprotect on puds was missing since
> the start. This series tries to fix that by providing pud handling in
> mprotect(). The goal is to add more types of pud mappings like hugetlb or
> pfnmaps. This
[Based on mm-unstable, commit 98808d08fc0f, Aug 7th]
v4:
- Added tags
- Dropped patch "mm/mprotect: Remove NUMA_HUGE_PTE_UPDATES" [DavidH]
- Touched up comment in pgtable_split_needed() [James]
v1: https://lore.kernel.org/r/20240621142504.1940209-1-pet...@redhat.com
v2: https://lore.kernel.org/r/
