On Wed, 11 Jun 2025 14:06:51 +0200 David Hildenbrand <da...@redhat.com> wrote:
> While working on improving vm_normal_page() and friends, I stumbled > over this issues: refcounted "normal" pages must not be marked > using pmd_special() / pud_special(). Why is this? > > ... > > I spent too much time trying to get the ndctl tests mentioned by Dan > running (.config tweaks, memmap= setup, ... ), without getting them to > pass even without these patches. Some SKIP, some FAIL, some sometimes > suddenly SKIP on first invocation, ... instructions unclear or the tests > are shaky. This is how far I got: I won't include this in the [0/N] - it doesn't seem helpful for future readers of the patchset. I'll give the patchset a run in mm-new, but it feels like some more baking is needed? The [1/N] has cc:stable but there's nothing in there to explain this decision. How does the issues affect userspace?