On 08.09.25 17:16, Mark Brown wrote:

On Mon, Sep 01, 2025 at 05:03:40PM +0200, David Hildenbrand wrote:

quoted

We can just cleanup the code by calculating the #refs earlier,
so we can just inline what remains of record_subpages().

Calculate the number of references/pages ahead of times, and record them
only once all our tests passed.

I'm seeing failures in kselftest-mm in -next on at least Raspberry Pi 4
and Orion O6 which bisect to this patch.  I'm seeing a NULL pointer
dereference during the GUP test (which isn't actually doing anything as
I'm just using a standard defconfig rather than one with the mm
fragment):

On which -next label are you on? next-20250908 should no longer have 
that commit.

-- 
Cheers

David / dhildenb