Re: [syzbot] [kernel?] linux-next test error: WARNING: locking bug in change_page_attr_set_clr

From: Borislav Petkov

Date: Tue Jul 21 2026 - 09:59:08 EST


On Tue, Jul 21, 2026 at 01:39:45PM +0100, Lorenzo Stoakes (ARM) wrote:
> OK so this is a screw up with merging.
>
> Two fixes are applied at once here and they are NOT compatible :)
>
> Denis's ([0]) holds a spin lock over the operation during which an older
> revision of mine ([1] - current, probable next revision [2]) tries to take a
> sleeping mmap lock, hence the report.

Lemme guess: if those were merged by the same tree - tip - where arch/x86/
changes belong, we would've caught it, right?

Pff.

--
Regards/Gruss,
Boris.

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