Re: [PATCH] kho: Prevent reuse of preserved pages after a reservation failure

From: Pasha Tatashin

Date: Wed Nov 11 2026 - 16:28:34 EST


On Tue, 10 Nov 2026 23:09:30 -0800, Chris Down <chris@xxxxxxxxxxxxxx> wrote:
> kho_preserved_memory_reserve() reserves each range of preserved memory
> in memblock and marks it noinit, but ignores both return values. Either
> can fail when memblock has to grow its reserved array and can't find
> room, which at this point in boot it may only take from KHO bootmem.
> The boot then goes on as if the range were reserved, and two things
> can follow:
>
> [...]

Reviewed-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>

--
Pasha