Re: [PATCH V3 0/2] arm64/mm: Fix pfn_valid() for ZONE_DEVICE based memory

[Veronika Kabatova]

----- Original Message -----
> From: "Anshuman Khandual" <anshuman.khandual@xxxxxxx>
> To: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx
> Cc: "Catalin Marinas" <catalin.marinas@xxxxxxx>, "Will Deacon" <will@xxxxxxxxxx>, "Ard Biesheuvel" <ardb@xxxxxxxxxx>,
> "Mark Rutland" <mark.rutland@xxxxxxx>, "James Morse" <james.morse@xxxxxxx>, "Robin Murphy" <robin.murphy@xxxxxxx>,
> "Jérôme Glisse" <jglisse@xxxxxxxxxx>, "Dan Williams" <dan.j.williams@xxxxxxxxx>, "David Hildenbrand"
> <david@xxxxxxxxxx>, "Mike Rapoport" <rppt@xxxxxxxxxxxxx>, "Veronika Kabatova" <vkabatov@xxxxxxxxxx>
> Sent: Friday, March 5, 2021 6:38:14 AM
> Subject: Re: [PATCH V3 0/2] arm64/mm: Fix pfn_valid() for ZONE_DEVICE based memory
> 
> 
> On 3/5/21 10:54 AM, Anshuman Khandual wrote:
> > This series fixes pfn_valid() for ZONE_DEVICE based memory and also
> > improves
> > its performance for normal hotplug memory. While here, it also reorganizes
> > pfn_valid() on CONFIG_SPARSEMEM. This series is based on v5.12-rc1.
> > 
> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
> > Cc: Will Deacon <will@xxxxxxxxxx>
> > Cc: Ard Biesheuvel <ardb@xxxxxxxxxx>
> > Cc: Mark Rutland <mark.rutland@xxxxxxx>
> > Cc: James Morse <james.morse@xxxxxxx>
> > Cc: Robin Murphy <robin.murphy@xxxxxxx>
> > Cc: Jérôme Glisse <jglisse@xxxxxxxxxx>
> > Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
> > Cc: David Hildenbrand <david@xxxxxxxxxx>
> > Cc: Mike Rapoport <rppt@xxxxxxxxxxxxx>
> > Cc: Veronika Kabatova <vkabatov@xxxxxxxxxx>
> > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> > Cc: linux-mm@xxxxxxxxx
> > Cc: linux-kernel@xxxxxxxxxxxxxxx
> > 
> > Changes in V3:
> > 
> > - Validate the pfn before fetching mem_section with __pfn_to_section() in
> > [PATCH 2/2]
> 
> Hello Veronica,
> 
> Could you please help recreate the earlier failure [1] but with this
> series applies on v5.12-rc1. Thank you.
> 

Hello Anshuman,

the machine in question is currently loaned to a developer. I'll reach
out to them and will let you know once I have any results.


Veronika

> [1]
> https://lore.kernel.org/linux-arm-kernel/cki.8D1CB60FEC.K6NJMEFQPV@xxxxxxxxxx/
> 
> - Anshuman
> 
>