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

From: Veronika Kabatova <vkabatov@redhat.com>
To: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	"Catalin Marinas" <catalin.marinas@arm.com>,
	"Will Deacon" <will@kernel.org>,
	"Ard Biesheuvel" <ardb@kernel.org>,
	"Mark Rutland" <mark.rutland@arm.com>,
	"James Morse" <james.morse@arm.com>,
	"Robin Murphy" <robin.murphy@arm.com>,
	"Jérôme Glisse" <jglisse@redhat.com>,
	"Dan Williams" <dan.j.williams@intel.com>,
	"David Hildenbrand" <david@redhat.com>,
	"Mike Rapoport" <rppt@linux.ibm.com>
Subject: Re: [PATCH V3 0/2] arm64/mm: Fix pfn_valid() for ZONE_DEVICE based memory
Date: Fri, 5 Mar 2021 07:28:40 -0500 (EST)	[thread overview]
Message-ID: <2001895867.30197818.1614947320141.JavaMail.zimbra@redhat.com> (raw)
In-Reply-To: <d7470949-0d9d-0863-f5d1-9391134a5e5e@arm.com>

----- Original Message -----
> From: "Anshuman Khandual" <anshuman.khandual@arm.com>
> To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
> Cc: "Catalin Marinas" <catalin.marinas@arm.com>, "Will Deacon" <will@kernel.org>, "Ard Biesheuvel" <ardb@kernel.org>,
> "Mark Rutland" <mark.rutland@arm.com>, "James Morse" <james.morse@arm.com>, "Robin Murphy" <robin.murphy@arm.com>,
> "Jérôme Glisse" <jglisse@redhat.com>, "Dan Williams" <dan.j.williams@intel.com>, "David Hildenbrand"
> <david@redhat.com>, "Mike Rapoport" <rppt@linux.ibm.com>, "Veronika Kabatova" <vkabatov@redhat.com>
> 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@arm.com>
> > Cc: Will Deacon <will@kernel.org>
> > Cc: Ard Biesheuvel <ardb@kernel.org>
> > Cc: Mark Rutland <mark.rutland@arm.com>
> > Cc: James Morse <james.morse@arm.com>
> > Cc: Robin Murphy <robin.murphy@arm.com>
> > Cc: Jérôme Glisse <jglisse@redhat.com>
> > Cc: Dan Williams <dan.j.williams@intel.com>
> > Cc: David Hildenbrand <david@redhat.com>
> > Cc: Mike Rapoport <rppt@linux.ibm.com>
> > Cc: Veronika Kabatova <vkabatov@redhat.com>
> > Cc: linux-arm-kernel@lists.infradead.org
> > Cc: linux-mm@kvack.org
> > Cc: linux-kernel@vger.kernel.org
> > 
> > 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@redhat.com/
> 
> - Anshuman
> 
> 

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