From: Andrew Morton <akpm@linux-foundation.org>
To: Qian Cai <quic_qiancai@quicinc.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>,
David Hildenbrand <david@redhat.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Ard Biesheuvel <ardb@kernel.org>,
Linux Memory Management List <linux-mm@kvack.org>,
Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Stephen Rothwell <sfr@canb.auug.org.au>
Subject: Re: Arm64 crash while reading memory sysfs
Date: Wed, 26 May 2021 17:31:41 -0700 [thread overview]
Message-ID: <20210526173141.f1b511816fb33eab881e0c8f@linux-foundation.org> (raw)
In-Reply-To: <d55f915c-ad01-e729-1e29-b57d78257cbb@quicinc.com>
On Wed, 26 May 2021 20:16:14 -0400 Qian Cai <quic_qiancai@quicinc.com> wrote:
>
>
> On 5/26/2021 1:24 PM, Mike Rapoport wrote:
> > On Wed, May 26, 2021 at 12:09:14PM +0000, Qian Cai (QUIC) wrote:
> >>>
> >>> On Tue, May 25, 2021 at 03:25:59PM +0000, Qian Cai (QUIC) wrote:
> >>>> Reverting the patchset "arm64: drop pfn_valid_within() and simplify pfn_valid()" [1] from today's linux-next fixed a crash while
> >>> reading files under /sys/devices/system/memory.
> >
> > Does the issue persist of you only revert the latest patch in the series?
> > In next-20210525 it would be commit
> > 89fb47db72f2 ("arm64-drop-pfn_valid_within-and-simplify-pfn_valid-fix")
> > and commit
> > dfe215e9bac2 ("arm64: drop pfn_valid_within() and simplify pfn_valid()").
>
> Reverting those two commits alone is enough to fix the issue.
(cc Stephen)
Thanks, I'll drop
arm64-drop-pfn_valid_within-and-simplify-pfn_valid.patch
arm64-drop-pfn_valid_within-and-simplify-pfn_valid-fix.patch
next prev parent reply other threads:[~2021-05-27 0:31 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-25 15:25 Arm64 crash while reading memory sysfs Qian Cai (QUIC)
2021-05-25 15:37 ` David Hildenbrand
2021-05-26 6:40 ` Mike Rapoport
2021-05-26 12:09 ` Qian Cai (QUIC)
2021-05-26 13:04 ` Catalin Marinas
2021-05-26 17:25 ` Mike Rapoport
2021-05-26 17:24 ` Mike Rapoport
2021-05-27 0:16 ` Qian Cai
2021-05-27 0:31 ` Andrew Morton [this message]
2021-05-27 7:25 ` Stephen Rothwell
2021-05-27 8:56 ` Mike Rapoport
2021-05-27 14:33 ` Qian Cai
2021-05-27 16:22 ` Mike Rapoport
2021-05-27 17:00 ` Qian Cai
2021-05-27 17:12 ` David Hildenbrand
2021-05-27 17:50 ` Catalin Marinas
2021-05-27 22:56 ` Andrew Morton
2021-05-28 5:13 ` Mike Rapoport
2021-06-08 7:06 ` Anshuman Khandual
2021-06-14 8:25 ` Mike Rapoport
2021-06-15 0:13 ` Andrew Morton
2021-06-15 6:05 ` Mike Rapoport
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