From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Qian Cai <cai@lca.pw>,
Anshuman Khandual <anshuman.khandual@arm.com>,
linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mike Rapoport <rppt@linux.ibm.com>,
Vineet Gupta <vgupta@synopsys.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
"Kirill A . Shutemov" <kirill@shutemov.name>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
linux-snps-arc@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org,
linux-riscv@lists.infradead.org, x86@kernel.org,
linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH V14] mm/debug: Add tests validating architecture page table helpers
Date: Wed, 26 Feb 2020 15:44:23 +0100 [thread overview]
Message-ID: <eb154054-68ab-a659-065b-f4f7dcbb8671@c-s.fr> (raw)
In-Reply-To: <1582726340.7365.124.camel@lca.pw>
Le 26/02/2020 à 15:12, Qian Cai a écrit :
> On Wed, 2020-02-26 at 09:09 -0500, Qian Cai wrote:
>> On Mon, 2020-02-17 at 08:47 +0530, Anshuman Khandual wrote:
>>
>> How useful is this that straightly crash the powerpc?
>
> And then generate warnings on arm64,
>
> [ 146.634626][ T1] debug_vm_pgtable: debug_vm_pgtable: Validating
> architecture page table helpers
> [ 146.643995][ T1] ------------[ cut here ]------------
> [ 146.649350][ T1] virt_to_phys used for non-linear address:
> (____ptrval____) (start_kernel+0x0/0x580)
Must be something wrong with the following in debug_vm_pgtable()
paddr = __pa(&start_kernel);
Is there any explaination why start_kernel() is not in linear memory on
ARM64 ?
Christophe
next prev parent reply other threads:[~2020-02-26 14:44 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-17 3:17 [PATCH V14] mm/debug: Add tests validating architecture page table helpers Anshuman Khandual
2020-02-24 1:58 ` Anshuman Khandual
2020-02-26 14:09 ` Qian Cai
2020-02-26 14:12 ` Qian Cai
2020-02-26 14:44 ` Christophe Leroy [this message]
2020-02-27 2:34 ` Anshuman Khandual
2020-02-27 4:03 ` Andrew Morton
2020-02-27 4:07 ` Anshuman Khandual
2020-02-26 14:45 ` Christophe Leroy
2020-02-26 15:51 ` Qian Cai
2020-03-02 19:40 ` Qian Cai
2020-03-03 5:55 ` Anshuman Khandual
2020-03-04 1:39 ` Qian Cai
2020-03-04 6:48 ` Christophe Leroy
2020-03-04 11:29 ` Qian Cai
2020-03-05 0:54 ` Anshuman Khandual
2020-03-05 5:43 ` Christophe Leroy
2020-03-05 6:23 ` Anshuman Khandual
2020-03-03 5:59 ` Christophe Leroy
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