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From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Anshuman Khandual <anshuman.khandual@arm.com>, linux-mm@kvack.org
Cc: linux-doc@vger.kernel.org,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Paul Mackerras <paulus@samba.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	linux-riscv@lists.infradead.org, Will Deacon <will@kernel.org>,
	linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
	Jonathan Corbet <corbet@lwn.net>,
	Michael Ellerman <mpe@ellerman.id.au>,
	x86@kernel.org, Mike Rapoport <rppt@linux.ibm.com>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Ingo Molnar <mingo@redhat.com>,
	linux-arm-kernel@lists.infradead.org, ziy@nvidia.com,
	Catalin Marinas <catalin.marinas@arm.com>,
	linux-snps-arc@lists.infradead.org,
	Vasily Gorbik <gor@linux.ibm.com>, Borislav Petkov <bp@alien8.de>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	"Kirill A . Shutemov" <kirill@shutemov.name>,
	Thomas Gleixner <tglx@linutronix.de>,
	gerald.schaefer@de.ibm.com, christophe.leroy@c-s.fr,
	Vineet Gupta <vgupta@synopsys.com>,
	linux-kernel@vger.kernel.org, Palmer Dabbelt <palmer@dabbelt.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH V3 0/4] mm/debug_vm_pgtable: Add some more tests
Date: Sat, 27 Jun 2020 10:17:27 +0200
Message-ID: <0ed75013-6ac4-3902-391a-1f7152510c6d@csgroup.eu> (raw)
In-Reply-To: <70ddc7dd-b688-b73e-642a-6363178c8cdd@arm.com>



Le 24/06/2020 à 05:13, Anshuman Khandual a écrit :
> 
> 
> On 06/15/2020 09:07 AM, Anshuman Khandual wrote:
>> This series adds some more arch page table helper validation tests which
>> are related to core and advanced memory functions. This also creates a
>> documentation, enlisting expected semantics for all page table helpers as
>> suggested by Mike Rapoport previously (https://lkml.org/lkml/2020/1/30/40).
>>
>> There are many TRANSPARENT_HUGEPAGE and ARCH_HAS_TRANSPARENT_HUGEPAGE_PUD
>> ifdefs scattered across the test. But consolidating all the fallback stubs
>> is not very straight forward because ARCH_HAS_TRANSPARENT_HUGEPAGE_PUD is
>> not explicitly dependent on ARCH_HAS_TRANSPARENT_HUGEPAGE.
>>
>> Tested on arm64, x86 platforms but only build tested on all other enabled
>> platforms through ARCH_HAS_DEBUG_VM_PGTABLE i.e powerpc, arc, s390. The
>> following failure on arm64 still exists which was mentioned previously. It
>> will be fixed with the upcoming THP migration on arm64 enablement series.
>>
>> WARNING .... mm/debug_vm_pgtable.c:860 debug_vm_pgtable+0x940/0xa54
>> WARN_ON(!pmd_present(pmd_mkinvalid(pmd_mkhuge(pmd))))
>>
>> This series is based on v5.8-rc1.
>>
>> Changes in V3:
>>
>> - Replaced HAVE_ARCH_SOFT_DIRTY with MEM_SOFT_DIRTY
>> - Added HAVE_ARCH_HUGE_VMAP checks in pxx_huge_tests() per Gerald
>> - Updated documentation for pmd_thp_tests() per Zi Yan
>> - Replaced READ_ONCE() with huge_ptep_get() per Gerald
>> - Added pte_mkhuge() and masking with PMD_MASK per Gerald
>> - Replaced pte_same() with holding pfn check in pxx_swap_tests()
>> - Added documentation for all (#ifdef #else #endif) per Gerald
>> - Updated pmd_protnone_tests() per Gerald
>> - Updated HugeTLB PTE creation in hugetlb_advanced_tests() per Gerald
>> - Replaced [pmd|pud]_mknotpresent() with [pmd|pud]_mkinvalid()
>> - Added has_transparent_hugepage() check for PMD and PUD tests
>> - Added a patch which debug prints all individual tests being executed
>> - Updated documentation for renamed [pmd|pud]_mkinvalid() helpers
> 
> Hello Gerald/Christophe/Vineet,
> 
> It would be really great if you could give this series a quick test
> on s390/ppc/arc platforms respectively. Thank you.
> 

Running ok on powerpc 8xx after fixing build failures.

Christophe

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  parent reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-15  3:37 Anshuman Khandual
2020-06-15  3:37 ` [PATCH V3 1/4] mm/debug_vm_pgtable: Add tests validating arch helpers for core MM features Anshuman Khandual
2020-06-15  3:37 ` [PATCH V3 2/4] mm/debug_vm_pgtable: Add tests validating advanced arch page table helpers Anshuman Khandual
2020-06-27  7:18   ` Christophe Leroy
2020-06-29  8:09     ` Anshuman Khandual
2020-06-27  7:26   ` Christophe Leroy
2020-06-29  8:15     ` Anshuman Khandual
2020-06-15  3:37 ` [PATCH V3 3/4] mm/debug_vm_pgtable: Add debug prints for individual tests Anshuman Khandual
2020-06-15  3:37 ` [PATCH V3 4/4] Documentation/mm: Add descriptions for arch page table helpers Anshuman Khandual
2020-06-17 10:01   ` Mike Rapoport
2020-06-24  3:13 ` [PATCH V3 0/4] mm/debug_vm_pgtable: Add some more tests Anshuman Khandual
2020-06-24 11:05   ` Alexander Gordeev
2020-06-24 11:48     ` Gerald Schaefer
2020-06-24 14:40       ` Alexander Gordeev
2020-06-29  8:32         ` Anshuman Khandual
2020-06-27  8:17   ` Christophe Leroy [this message]
2020-06-30  3:53   ` Anshuman Khandual
2020-06-30 21:32     ` Vineet Gupta
2020-07-03  3:59       ` Anshuman Khandual

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