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Date: Sun, 2 Feb 2020 06:26:29 -0500
From: Qian Cai <cai@....pw>
To: Christophe Leroy <christophe.leroy@....fr>
Cc: Anshuman Khandual <Anshuman.Khandual@....com>, linux-mm@...ck.org,
Andrew Morton <akpm@...ux-foundation.org>,
Vlastimil Babka <vbabka@...e.cz>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Thomas Gleixner <tglx@...utronix.de>,
Mike Rapoport <rppt@...ux.vnet.ibm.com>,
Jason Gunthorpe <jgg@...pe.ca>,
Dan Williams <dan.j.williams@...el.com>,
Peter Zijlstra <peterz@...radead.org>,
Michal Hocko <mhocko@...nel.org>,
Mark Rutland <Mark.Rutland@....com>,
Mark Brown <broonie@...nel.org>,
Steven Price <Steven.Price@....com>,
Ard Biesheuvel <ard.biesheuvel@...aro.org>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Kees Cook <keescook@...omium.org>,
Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
Matthew Wilcox <willy@...radead.org>,
Sri Krishna chowdary <schowdary@...dia.com>,
Dave Hansen <dave.hansen@...el.com>,
Russell King - ARM Linux <linux@...linux.org.uk>,
Michael Ellerman <mpe@...erman.id.au>,
Paul Mackerras <paulus@...ba.org>,
Martin Schwidefsky <schwidefsky@...ibm.com>,
Heiko Carstens <heiko.carstens@...ibm.com>,
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Paul Burton <paul.burton@...s.com>,
Ralf Baechle <ralf@...ux-mips.org>,
"Kirill A . Shutemov" <kirill@...temov.name>,
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kasan-dev <kasan-dev@...glegroups.com>
Subject: Re: [PATCH V12] mm/debug: Add tests validating architecture page table helpers
> On Jan 30, 2020, at 9:13 AM, Christophe Leroy <christophe.leroy@....fr> wrote:
>
> config DEBUG_VM_PGTABLE
> bool "Debug arch page table for semantics compliance" if ARCH_HAS_DEBUG_VM_PGTABLE || EXPERT
> depends on MMU
> default 'n' if !ARCH_HAS_DEBUG_VM_PGTABLE
> default 'y' if DEBUG_VM
Does it really necessary to potentially force all bots to run this? Syzbot, kernel test robot etc? Does it ever pay off for all their machine times there?
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