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[221.241.217.81]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a4985ff0f2sm2052278a91.8.2026.09.28.18.03.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Sep 2026 18:03:24 -0700 (PDT) Date: Tue, 29 Sep 2026 10:03:18 +0900 Message-ID: From: Hajime Tazaki To: johannes@sipsolutions.net Cc: linux-mm@kvack.org, liam@infradead.org, rbm@suse.com, akpm@linux-foundation.org, luto@amacapital.net, brendan.jackman@linux.dev, david@kernel.org, liuhangbin@gmail.com, corbet@lwn.net, kees@kernel.org, ljs@kernel.org, broonie@kernel.org, mhocko@suse.com, rppt@kernel.org, shuah@kernel.org, surenb@google.com, vbabka@kernel.org, wad@chromium.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-um@lists.infradead.org, geert@linux-m68k.org, daniel@thingy.jp Subject: Re: [PATCH v3 2/3] selftests: run tests on nommu architecture In-Reply-To: <04259a99ed91f8a527b255951a6f626310728170.camel@sipsolutions.net> References: <20260926010819.604346-1-thehajime@gmail.com> <20260926010819.604346-3-thehajime@gmail.com> <04259a99ed91f8a527b255951a6f626310728170.camel@sipsolutions.net> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/27.2 Mule/6.0 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Stat-Signature: piyj4iapg9nqgkwyjzj4t99hdftk7r48 X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 75398100003 X-HE-Tag: 1790643806-385927 X-HE-Meta: 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 dGR2exJV r2uqKzqNG/eSdFtm0teNv9I+8JDQQVgbZhHMxZ9u6FZMTvubNYD0HPc99kBjDbqx1HBuNQq6Gjs9V9qWdo4aZQCgl9Qa7xhkgfJjU1GxLMBBj94nbiqYt9nsnGELiypfyb+fYT6kcn//jm4ogUOjrdng6z7wFIe5eO3W1ex253vVuViQi91Gq2git611i/goPPqc+COGP6p3LiP4iq/1Hqxy/Km1Ekty+RVO7F7TOWwKfi3JenjjLcDegS7awZP1sr16fTn3+8G0EHaSwrBHB8ablBRq4FWa4RCmco/1NGnLBzTmBtZjba80G+WgiAzrG5m2wWAA5WMyauKvxOmNtqUZN90FW00yOcEP90Dxa5H9+ass= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 28 Sep 2026 16:44:49 +0900, Johannes Berg wrote: > > On Sat, 2026-09-26 at 10:08 +0900, Hajime Tazaki wrote: > > Architectures lacks MMU doesn't support fork(2) syscall and only > > nit: Architectures lacking MMU don't support the fork(2) syscall ... ah, thanks. will fix this line. > Not sure where this should be merged? I guess selftests would make most > sense, but you can't actually test it out before the UML nommu changes, > so that doesn't work too well right now? I think this can be used for other NOMMU architecture (riscv, arm, m68k) if those are properly build so, it isn't intended for UML only tests. -- Hajime