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X-CSE-ConnectionGUID: su/zc52zST+DLwDeKZN06g== X-CSE-MsgGUID: m7wVjcF4TRG2PbHHp30IUA== X-IronPort-AV: E=McAfee;i="6700,10204,11399"; a="44952556" X-IronPort-AV: E=Sophos;i="6.15,201,1739865600"; d="scan'208";a="44952556" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Apr 2025 10:12:17 -0700 X-CSE-ConnectionGUID: mi8o2LJPTq2WEbMiBYvzQQ== X-CSE-MsgGUID: i54YUDKXRgOeQ4aHOdozlw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,201,1739865600"; d="scan'208";a="129170078" Received: from sramkris-mobl1.amr.corp.intel.com (HELO [10.124.220.195]) ([10.124.220.195]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Apr 2025 10:12:14 -0700 Message-ID: Date: Wed, 9 Apr 2025 10:12:12 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 13/14] mm: Unpoison pcpu chunks with base address tag To: Maciej Wieczor-Retman Cc: hpa@zytor.com, hch@infradead.org, nick.desaulniers+lkml@gmail.com, kuan-ying.lee@canonical.com, masahiroy@kernel.org, samuel.holland@sifive.com, mingo@redhat.com, corbet@lwn.net, ryabinin.a.a@gmail.com, guoweikang.kernel@gmail.com, jpoimboe@kernel.org, ardb@kernel.org, vincenzo.frascino@arm.com, glider@google.com, kirill.shutemov@linux.intel.com, apopple@nvidia.com, samitolvanen@google.com, kaleshsingh@google.com, jgross@suse.com, andreyknvl@gmail.com, scott@os.amperecomputing.com, tony.luck@intel.com, dvyukov@google.com, pasha.tatashin@soleen.com, ziy@nvidia.com, broonie@kernel.org, gatlin.newhouse@gmail.com, jackmanb@google.com, wangkefeng.wang@huawei.com, thiago.bauermann@linaro.org, tglx@linutronix.de, kees@kernel.org, akpm@linux-foundation.org, jason.andryuk@amd.com, snovitoll@gmail.com, xin@zytor.com, jan.kiszka@siemens.com, bp@alien8.de, rppt@kernel.org, peterz@infradead.org, pankaj.gupta@amd.com, thuth@redhat.com, andriy.shevchenko@linux.intel.com, joel.granados@kernel.org, kbingham@kernel.org, nicolas@fjasle.eu, mark.rutland@arm.com, surenb@google.com, catalin.marinas@arm.com, morbo@google.com, justinstitt@google.com, ubizjak@gmail.com, jhubbard@nvidia.com, urezki@gmail.com, dave.hansen@linux.intel.com, bhe@redhat.com, luto@kernel.org, baohua@kernel.org, nathan@kernel.org, will@kernel.org, brgerst@gmail.com, llvm@lists.linux.dev, linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, x86@kernel.org References: <61033ef5b70277039ceeb8f6173e8b3fbc271c08.1743772053.git.maciej.wieczor-retman@intel.com> From: Dave Hansen Content-Language: en-US Autocrypt: addr=dave.hansen@intel.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 1AC99A000E X-Stat-Signature: 1e74px9bs16ned17c1d8jpikz9moqatf X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1744218738-409854 X-HE-Meta: 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 4/9/25 09:32, Maciej Wieczor-Retman wrote: > They don't seem to be virtuall contiguous. At least from testing on a live > system, QEMU and Simics I never saw any be contiguous. And I double checked > today too. But your version is nice, I'll just drop 2 and 3 and I think it still > will make sense, right? Yep, it still makes sense.