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Peter Anvin" To: Dave Hansen , Ingo Molnar CC: "Kirill A. Shutemov" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Jonathan Corbet , Andy Lutomirski , Peter Zijlstra , Ard Biesheuvel , Jan Kiszka , Kieran Bingham , Michael Roth , Rick Edgecombe , Brijesh Singh , Sandipan Das , Juergen Gross , Tom Lendacky , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-efi@vger.kernel.org, linux-mm@kvack.org Subject: =?US-ASCII?Q?Re=3A_=5BPATCHv3_2/4=5D_x86/64/mm=3A_Make_SP?= =?US-ASCII?Q?ARSEMEM=5FVMEMMAP_the_only_memory_model?= User-Agent: K-9 Mail for Android In-Reply-To: <6c33159d-8e4f-474b-a60a-bfa95eca6042@intel.com> References: <20250516123306.3812286-1-kirill.shutemov@linux.intel.com> <20250516123306.3812286-3-kirill.shutemov@linux.intel.com> <30570ca0-8da4-4ebc-84d6-0a4badfb7154@intel.com> <6c33159d-8e4f-474b-a60a-bfa95eca6042@intel.com> Message-ID: <304EB2DB-3EB9-4D2E-8807-E170B9061A63@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: E501180007 X-Stat-Signature: boq3brtdsowxgfjhy576q9mqi9f4ddw3 X-Rspam-User: X-HE-Tag: 1747420128-230517 X-HE-Meta: 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 gv+Bbl9Y tI7g9eAw4bmuvG83AyUrYbfzftInD98YQMH2/5fh8uJZgX7by7tOcF1sqmiQMLoAUmbrR/DmPLMvasYU= 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 May 16, 2025 8:46:07 AM PDT, Dave Hansen wro= te: >On 5/16/25 08:35, Ingo Molnar wrote: >> =2Econfig=2Eopensuse=2Edefault: CONFIG_SPARSEMEM_VMEMMAP_ENABLE=3D= y >> =2Econfig=2Eubuntu=2Elocalinstall: CONFIG_SPARSEMEM_VMEMMAP_ENABLE=3D= y >> =2Econfig=2Efedora=2Egeneric: CONFIG_SPARSEMEM_VMEMMAP_ENABLE=3D= y >> =2Econfig=2Erhel=2Egeneric: CONFIG_SPARSEMEM_VMEMMAP_ENABLE=3D= y > >That reminds me=2E=2E=2E > >Does everybody keep their own local copies of these configs in their >environment? I do, and I refresh them periodically from the distros=2E I >assume everybody else is doing something similar=2E > >Is there a better way? What I do is keep a set of minimal configs which are the deltas from the d= efault=2E=20