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b=F2x4AZIvETZuTswgfkeOHnkgP5j/iV47PP07EQkqmBL9s+K6OVe8bb6kBrdcw6Pen zlEo7klNwkxdCSf6YBhEwzzm+AO0xa3E+EZg0itoUCZPOytvcbderUtMUDl4pTs5t6 srPasluXZ8Sp9zApk2v8seFMUk+PjFypnjRiXDicDb1RplKUjqjQetm8EYfSEvqA53 rDqAqNkEgz1aNSxK/MeIE/Ax+nrZkLjCbVBE/OxHTdx6rKzVFiscIjtvxZeCT770Pa t5j5khIrKUWesKiRhXErmr56Kke6x3kknpbZ1Z0hk9Ee7dDPZ/u88t9ONgQMT2ifsy uuRBaiONd0mSg== Message-ID: <003bbdb8-85ae-4e1a-9260-fb2a85fb9b3c@kernel.org> Date: Wed, 20 May 2026 23:59:08 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] x86/mm: fix vmemmap leak on memory hot-remove To: Dave Hansen , Juhyung Park Cc: linux-mm@kvack.org, stable@vger.kernel.org, Lu Baolu , Jason Gunthorpe , "Mike Rapoport (Microsoft)" , Oscar Salvador , Andrew Morton , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dan Williams , Dave Jiang , Vishal Verma , linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev References: <20260519151008.1399226-1-qkrwngud825@gmail.com> <9c0e3e53-d284-4675-89d8-943f93436e07@kernel.org> <78ef8003-9c86-4969-95b9-589127b30be2@intel.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 726E914000C X-Stat-Signature: j58ddu5q4rzwznaiuos83iettp3f6f6g X-Rspam-User: X-HE-Tag: 1779314357-901222 X-HE-Meta: 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 MWwBvdGz 4V1t8sXoXP6Elccqb1Sr04oe96l3iBwZvPFvkXfG0lGlTzLKLvzyd3HscMcDY6JyS4pKrP2bPrN3kEOk8YDsTebwva5gjFsX1hniCIeluamxPpK0exmc60ZKZ4saAk2amgUWQuMp7kVcK8i3xC3OFY7bReXGIfFu2RMtLQuu2Kf9l5O/avitwAFs5Yd0wFfH/WLexrMa0F/z/y6k889JUnaqOiPb7EidiAxWSLjryVKHWLnrtX2s2S38NwtbD2EjWVr4ojEDfnZeSAoQnUB9Y5w50SKmXzAbwI1Za Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 5/20/26 23:54, Dave Hansen wrote: > On 5/20/26 14:52, David Hildenbrand (Arm) wrote: >> On 5/20/26 12:33, Juhyung Park wrote: >>> Neat. Any sign of it getting merged? >> I hope it will catch the attention of more x86 maintainers soon 🙂 > > David, thanks a ton for that patch. It's in the queue behind a couple of > other things, but I'll definitely take a look. > > Attention caught, I promise! ;) No need to excuse ... my inbox is overflowing because of conferences and travel ... Note that I have more cleanups that are waiting for that fix (including, removing the order parameter from free_pagetable(), removing CONFIG_HAVE_BOOTMEM_INFO_NODE), so expect free_pagetable() and free_vmemmap_pages() getting cleaned up properly next. -- Cheers, David