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b=JxC+ZLDgIXwuH9JuHUjDWYdggID9/dxMCsywLopj9ykUTKnr1KkuuBzBnTLeqXQZJ qJxq93cUryMnIbJXZWxWajUaQtUBBDoK0VmlOxhhzu73ZLFfqGzRtgcpAWdX+aHqBd 6kWfpY6t3+aaB6wbZwLIdKuZNOmeEKx8F6ttyANmRUxkNSXTdTLFJVq55VtEiMQpjk k7YZwBbwoCFRrZ3ZgODKjjLBbWQDj13Z2laqRZ7yWx3kO9eBwm7h/uye09H9s/f5Rx GfoHgz317VhnsBc57u32V6NNc/WPfUuRNEjyeuAMO8Ik6dRI41dVFjFkilis8GKYQh O+Lxf3BIw5M5w== Message-ID: <22bae03a-1a7e-41f4-8012-a511c173400d@kernel.org> Date: Fri, 10 Jul 2026 10:16:12 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH V3] mm: Standardize printing for pgtable entries To: Andrew Morton , Anshuman Khandual Cc: linux-mm@kvack.org, andriy.shevchenko@linux.intel.com, usama.arif@linux.dev, hughd@google.com, willy@infradead.org, ryan.roberts@arm.com, linux-kernel@vger.kernel.org References: <20260709044334.1741263-1-anshuman.khandual@arm.com> <20260709170816.4e876a16eef9a93f41bb1940@linux-foundation.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzS5EYXZpZCBIaWxk ZW5icmFuZCAoQ3VycmVudCkgPGRhdmlkQGtlcm5lbC5vcmc+wsGQBBMBCAA6AhsDBQkmWAik AgsJBBUKCQgCFgICHgUCF4AWIQQb2cqtc1xMOkYN/MpN3hD3AP+DWgUCaYJt/AIZAQAKCRBN 3hD3AP+DWriiD/9BLGEKG+N8L2AXhikJg6YmXom9ytRwPqDgpHpVg2xdhopoWdMRXjzOrIKD g4LSnFaKneQD0hZhoArEeamG5tyo32xoRsPwkbpIzL0OKSZ8G6mVbFGpjmyDLQCAxteXCLXz ZI0VbsuJKelYnKcXWOIndOrNRvE5eoOfTt2XfBnAapxMYY2IsV+qaUXlO63GgfIOg8RBaj7x 3NxkI3rV0SHhI4GU9K6jCvGghxeS1QX6L/XI9mfAYaIwGy5B68kF26piAVYv/QZDEVIpo3t7 /fjSpxKT8plJH6rhhR0epy8dWRHk3qT5tk2P85twasdloWtkMZ7FsCJRKWscm1BLpsDn6EQ4 jeMHECiY9kGKKi8dQpv3FRyo2QApZ49NNDbwcR0ZndK0XFo15iH708H5Qja/8TuXCwnPWAcJ DQoNIDFyaxe26Rx3ZwUkRALa3iPcVjE0//TrQ4KnFf+lMBSrS33xDDBfevW9+Dk6IISmDH1R HFq2jpkN+FX/PE8eVhV68B2DsAPZ5rUwyCKUXPTJ/irrCCmAAb5Jpv11S7hUSpqtM/6oVESC 3z/7CzrVtRODzLtNgV4r5EI+wAv/3PgJLlMwgJM90Fb3CB2IgbxhjvmB1WNdvXACVydx55V7 LPPKodSTF29rlnQAf9HLgCphuuSrrPn5VQDaYZl4N/7zc2wcWM7BTQRVy5+RARAA59fefSDR 9nMGCb9LbMX+TFAoIQo/wgP5XPyzLYakO+94GrgfZjfhdaxPXMsl2+o8jhp/hlIzG56taNdt VZtPp3ih1AgbR8rHgXw1xwOpuAd5lE1qNd54ndHuADO9a9A0vPimIes78Hi1/yy+ZEEvRkHk /kDa6F3AtTc1m4rbbOk2fiKzzsE9YXweFjQvl9p+AMw6qd/iC4lUk9g0+FQXNdRs+o4o6Qvy iOQJfGQ4UcBuOy1IrkJrd8qq5jet1fcM2j4QvsW8CLDWZS1L7kZ5gT5EycMKxUWb8LuRjxzZ 3QY1aQH2kkzn6acigU3HLtgFyV1gBNV44ehjgvJpRY2cC8VhanTx0dZ9mj1YKIky5N+C0f21 zvntBqcxV0+3p8MrxRRcgEtDZNav+xAoT3G0W4SahAaUTWXpsZoOecwtxi74CyneQNPTDjNg azHmvpdBVEfj7k3p4dmJp5i0U66Onmf6mMFpArvBRSMOKU9DlAzMi4IvhiNWjKVaIE2Se9BY FdKVAJaZq85P2y20ZBd08ILnKcj7XKZkLU5FkoA0udEBvQ0f9QLNyyy3DZMCQWcwRuj1m73D sq8DEFBdZ5eEkj1dCyx+t/ga6x2rHyc8Sl86oK1tvAkwBNsfKou3v+jP/l14a7DGBvrmlYjO 59o3t6inu6H7pt7OL6u6BQj7DoMAEQEAAcLBfAQYAQgAJgIbDBYhBBvZyq1zXEw6Rg38yk3e EPcA/4NaBQJonNqrBQkmWAihAAoJEE3eEPcA/4NaKtMQALAJ8PzprBEXbXcEXwDKQu+P/vts IfUb1UNMfMV76BicGa5NCZnJNQASDP/+bFg6O3gx5NbhHHPeaWz/VxlOmYHokHodOvtL0WCC 8A5PEP8tOk6029Z+J+xUcMrJClNVFpzVvOpb1lCbhjwAV465Hy+NUSbbUiRxdzNQtLtgZzOV Zw7jxUCs4UUZLQTCuBpFgb15bBxYZ/BL9MbzxPxvfUQIPbnzQMcqtpUs21CMK2PdfCh5c4gS sDci6D5/ZIBw94UQWmGpM/O1ilGXde2ZzzGYl64glmccD8e87OnEgKnH3FbnJnT4iJchtSvx yJNi1+t0+qDti4m88+/9IuPqCKb6Stl+s2dnLtJNrjXBGJtsQG/sRpqsJz5x1/2nPJSRMsx9 5YfqbdrJSOFXDzZ8/r82HgQEtUvlSXNaXCa95ez0UkOG7+bDm2b3s0XahBQeLVCH0mw3RAQg r7xDAYKIrAwfHHmMTnBQDPJwVqxJjVNr7yBic4yfzVWGCGNE4DnOW0vcIeoyhy9vnIa3w1uZ 3iyY2Nsd7JxfKu1PRhCGwXzRw5TlfEsoRI7V9A8isUCoqE2Dzh3FvYHVeX4Us+bRL/oqareJ CIFqgYMyvHj7Q06kTKmauOe4Nf0l0qEkIuIzfoLJ3qr5UyXc2hLtWyT9Ir+lYlX9efqh7mOY qIws/H2t In-Reply-To: <20260709170816.4e876a16eef9a93f41bb1940@linux-foundation.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Stat-Signature: m3o9x8sbmnbesjdr4bj7nx46asit8i8k X-Rspamd-Queue-Id: 4910B80003 X-Rspamd-Server: rspam01 X-Rspam-User: X-HE-Tag: 1783671378-740286 X-HE-Meta: U2FsdGVkX19F8lPv2gFDYebZcrWAdadCUt20P5HTivgaKPPD1KSuFAkf/1vMjyoyz8VWvXIOB6y0bkIwn/mKrotToF6roIgp+DZVCq23CWSU5bdmV/gpt8BWjoWB4+ZWlUgvIGq4dqutp8RgYMpTCnIZbjfmVx3GMwBqz5ig0CtwZoN9lcD6aEtbMeOuQ/NX+s3DWhDxI3vJVw4s9an1qis+tiAPNE1mLaotv6csjLSMgNtgoszVJVZXujw0pWfFdIcVys0O3L+g/ni285Uzcuivgy/UUKav6YDqZ4xHaWVv25hIPTvlnuos/AJ4w4ucpsQqWIXYrPeB8Cl2iz8CXOaVZO0uAZJRONdSAlinxafPmdAWw3HoQp1/wACRcjd1dDZdoewq7CdXfFKs15Z+ya4frN+74LU3CJ/HpBoBILYD/KAS2ldJoLVhfZQG0EPR+KRLERI7Gw8Nz/VPz4BNlyKt5D3EdnJYdsEDnRP8f8YVk1ZkFzwQUtzzvRr3oHx8lpwl+73zGUpRsgf/afejUb8yvkh3WCR8isCdBkLhBHBzBZBPpKxg5lNrCN3jUejsRYcoBlQinEgkTvVhUdwcby0oUwyEFPQqgFVFPYNATFCfinLMomPxPB8ocV19p91+s6TnFj25Skukx7Pe5i46IxbsYHSEop38m/N/mNo6YVATcHI3gu/1zTHDsGyzxsbx5uMpJoKlhRjoZ56iDc70n98q+bZeWItPiPaDC1bGI0DJal2vPTJfXrblmgFIYJrWaGkO1XenTixwXrz4Re7XQMnI1/M/BqrzuuvMpXg6nt9SeazbKnLOEh3zDC5/Y2K7DhyHNbsmirrV+iPgoLDtBK0OV5bHzrQJQdNLdOuHCkgvv4Hf3a12+njkyq17IGxwQQkjydC2RgJS3MAwnd0xFo/+LY2FaiRAFKPZ1DgE6u48HegU0eLknkQdLkXWsdiAQvE/KC+trzRt2eBfP/T G/t9msu0 DhXE72VYHEx2jVN/xhOviSEJWtL9Xq2n55CY6kB1eN3m0gvsG4wVieurWlP8zZ0K1D8VrUi5QbB3s8uEUom1LSJStH02vjR9r2VvlcZX2jZV0qqTWS28dbqLSlKyWnfdC+EnbHOobI7UdfljAZf6geFNzNgbg5elv9vbALdpnG1RMrfmPfj3VVDkM/HCjiHJThpry6ZQQ4Vf0UX7hhQwWEzyHJhASluQN3LysFNItYPUk86WLISfSJWgvt1D58OcSQSgyvpfFsmioqA04De9oKoAImuLnrECMOa7x5CxkZNUkGIrWTKmiC2l2jwj3pdx12FyFI/hyUC/4LgeJKfWeVWdc8HKbi4e3MP64rHKhRGkj9tI= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 7/10/26 02:08, Andrew Morton wrote: > On Thu, 9 Jul 2026 10:13:34 +0530 Anshuman Khandual wrote: > >> From: "David Hildenbrand (Arm)" >> >> Bad page map reporting currently stores page table entry values in an >> unsigned long long and prints them with fixed 64-bit-oriented format >> strings. This is inconsistent across call sites and does not work well for >> architectures where page table entry values are not naturally represented >> as 64-bit values, such as 32-bit or 128-bit entries. > > Well grumble. It's a lot of fuss for something which nobody is hurting > from. Or are they? What's the actual utility here? Hugh seems to rely on this information heavily when debugging https://lore.kernel.org/r/3afa822d-3cc9-1068-9a10-94a5f2e4d29a@google.com -- Cheers, David