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b=eh822lybAXjox2yIdvaS51CpRIgXuAOfbYYWlIeK6+vUE8MCIewdrLkMFVSaPc3Bs iT/gNJfIXB6hK/6T1zZ6efYa5bJ6f8Tkv10s26Gc9+PMrt4vWf6WcnOuEvryaEIYNX rjS9LquJq8R3ZBubHuwJrvn4dFy9mM+E8gzLSIsUM816U1VHAd86mY2VIaXIsvAg2d ixqfbT73Rt1vZaL+m9/fwGrahDDflJ2sl0EcNFvXUAxPwY9zEIV70dQtF+w5tj91n8 haE2ZjTn3XhLns6WanC1giGFT6BYhgtcTlSWmRyRHYNQLTWdSrRC3bCYN2LMyncOXP zJmalntBAQX7Q== Message-ID: <5f4d8780-55f1-4b60-840a-056da7401848@kernel.org> Date: Thu, 5 Mar 2026 12:40:55 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: walk_pgd_range BUG: unable to handle page fault To: Tytus Rogalewski Cc: linux-mm@kvack.org, muchun.song@linux.dev, osalvador@suse.de, Jens Axboe References: <5948f3a6-8f30-4c45-9b86-2af9a6b37405@kernel.org> <0dfd588c-3284-4310-b1cd-aab54567f0c0@kernel.org> <05a26f9d-e7eb-4aa4-b5a3-d485945f81c6@kernel.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: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: 848re19ri5qrpdumfbd915h9i7x8thrn X-Rspamd-Queue-Id: 3033FA000E X-Rspamd-Server: rspam03 X-HE-Tag: 1772710860-917468 X-HE-Meta: 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 wPcXKsVe cRwVUgr2nASZd+mHi/y+EqEr8wYsqQz1rXSzwjrUlM00lD6ojOhAOxyGVbFU2NsVL8QNL50R6YdvyztEYxxIx4QIGvj7O5Q/0BfjHbzKsYbj77BwD+sFgHv2YfPC4En6U8dqNlgrkiBa5VxIQFtKru3si1AvMR1rSvN9M4IXKdyBwMU17YzupF4t3w+16qdnfUCPE5pTW1AeYyFHmKaUGKKIdp3lWa2Gi9O3PU/VZ2aFkOWfUlkeZGC5w5cKlEpRqKcVSbtWUjlUnCXCGAzfZ+GCuvvvWABkm2YlIM47xrjc9h0cgEA5veKBlsQ9BNLfGEjMOI26C6fmQobo= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 3/5/26 12:39, Tytus Rogalewski wrote: > I had this problem on 6.19-rc4 yes. I saw it. But i cant reproduce it > NOW - this is what i ment  :) Ah, thanks for clarifying, makes sense! -- Cheers, David