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[2003:cb:c70b:5f00:9b61:28a2:eea1:fa49]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4282bb226a5sm14626665e9.47.2024.07.31.02.28.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 31 Jul 2024 02:28:15 -0700 (PDT) Message-ID: <30eed7f9-19bb-4b45-a9ce-52acbe10024e@redhat.com> Date: Wed, 31 Jul 2024 11:28:14 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [linux-next:pending-fixes] [mm/hugetlb] d3fe1a0a02: WARNING:at_include/linux/hugetlb.h:#huge_pte_lockptr From: David Hildenbrand To: kernel test robot Cc: oe-lkp@lists.linux.dev, lkp@intel.com, Linux Memory Management List , Andrew Morton , Peter Xu , Muchun Song , Oscar Salvador References: <202407311421.95f5c759-lkp@intel.com> Autocrypt: addr=david@redhat.com; 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 B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: E647C8001F X-Stat-Signature: tmweky1uozdbcj9rhntmgbm3ifo47y94 X-Rspamd-Server: rspam09 X-Rspam-User: X-HE-Tag: 1722418099-208818 X-HE-Meta: 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 SWLA7RJt 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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 31.07.24 10:16, David Hildenbrand wrote: > On 31.07.24 09:20, kernel test robot wrote: >> >> >> Hello, >> >> kernel test robot noticed "WARNING:at_include/linux/hugetlb.h:#huge_pte_lockptr" on: >> >> commit: d3fe1a0a0272723474056e3000717d69923ad901 ("mm/hugetlb: fix hugetlb vs. core-mm PT locking") >> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git pending-fixes >> >> [test failed on linux-next/master cd19ac2f903276b820f5d0d89de0c896c27036ed] >> >> in testcase: trinity >> version: trinity-i386-abe9de86-1_20230429 >> with following parameters: >> >> runtime: 300s >> group: group-00 >> nr_groups: 5 >> >> >> >> compiler: gcc-11 >> test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G >> >> (please refer to attached dmesg/kmsg for entire log/backtrace) >> >> >> +------------------------------------------------------+------------+------------+ >> | | e98970a1d2 | d3fe1a0a02 | >> +------------------------------------------------------+------------+------------+ >> | WARNING:at_include/linux/hugetlb.h:#huge_pte_lockptr | 0 | 12 | >> | EIP:huge_pte_lockptr | 0 | 12 | >> +------------------------------------------------------+------------+------------+ >> >> >> If you fix the issue in a separate patch/commit (i.e. not just a new version of >> the same patch/commit), kindly add following tags >> | Reported-by: kernel test robot >> | Closes: https://lore.kernel.org/oe-lkp/202407311421.95f5c759-lkp@intel.com >> >> >> [ 39.570466][ T3479] ------------[ cut here ]------------ >> [ 39.570921][ T3479] WARNING: CPU: 0 PID: 3479 at include/linux/hugetlb.h:948 huge_pte_lockptr (include/linux/hugetlb.h:948 (discriminator 1)) > > Helpful! Likely triggers because in that kernel cfg P4D_SIZE is 0. Hm, with !CONFIG_X86_5LEVEL we should have #define PGDIR_SHIFT 39 #define P4D_SHIFT PGDIR_SHIFT #define P4D_SIZE (1UL << P4D_SHIFT) ... getting a hugepage size >= P4D_SIZE seems pretty much impossible. Anyhow, taking the easy route to be done with his hugetlb crap and live a happy live, I'll drop the warning and just handle it explicitly. -- Cheers, David / dhildenb