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[80.187.87.151]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a90612b38d3sm1238381566b.120.2024.09.23.08.23.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 23 Sep 2024 08:23:32 -0700 (PDT) Message-ID: Date: Mon, 23 Sep 2024 17:23:31 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] mm: Make SPLIT_PTE_PTLOCKS depend on the existence of NR_CPUS To: Guenter Roeck , Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven References: <20240923142533.1197982-1-linux@roeck-us.net> From: David Hildenbrand 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: <20240923142533.1197982-1-linux@roeck-us.net> 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-Server: rspam06 X-Rspamd-Queue-Id: 0450540012 X-Stat-Signature: ybohxphxsrka8y9bueksgyj1rgiftmty X-Rspam-User: X-HE-Tag: 1727105016-287652 X-HE-Meta: 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 WeRZh5Na ZeULpXzA2rlQ/MDf8S/YqBEg3WvaWO1JNoeVuNslg2six0eKMjqj3BZ9kioWQ4EbL0oJ9AYFK+mfXxjkefAl6fT7sRs6N8udSiFM2W+9QMbJcyK5MwZOFYCZUP0Dgp0DSqxKP0Su27luZc0pRI3HeUPDx/XpY+0p6YKHjNIXhmHAIf/E99PFIDPbNiQNA+hlo+HZYCrSrP+Bwf2kfm5C0HvFyAgyO7468aEUpP/JWR+x25fihu3M5kDrGs18CWftIu3D3DJEbd3ekRp6+PQzoPhFslXPZuq6fsNgRgYL7roKYsDu8qA7dPgglS25cb4h7Kg7MmjBFYvvbKAUasnShzXgJS4aHEWBqsx9ZKQsiwEwwttapMeFIppR8+GKaiMocD6rNoacMdjPPWSWAZXNwRv705QBEmYM6OvKiVyLBmp74WFAfQp33ceIiWk4hSrPoX0Ns0zScHaXhOXj0oC4xhB5J7/M/ngQ1LGybRuRzWJ7UZTk= 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 23.09.24 16:25, Guenter Roeck wrote: > SPLIT_PTE_PTLOCKS already depends on "NR_CPUS >= 4", but that evaluates > to true if there is no NR_CPUS configuration option (such as for m68k). > This results in CONFIG_SPLIT_PTE_PTLOCKS=y for mac_defconfig. > This in turn causes the m68k "q800" machine to crash in qemu. Oh, that's why my compile tests still worked ... I even removed the additional NR_CPUS check, assuming it's not required ... Thanks for debugging and fixing! Acked-by: David Hildenbrand -- Cheers, David / dhildenb