{"id":105371,"date":"2022-10-24T15:37:02","date_gmt":"2022-10-24T13:37:02","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/linus-torvalds-predlozhil-prekratit-podderzhku-cpu-i486-v-yadre-linux"},"modified":"2022-10-24T15:37:02","modified_gmt":"2022-10-24T13:37:02","slug":"linus-torvalds-predlozhil-prekratit-podderzhku-cpu-i486-v-yadre-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/linus-torvalds-predlozhil-prekratit-podderzhku-cpu-i486-v-yadre-linux","title":{"rendered":"Linus Torvalds a propos\u00e9 d'arr\u00eater le support du CPU i486 dans le noyau Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Lors des discussions sur les contournements pour le travail sur les processeurs x86 ne prenant pas en charge l'instruction &#171;cmpxchg8b&#187;, Linus Torvalds a d\u00e9clar\u00e9 qu'il \u00e9tait peut-\u00eatre temps de rendre cette instruction obligatoire pour le fonctionnement du noyau et de cesser de prendre en charge les processeurs i486, qui ne supportent pas &#171;cmpxchg8b&#187;, plut\u00f4t que d'essayer d'\u00e9muler le fonctionnement de cette instruction sur des processeurs que personne n'utilise d\u00e9j\u00e0. Actuellement, presque toutes les distributions Linux qui continuent de prendre en charge les syst\u00e8mes x86 32 bits sont pass\u00e9es \u00e0 la compilation du noyau avec l'option X86_PAE, qui n\u00e9cessite la prise en charge de &#171;cmpxchg8b&#187;.      <\/p>\n<p>Selon Linus, du point de vue du support dans le noyau, les processeurs i486 ont perdu de leur pertinence, bien qu'ils soient encore pr\u00e9sents dans certains syst\u00e8mes. \u00c0 un certain moment, les processeurs deviennent des objets de mus\u00e9e et pour eux, on peut tout \u00e0 fait se contenter de noyaux 'mus\u00e9aux'. Les utilisateurs qui poss\u00e8dent encore des syst\u00e8mes avec des processeurs i486 pourront utiliser des versions LTS du noyau, qui seront soutenues encore de nombreuses ann\u00e9es.      <\/p>\n<p>L'arr\u00eat du support des classiques i486 n'affectera pas les processeurs embarqu\u00e9s Quark fabriqu\u00e9s par Intel, qui, bien qu'ils appartiennent \u00e0 la classe i486, incluent des instructions suppl\u00e9mentaires propres \u00e0 la g\u00e9n\u00e9ration Pentium, notamment &#171;cmpxchg8b&#187;. Il en va de m\u00eame pour les processeurs Vortex86DX. Le support des processeurs i386 a \u00e9t\u00e9 interrompu dans le noyau il y a 10 ans.<br \/>\n<br \/>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57964\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0445\u043e\u0434\u0435 \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u044f \u043e\u0431\u0445\u043e\u0434\u043d\u044b\u0445 \u043f\u0443\u0442\u0435\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u043d\u0430 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u0445 x86, \u043d\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044e &#171;cmpxchg8b&#187;, \u041b\u0438\u043d\u0443\u0441 \u0422\u043e\u0440\u0432\u0430\u043b\u044c\u0434\u0441 \u0437\u0430\u044f\u0432\u0438\u043b, \u0447\u0442\u043e \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0441\u0442\u0430\u043b\u043e \u0432\u0440\u0435\u043c\u044f \u043e\u0431\u044a\u044f\u0432\u0438\u0442\u044c \u043d\u0430\u043b\u0438\u0447\u0438\u0435 \u0434\u0430\u043d\u043d\u043e\u0439 \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u044f\u0434\u0440\u0430 \u0438 \u043e\u0442\u043a\u0430\u0437\u0430\u0442\u044c\u0441\u044f \u043e\u0442 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 i486, \u043d\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0445 &#171;cmpxchg8b&#187;, \u0432\u043c\u0435\u0441\u0442\u043e \u0442\u043e\u0433\u043e \u0447\u0442\u043e\u0431\u044b \u043f\u044b\u0442\u0430\u0442\u044c\u0441\u044f \u044d\u043c\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0440\u0430\u0431\u043e\u0442\u0443 \u0434\u0430\u043d\u043d\u043e\u0439 \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 \u043d\u0430 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u0445, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0443\u0436\u0435 \u043d\u0438\u043a\u0442\u043e \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442. \u0412 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-105371","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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