{"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\/hr\/blog\/news\/linus-torvalds-predlozhil-prekratit-podderzhku-cpu-i486-v-yadre-linux","title":{"rendered":"Linus Torvalds je predlo\u017eio obustavu podr\u0161ke za i486 CPU u Linux kernelu.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Tijekom rasprave o alternativnim rje\u0161enjima za rad na x86 procesorima koji ne podr\u017eavaju instrukciju «cmpxchg8b», Linus Torvalds izjavio je da je mo\u017eda do\u0161lo vrijeme da se ta instrukcija proglasi obaveznom za rad jezgre i odustane od podr\u0161ke za i486 procesore koji ne podr\u017eavaju «cmpxchg8b», umjesto da se poku\u0161ava emulirati rad te instrukcije na procesorima koje vi\u0161e nitko ne koristi. Trenutno su gotovo svi Linux distribucije koje nastavljaju podr\u017eavati 32-bitne x86 sustave pre\u0161le na jezgru s opcijom X86_PAE, koja zahtijeva podr\u0161ku za «cmpxchg8b». <\/p>\n

Prema Linusovom mi\u0161ljenju, s aspekta podr\u0161ke u jezgru, i486 procesori su izgubili zna\u010daj, iako su jo\u0161 uvijek prisutni u upotrebi. U odre\u0111enom trenutku procesori postaju muzejski eksponati i za njih je sasvim dovoljno imati «muzejske» jezgre. Korisnici koji jo\u0161 uvijek imaju sustave s i486 procesorima mo\u0107i \u0107e koristiti LTS verzije jezgre koje \u0107e biti podr\u017eane jo\u0161 mnogo godina. <\/p>\n

Prekid podr\u0161ke za klasi\u010dne i486 ne\u0107e utjecati na ugra\u0111ene procesore Quark koje proizvodi Intel, koji se i dalje smatraju i486, ali uklju\u010duju dodatne instrukcije svojstvene generaciji Pentium, uklju\u010duju\u0107i «cmpxchg8b». Isto vrijedi i za Vortex86DX procesore. Podr\u0161ka za i386 procesore prekinuta je u jezgru prije 10 godina.
\n
Izvor: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f […]<\/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\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Linus Torvalds je predlo\u017eio prekid podr\u0161ke za CPU i486 u Linux kernelu | ProHoster","description":"Tijekom rasprave o zaobila\u017eenju rada na x86 procesorima koji ne podr\u017eavaju instrukciju \"cmpxchg8b\", Linus Torvalds je izjavio da je mo\u017eda do\u0161lo vrijeme da se uredi obavezna prisutnost te instrukcije za rad 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