{"id":124015,"date":"2025-05-04T09:05:07","date_gmt":"2025-05-04T07:05:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/razrabotchiki-yadra-linux-na-puti-k-udaleniyu-podderzhki-proczessorov-i486"},"modified":"2025-05-04T09:05:07","modified_gmt":"2025-05-04T07:05:07","slug":"razrabotchiki-yadra-linux-na-puti-k-udaleniyu-podderzhki-proczessorov-i486","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/razrabotchiki-yadra-linux-na-puti-k-udaleniyu-podderzhki-proczessorov-i486","title":{"rendered":"Linuxi tuumaarendajad on teel i486 protsessorite toe eemaldamise suunas","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ingo Molnar, x86 arhitektuuri, lukustusmehhanismi ja \u00fclesannete ajakava hooldaja Linuxi tuumas, esitas arutusele komplekti plaastreid, mis eemaldavad tuumast toe 486 protsessoritele (M486, M486SX, AMD ELAN) ja 586 protsessorite varajatele seeriatele. Tuumas soovitatakse j\u00e4tta alles ainult toimetulek x86-protsessoritega, mis toetavad CX8 k\u00e4sku (CMPXCHG8B) ja TSC registreid (Aja m\u00e4rkide loendur), mis ilmusid Pentiumi CPU-des. <\/p>\n

T\u00f5detakse, et 486 CPU toe tagamiseks tuleb tuumas hoida koodi, mis simuleerib CX8 (v\u00f5rdle ja vaheta 8 bitti) ja TSC (CPU ts\u00fcklite loendur, mida kasutatakse \u00fclesannete ajakavas). Selline kood keerukustab tuuma, raskendab hooldust ja muutub m\u00f5nikord probleemide allikaks, mille lahendamine v\u00f5tab aega arendajatelt. 486 toe l\u00f5petamine v\u00f5imaldab tuumast eemaldada 14104 koodirida, mis lihtsustab m\u00f5ningaid funktsioone tuumas, v\u00e4listades CX8 ja TSC simuleerimise kihtide ning vabanedes math-emu raamatukogust, mis simuleerib FPU-d. <\/p>\n

\u00dcks p\u00e4ev enne v\u00e4rskenduste avaldamist t\u00f5stis Linus Torvalds arutelu k\u00e4igus \u00fcles 486 protsessorite toe eemaldamise otstarbekuse, tuues v\u00e4lja KX8 emuleerimisega seotud probleemi. Linus usub, et on aeg loobuda 486 CPU toest ning ei n\u00e4e p\u00f5hjust, miks arendajad peaksid j\u00e4tkama nende probleemide lahendamisega. 386 protsessorite tugi eemaldati tuumast juba 2012. aastal. Arutelul osalejate arvates on n\u00fc\u00fcd aeg eemaldada ka 486 CPU tugi. Oktoobris 2022 esitas Linus juba sarnase ettepaneku, kuid see ei leidnud edasist arengut. <\/p>\n

486 protsessorite toe all olevates s\u00fcsteemides ei kasutata t\u00e4nap\u00e4eva Linuxi tuumasid praktiliselt kunagi. Spetsialiseeritud 486 protsessoriversioonid sisseharitud s\u00fcsteemidele, n\u00e4iteks Intel Quark, toetavad CX8 ja TSC, seega need muutused neid ei m\u00f5juta. Vanad originaalsed 486 CPU-d leiate tavaliselt koos vananenud jaotustega, mis pakuvad v\u00e4lja vanad Linuxi tuumaversioonid. Modernsed Linuxi jaotused on juba ammu l\u00f5petanud 32-bitiste x86 s\u00fcsteemide toe v\u00f5i on l\u00e4inud kokku pakendamisvalikule X86_PAE, mis n\u00f5uab CX8 toetust.
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Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0418\u043d\u0433\u043e \u041c\u043e\u043b\u043d\u0430\u0440 (Ingo Molnar), \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b x86, \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043e\u043a \u0438 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 \u0437\u0430\u0434\u0430\u0447 \u0432 \u044f\u0434\u0440\u0435 Linux, \u0432\u044b\u0441\u0442\u0430\u0432\u0438\u043b \u043d\u0430 \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u0435 \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439, \u0443\u0434\u0430\u043b\u044f\u044e\u0449\u0438\u0445 \u0438\u0437 \u044f\u0434\u0440\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 486 (M486, M486SX, AMD ELAN) \u0438 \u043d\u0430\u0447\u0430\u043b\u044c\u043d\u044b\u0445 \u0441\u0435\u0440\u0438\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 586. \u0412 \u044f\u0434\u0440\u0435 \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u0442\u0441\u044f \u043e\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u0442\u043e\u043b\u044c\u043a\u043e \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u043c\u0438 x86, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u043c\u0438 \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044e CX8 (CMPXCHG8B) \u0438 \u0440\u0435\u0433\u0438\u0441\u0442\u0440 TSC (Time Stamp Counter), […]<\/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-124015","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47Linuxi tuuma arendajad on teel i486 protsessorite toe eemaldamiseni | ProHoster","description":"Ingo Molnar, x86 arhitektuuri, lukustuse mehhanismi ja Linuxi tuuma \u00fclesannete planeerimise hooldaja, esitas arutamiseks pat\u0161ide kogumi, mis eemaldab tuumast toeta M486, M486SX, AMD ELAN ja algse 586 protsessori seeria. Tuumas soovitatakse j\u00e4tta alles ainult v\u00f5imalus t\u00f6\u00f6tada x86 protsessoritega, mis toetavad CX8 (CMPXCHG8B) k\u00e4sku ja TSC (Time Stamp Counter) registrit.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/razrabotchiki-yadra-linux-na-puti-k-udaleniyu-podderzhki-proczessorov-i486","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u044f\u0434\u0440\u0430 Linux \u043d\u0430 \u043f\u0443\u0442\u0438 \u043a \u0443\u0434\u0430\u043b\u0435\u043d\u0438\u044e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 i486 | ProHoster","og:description":"\u0418\u043d\u0433\u043e \u041c\u043e\u043b\u043d\u0430\u0440 (Ingo Molnar), \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b x86, \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043e\u043a \u0438 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 \u0437\u0430\u0434\u0430\u0447 \u0432 \u044f\u0434\u0440\u0435 Linux, \u0432\u044b\u0441\u0442\u0430\u0432\u0438\u043b \u043d\u0430 \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u0435 \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439, \u0443\u0434\u0430\u043b\u044f\u044e\u0449\u0438\u0445 \u0438\u0437 \u044f\u0434\u0440\u0430 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