{"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\/sq\/blog\/novosti-interneta\/razrabotchiki-yadra-linux-na-puti-k-udaleniyu-podderzhki-proczessorov-i486","title":{"rendered":"Zhvilluesit e b\u00ebrtham\u00ebs Linux jan\u00eb n\u00eb rrug\u00ebn drejt eliminimit t\u00eb mb\u00ebshtetjes p\u00ebr procesor\u00ebt i486","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Ingo Molnar, mbajt\u00ebsi i arkitektur\u00ebs x86, mekanizmit t\u00eb bllokimeve dhe planifikuesit t\u00eb detyrave n\u00eb kernelin Linux, paraqiti p\u00ebr diskutim nj\u00eb grup patch-e q\u00eb heqin nga kernel mb\u00ebshtetje p\u00ebr procesor\u00ebt 486 (M486, M486SX, AMD ELAN) dhe serit\u00eb fillestare t\u00eb procesor\u00ebve 586. N\u00eb kernel propozohet t\u00eb ruhet vet\u00ebm mund\u00ebsia e pun\u00ebs me procesor\u00ebt x86 q\u00eb mb\u00ebshtesin instrukcionin CX8 (CMPXCHG8B) dhe regjistrin TSC (Numri i Koha), t\u00eb cil\u00ebt shfaqen n\u00eb CPU Pentium. <\/p>\n
Raportohet se p\u00ebr t\u00eb mb\u00ebshtetur CPU 486 n\u00eb kernel, duhet mbajtur kodi q\u00eb emulon operacionet CX8 (krahaso dhe shk\u00ebmbe 8 byte) dhe TSC (numri i cikleve t\u00eb CPU-s\u00eb, i p\u00ebrdorur n\u00eb planifikuesin e detyrave). Ky kod e nd\u00ebrlikon kernelin, e b\u00ebn t\u00eb v\u00ebshtir\u00eb mbajtjen dhe her\u00eb-her\u00eb b\u00ebhet burim problemesh, zgjidhja e t\u00eb cilave i merr koh\u00eb zhvilluesve. Ndaluar mb\u00ebshtetje p\u00ebr 486 do t\u00eb lejoj\u00eb heqjen e 14104 rreshtave t\u00eb kodit nga kernel, gj\u00eb q\u00eb do ta thjeshtoj\u00eb ndjesh\u00ebm disa funksione n\u00eb kernel duke p\u00ebrjashtuar shtresat q\u00eb emulojn\u00eb CX8 dhe TSC dhe do t\u00eb lejoj\u00eb heqjen e bibliotek\u00ebs math-emu, e cila emulon FPU. <\/p>\n
Nj\u00eb dit\u00eb para publikimit t\u00eb patch-eve, pyetja e arsyeshm\u00ebris\u00eb s\u00eb heqjes s\u00eb mb\u00ebshtetjes p\u00ebr 486 u ngrit nga Linus Torvalds gjat\u00eb diskutimit t\u00eb nj\u00eb problemi tjet\u00ebr q\u00eb shfaqej gjat\u00eb emulimit t\u00eb CX8. Linus mendon se ka ardhur koha t\u00eb heqim mb\u00ebshtetje p\u00ebr CPU 486 dhe nuk sheh arsye p\u00ebr t\u00eb vazhduar t\u00eb harxhohet koha e zhvilluesve n\u00eb zgjidhjen e problemeve q\u00eb dalin nga ato. Mb\u00ebshtetje p\u00ebr procesor\u00ebt 386 u hoq nga kernel n\u00eb vitin 2012. Sipas pjes\u00ebmarr\u00ebsve n\u00eb bised\u00eb, tani ka ardhur koha p\u00ebr t\u00eb hequr mb\u00ebshtetje p\u00ebr CPU 486. N\u00eb tetor 2022, Linus kishte publikuar nj\u00eb propozim t\u00eb ngjash\u00ebm, por ai nuk mori zhvillim. <\/p>\n
N\u00eb sistemet e tjera t\u00eb zakonshme 486, kernel\u00ebt aktual\u00eb t\u00eb Linux-it praktikisht nuk p\u00ebrdoren. Variantet e specializuara t\u00eb procesor\u00ebve 486 p\u00ebr sisteme t\u00eb integruara, si Intel Quark, mb\u00ebshtesin CX8 dhe TSC, ndryshimi i tyre nuk do t\u00eb preket. CPU-t\u00eb origjinale t\u00eb 486 zakonisht vazhdojn\u00eb t\u00eb p\u00ebrdoren me diskoza t\u00eb vjetra q\u00eb ofrojn\u00eb versione t\u00eb vjetra t\u00eb kernelit Linux. Distributivat moderne t\u00eb Linux-it e kan\u00eb ndalur prej koh\u00ebsh mb\u00ebshtetje p\u00ebr sistemet 32-bit x86 ose kan\u00eb kaluar n\u00eb p\u00ebrdorimin e opsionit X86_PAE gjat\u00eb p\u00ebrpilimit, q\u00eb k\u00ebrkon mb\u00ebshtetje p\u00ebr CX8. \n Burimi: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"