{"id":122821,"date":"2025-03-24T22:22:48","date_gmt":"2025-03-24T20:22:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/google-razvivaet-sistemu-perezagruzki-yadra-bez-ostanovki-raboty-ustrojstv"},"modified":"2025-03-24T22:22:48","modified_gmt":"2025-03-24T20:22:48","slug":"google-razvivaet-sistemu-perezagruzki-yadra-bez-ostanovki-raboty-ustrojstv","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/google-razvivaet-sistemu-perezagruzki-yadra-bez-ostanovki-raboty-ustrojstv","title":{"rendered":"Google udvikler et system til genstart af kernen uden at stoppe enhedernes drift","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ingeni\u00f8rer fra Google har offentliggjort et s\u00e6t patches til diskussion blandt Linux-kernens udviklere, som implementerer subsystemet Live Update Orchestrator (LUO) designet til at opdatere kernen i live-tilstand. I mods\u00e6tning til mekanismer som livepatch, Ksplice, kpatch og kGraft, begr\u00e6nser det nye system sig ikke til at anvende individuelle rettelser p\u00e5 den k\u00f8rende Linux-kerne, men muligg\u00f8r en fuld genstart og opdatering af kernen uden at stoppe driften af enkelte enheder. Projektet er baseret p\u00e5 et s\u00e6t patches kaldet KHO (Kexec HandOver), der anvendes til at indl\u00e6se en ny kerne fra en allerede k\u00f8rende Linux-kerne uden fysisk genstart. <\/p>\n

Den prim\u00e6re anvendelse af LUO n\u00e6vnes at v\u00e6re i cloud-milj\u00f8er, hvor der vil v\u00e6re mulighed for at opdatere KVM-hypervisoren uden at forstyrre driften af k\u00f8rende virtual machines<\/a>s\u00e6rligt, vil man kunne suspendere virtuelle maskiner<\/a> driften i forbindelse med genstarten af kernen med hypervisoren og bevare alle tilknyttede enheder til virtuelle maskiner i drift. <\/p>\n

For at realisere denne mulighed giver LUO funktioner til at bevare enhedernes tilstand f\u00f8r skiftet til den nye kerne og genoprette tilstanden umiddelbart efter aktiveringen af den nye kerne, s\u00e5ledes at systemets og applikationernes kontinuerlige operationer i brugerrummet med enhederne ikke bliver forstyrret. Under genstarten af kernen sikres ogs\u00e5 kontinuiteten af igangv\u00e6rende DMA-operationer og aktivitet relateret til afbruddsbehandling. <\/p>\n

For at koordinere bevaringen af tilstand og skiftet til en ny kerne tilbyder LUO et API, der g\u00f8r det muligt for andre kerneundersystemer at tilslutte h\u00e5ndterere for at f\u00f8lge og deltage i processen med Live-genstart. Blandt de undersystemer, der kan integreres med LUO, er KVM-hypervisoren, iommu, afbrydelsessystemet og drivere. Overf\u00f8rslen af hukommelsestilstand fra den gamle kerne til den nye foreg\u00e5r via KHO (Kexec HandOver). Styring foretages gennem sysfs-filerne \u00ab\/sys\/kernel\/liveupdate\/{state, prepare, finish}\u00bb.
\n
Kilde: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0418\u043d\u0436\u0435\u043d\u0435\u0440\u044b \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Google \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0438 \u0434\u043b\u044f \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 \u044f\u0434\u0440\u0430 Linux \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b Live Update Orchestrator (LUO), \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0439 \u0434\u043b\u044f \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u044f\u0434\u0440\u0430 \u0432 Live-\u0440\u0435\u0436\u0438\u043c\u0435. \u0412 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 \u0442\u0430\u043a\u0438\u0445 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u043e\u0432, \u043a\u0430\u043a livepatch, Ksplice, kpatch \u0438 kGraft, \u043d\u043e\u0432\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u043d\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c\u044e \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0439 \u043a \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0435\u043c\u0443 \u044f\u0434\u0440\u0443 Linux, \u0430 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043f\u043e\u043b\u043d\u043e\u0446\u0435\u043d\u043d\u043e \u043f\u0435\u0440\u0435\u0437\u0430\u0433\u0440\u0443\u0437\u0438\u0442\u044c \u0438 \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u044f\u0434\u0440\u043e […]<\/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-122821","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\udd47Google udvikler et system til genstart af kernen uden at stoppe enhedernes drift | ProHoster","description":"Ingeni\u00f8rer fra Google har offentliggjort et s\u00e6t patches til diskussion blandt Linux-kernens udviklere, som implementerer subsystemet Live Update Orchestrator (LUO) designet til at opdatere kernen i 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