{"id":123507,"date":"2025-04-15T15:05:07","date_gmt":"2025-04-15T13:05:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/mehanizm-kexec-handover-dlya-perezagruzki-yadra-linux-bez-poteri-sostoyaniya"},"modified":"2025-04-15T15:05:07","modified_gmt":"2025-04-15T13:05:07","slug":"mehanizm-kexec-handover-dlya-perezagruzki-yadra-linux-bez-poteri-sostoyaniya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/mehanizm-kexec-handover-dlya-perezagruzki-yadra-linux-bez-poteri-sostoyaniya","title":{"rendered":"Kexec HandOver-mekanismen f\u00f6r att omstarta Linux-k\u00e4rnan utan att f\u00f6rlora tillst\u00e5nd.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

I Linux-k\u00e4rnans utskickslista presenteras den sj\u00e4tte versionen av patcharna med implementeringen av Kexec HandOver (KHO), som utvecklas av ingenj\u00f6rer fr\u00e5n f\u00f6retag som Amazon, Microsoft och Google. Patcharna har redan godk\u00e4nts i mm-everything-grenen, d\u00e4r \u00e4ndringar f\u00f6r den framtida k\u00e4rnversionen 6.16 samlas in, relaterade till minneshantering. P\u00e5 basis av Kexec HandOver utvecklar Google delsystemet Live Update Orchestrator (LUO), som m\u00f6jligg\u00f6r omstart av k\u00e4rnan utan att stoppa enheternas drift. <\/p>\n

Kexec HandOver m\u00f6jligg\u00f6r att starta ett nytt k\u00e4rna fr\u00e5n det gamla utan att f\u00f6rlora systemets tillst\u00e5nd. F\u00f6r n\u00e4rvarande fungerar anropet kexec() endast som en laddare, som helt enkelt startar den nya k\u00e4rnan, som d\u00e4refter fullst\u00e4ndigt \u00e5terinitialiserar systemet, vilket \u00e4r ekvivalent med en omstart, men utan firmware. Den f\u00f6reslagna patchserien implementerar en annan metod. Innan kontrollen \u00f6verl\u00e4mnas till den nya k\u00e4rnan, serialiseras tillst\u00e5ndet f\u00f6r k\u00e4rnans nyckel delsystem till ett minnesomr\u00e5de, som inte kommer att p\u00e5verkas av efterf\u00f6ljande operationer. Den nya k\u00e4rnan, efter att ha f\u00e5tt kontroll, \u00e5terst\u00e4ller det serialiserade tillst\u00e5ndet. Fr\u00e5n andra programvarors synvinkel \u00e4r operationen att byta k\u00e4rna osynlig. <\/p>\n

Kexec HandOver kan vara anv\u00e4ndbart i situationer d\u00e4r stopp \u00e4r oacceptabelt och kontinuerlig drift av vissa enheter m\u00e5ste s\u00e4kerst\u00e4llas. Till exempel, p\u00e5 virtualiseringsservrar kan Kexec HandOver till\u00e4mpas f\u00f6r att uppdatera k\u00e4rnan (och hypervisorn, KVM<\/a>), utan att p\u00e5verka minnet som upptas av virtuella maskiner, och bevara deras k\u00f6rande tillst\u00e5nd.
\n
K\u00e4lla: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0441\u043f\u0438\u0441\u043a\u0435 \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0438 \u044f\u0434\u0440\u0430 Linux \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430 \u0448\u0435\u0441\u0442\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 Kexec HandOver (KHO), \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0433\u043e \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0430\u043c\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 Amazon, Microsoft \u0438 Google. \u041f\u0430\u0442\u0447\u0438 \u0443\u0436\u0435 \u043f\u0440\u0438\u043d\u044f\u0442\u044b \u0432 \u0432\u0435\u0442\u043a\u0443 mm-everything, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u0430\u043a\u043e\u043f\u043b\u0435\u043d\u0438\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u0431\u0443\u0434\u0443\u0449\u0435\u0439 \u0432\u0435\u0442\u043a\u0438 \u044f\u0434\u0440\u0430 6.16, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435\u043c \u043f\u0430\u043c\u044f\u0442\u044c\u044e. \u041d\u0430 \u0431\u0430\u0437\u0435 Kexec HandOver \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u0440\u0430\u0437\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u0442 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0443 Live Update Orchestrator (LUO), […]<\/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-123507","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\udd47Kexec HandOver-mekanismen f\u00f6r omstart av Linux-k\u00e4rnan utan f\u00f6rlust av tillst\u00e5nd | ProHoster","description":"I Linux-k\u00e4rnans utskickslista presenteras den sj\u00e4tte versionen av patcharna med implementeringen av Kexec HandOver (KHO), som utvecklas av ingenj\u00f6rer fr\u00e5n f\u00f6retag som Amazon, Microsoft och 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\u0441\u043f\u0438\u0441\u043a\u0435 \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0438 \u044f\u0434\u0440\u0430 Linux \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430 \u0448\u0435\u0441\u0442\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 Kexec HandOver (KHO), \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0433\u043e \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0430\u043c\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 Amazon, Microsoft \u0438 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