{"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\/sv\/blog\/news\/google-razvivaet-sistemu-perezagruzki-yadra-bez-ostanovki-raboty-ustrojstv","title":{"rendered":"Google utvecklar ett system f\u00f6r att omstarta k\u00e4rnan utan att stoppa enheternas arbete","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ingenj\u00f6rer fr\u00e5n Google har publicerat ett set patchar f\u00f6r diskussion bland Linux-k\u00e4rnans utvecklare, med implementeringen av subsystemet Live Update Orchestrator (LUO), som \u00e4r avsett f\u00f6r att uppdatera k\u00e4rnan i realtid. Till skillnad fr\u00e5n mekanismer som livepatch, Ksplice, kpatch och kGraft, begr\u00e4nsas det nya systemet inte till att kunna till\u00e4mpa enstaka korrigeringar p\u00e5 den k\u00f6rande Linux-k\u00e4rnan, utan g\u00f6r det m\u00f6jligt att helt omstarta och uppdatera k\u00e4rnan utan att stoppa driften av vissa enheter. Projektet baseras p\u00e5 ett set patchar KHO (Kexec HandOver) till mekanismen kexec, som anv\u00e4nds f\u00f6r att ladda ett nytt k\u00e4rna fr\u00e5n en redan k\u00f6rande Linux-k\u00e4rna utan fysisk omstart. <\/p>\n

Den fr\u00e4msta till\u00e4mpningen av LUO n\u00e4mns som molnmilj\u00f6er, d\u00e4r det blir m\u00f6jligt att uppdatera hypervisorn KVM utan att st\u00f6ra verksamheten hos de k\u00f6rande virtuella maskiner<\/a>. S\u00e4rskilt kommer det att vara m\u00f6jligt att pausa virtuella maskiner<\/a> under omstarten av k\u00e4rnan med hypervisorn, vilket h\u00e5ller alla enheter kopplade till virtuella maskiner i drift. <\/p>\n

F\u00f6r att m\u00f6jligg\u00f6ra denna funktionalitet tillhandah\u00e5ller LUO m\u00f6jligheter att spara tillst\u00e5ndet f\u00f6r enheter innan v\u00e4xlingen till den nya k\u00e4rnan och \u00e5terst\u00e4lla tillst\u00e5ndet omedelbart efter aktiveringen av den nya k\u00e4rnan p\u00e5 ett s\u00e5dant s\u00e4tt att p\u00e5g\u00e5ende system- och applikationsoperationer i anv\u00e4ndarutrymmet med enheterna inte kommer att st\u00f6ras. Under omstarten av k\u00e4rnan s\u00e4kerst\u00e4lls ocks\u00e5 kontinuiteten i de p\u00e5g\u00e5ende operationerna med DMA och aktivitet relaterad till avbrottshantering. <\/p>\n

F\u00f6r att samordna bevarande av tillst\u00e5nd och v\u00e4xling till en ny k\u00e4rna tillhandah\u00e5ller LUO ett API som m\u00f6jligg\u00f6r f\u00f6r andra delsystem av k\u00e4rnan att ansluta hanterare f\u00f6r att sp\u00e5ra och delta i processen f\u00f6r Live-omstart. Bland de delsystem som kan integreras med LUO n\u00e4mns hypervisor KVM, iommu, avbrottssystemet och drivrutiner. F\u00f6r att \u00f6verf\u00f6ra minnestillst\u00e5ndet fr\u00e5n den gamla k\u00e4rnan till den nya anv\u00e4nds KHO (Kexec HandOver). Hanteringen sker genom sysfs-filerna \"\\\/sys\\\/kernel\\\/liveupdate\\\/{state, prepare, finish}\".
\n
K\u00e4lla: 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 utvecklar system f\u00f6r omstart av k\u00e4rnan utan att stoppa driften av enheter | ProHoster","description":"Ingenj\u00f6rer fr\u00e5n Google har publicerat ett set patchar f\u00f6r diskussion bland Linux-k\u00e4rnans utvecklare, med implementeringen av subsystemet Live Update Orchestrator (LUO), som \u00e4r avsett f\u00f6r att uppdatera k\u00e4rnan i 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