{"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\/ro\/blog\/news\/google-razvivaet-sistemu-perezagruzki-yadra-bez-ostanovki-raboty-ustrojstv","title":{"rendered":"Google dezvolt\u0103 un sistem de repornire a nucleului f\u0103r\u0103 a opri func\u021bionarea dispozitivelor","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Inginerii de la Google au publicat pentru discu\u021bie un set de patch-uri destinat dezvoltatorilor nucleului Linux, care implementeaz\u0103 subsistemul Live Update Orchestrator (LUO), destinat actualiz\u0103rii nucleului \u00een modul Live. Spre deosebire de mecanisme precum livepatch, Ksplice, kpatch \u0219i kGraft, noul sistem nu se limiteaz\u0103 la aplicarea de corec\u021bii individuale la nucleul Linux func\u021bional, ci permite repornirea \u0219i actualizarea complet\u0103 a nucleului f\u0103r\u0103 a opri func\u021bionarea dispozitivelor individuale. Proiectul se bazeaz\u0103 pe un set de patch-uri KHO (Kexec HandOver) pentru mecanismul kexec, folosit pentru a lansa un nou nucleu dintr-un nucleu Linux deja pornit f\u0103r\u0103 a efectua o repornire fizic\u0103. <\/p>\n

Principala utilizare a LUO este \u00een medii cloud, unde va fi posibil\u0103 actualizarea hipervizorului KVM f\u0103r\u0103 a afecta func\u021bionarea instan\u021belor pornite. ma\u0219ini virtuale<\/a>. \u00cen special, va fi posibil\u0103 suspendarea ma\u0219ini virtuale<\/a> pentru timpul necesar repornirii nucleului cu hipervizorul, men\u021bin\u00e2nd \u00een continuare toate dispozitivele ata\u0219ate ma\u0219inilor virtuale \u00een stare de func\u021bionare. <\/p>\n

Pentru a face posibil\u0103 aceast\u0103 op\u021biune, LUO ofer\u0103 capacit\u0103\u021bi pentru men\u021binerea st\u0103rii dispozitivelor \u00eenainte de a comuta la noul nucleu \u0219i pentru restabilirea st\u0103rii imediat dup\u0103 activarea noului nucleu, astfel \u00eenc\u00e2t opera\u021biunile continue ale sistemului \u0219i aplica\u021biilor din spa\u021biul utilizatorului cu dispozitivele s\u0103 nu fie perturbate. \u00cen timpul repornirii nucleului, de asemenea, se asigur\u0103 continuitatea opera\u021biunilor efectuate cu DMA \u0219i activitatea legat\u0103 de gestionarea \u00eentreruperilor. <\/p>\n

Pentru coordonarea salv\u0103rii st\u0103rii \u0219i comutarea pe un nou nucleu, LUO ofer\u0103 un API care permite altor subsisteme s\u0103 se conecteze la procesul de Live-re\u00eenc\u0103rcare prin intermediul handler-elor. Printre subsistemele care pot fi integrate cu LUO se num\u0103r\u0103 hypervisorul KVM, iommu, sistemul de \u00eentreruperi \u0219i driverele. Pentru transferul st\u0103rii memoriei de la vechiul nucleu la nou, se folose\u0219te KHO (Kexec HandOver). Controlul se face prin fi\u0219ierele sysfs « \/sys\/kernel\/liveupdate\/{state, prepare, finish} ».
\n
Sursa: opennet.ro<\/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\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 dezvolt\u0103 un sistem de repornire a nucleului f\u0103r\u0103 a opri func\u021bionarea dispozitivelor | ProHoster","description":"Inginerii de la Google au publicat pentru discu\u021bie un set de patch-uri destinat dezvoltatorilor nucleului Linux, care implementeaz\u0103 subsistemul Live Update Orchestrator (LUO), destinat actualiz\u0103rii nucleului \u00een modul 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