{"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\/cs\/blog\/news\/google-razvivaet-sistemu-perezagruzki-yadra-bez-ostanovki-raboty-ustrojstv","title":{"rendered":"Google vyv\u00edj\u00ed syst\u00e9m restartov\u00e1n\u00ed j\u00e1dra bez p\u0159eru\u0161en\u00ed provozu za\u0159\u00edzen\u00ed","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

In\u017een\u00fd\u0159i spole\u010dnosti Google zve\u0159ejnili pro diskuzi mezi v\u00fdvoj\u00e1\u0159i j\u00e1dra Linux sadu patch\u016f s implementac\u00ed subsyst\u00e9mu Live Update Orchestrator (LUO), ur\u010den\u00e9ho pro aktualizaci j\u00e1dra v re\u00e1ln\u00e9m \u010dase. Na rozd\u00edl od takov\u00fdch mechanism\u016f, jako jsou livepatch, Ksplice, kpatch a kGraft, nov\u00fd syst\u00e9m se neomezuje pouze na mo\u017enost aplikace jednotliv\u00fdch oprav na b\u011b\u017e\u00edc\u00ed j\u00e1dro Linux, ale umo\u017e\u0148uje kompletn\u00ed restart a aktualizaci j\u00e1dra bez p\u0159eru\u0161en\u00ed provozu jednotliv\u00fdch za\u0159\u00edzen\u00ed. Projekt je zalo\u017een na sad\u011b patch\u016f KHO (Kexec HandOver) pro mechanismus kexec, kter\u00fd se pou\u017e\u00edv\u00e1 k na\u010dten\u00ed nov\u00e9ho j\u00e1dra z ji\u017e spu\u0161t\u011bn\u00e9ho j\u00e1dra Linux bez fyzick\u00e9ho restartu. <\/p>\n

Hlavn\u00ed oblast\u00ed pou\u017eit\u00ed LUO jsou cloudov\u00e1 prost\u0159ed\u00ed, ve kter\u00fdch se objev\u00ed mo\u017enost aktualizace hypervizoru KVM bez naru\u0161en\u00ed b\u011bhu spu\u0161t\u011bn\u00fdch virtu\u00e1ln\u00edch stroj\u016f<\/a>. Konkr\u00e9tn\u011b bude mo\u017en\u00e9 pozastavit virtu\u00e1ln\u00ed stroje<\/a> b\u011bhem restartu j\u00e1dra s hypervizorem, zat\u00edmco v\u0161echna za\u0159\u00edzen\u00ed p\u0159ipojen\u00e1 k virtu\u00e1ln\u00edm stroj\u016fm z\u016fstanou v provozu. <\/p>\n

Pro realizaci t\u00e9to funkce LUO poskytuje mo\u017enosti pro zachov\u00e1n\u00ed stavu za\u0159\u00edzen\u00ed p\u0159ed p\u0159epnut\u00edm na nov\u00e9 j\u00e1dro a obnoven\u00ed stavu ihned po aktivaci nov\u00e9ho j\u00e1dra, tak\u017ee kontinu\u00e1ln\u00ed operace syst\u00e9mu a aplikac\u00ed v u\u017eivatelsk\u00e9 prostor s za\u0159\u00edzen\u00edmi nebudou naru\u0161eny. B\u011bhem restartu j\u00e1dra je tak\u00e9 zaji\u0161t\u011bna kontinuita prov\u00e1d\u011bn\u00fdch operac\u00ed s DMA a aktivita souvisej\u00edc\u00ed s zpracov\u00e1n\u00edm p\u0159eru\u0161en\u00ed. <\/p>\n

Pro koordinaci uchov\u00e1n\u00ed stavu a p\u0159epnut\u00ed na nov\u00e9 j\u00e1dro poskytuje LUO API, kter\u00e9 umo\u017e\u0148uje jin\u00fdm subsyst\u00e9m\u016fm j\u00e1dra p\u0159ipojit zpracovatele pro sledov\u00e1n\u00ed a \u00fa\u010dast v procesu \u017eiv\u00e9ho restartu. Mezi subsyst\u00e9my, kter\u00e9 se mohou integrovat s LUO, pat\u0159\u00ed hypervisor KVM, iommu, syst\u00e9m p\u0159eru\u0161en\u00ed a ovlada\u010de. Pro p\u0159enos stavu pam\u011bti ze star\u00e9ho j\u00e1dra do nov\u00e9ho se pou\u017e\u00edv\u00e1 KHO (Kexec HandOver). \u0158\u00edzen\u00ed prob\u00edh\u00e1 prost\u0159ednictv\u00edm soubor\u016f sysfs \u201e\\\/sys\\\/kernel\\\/liveupdate\\\/{state, prepare, finish}\u201c.
\n
Zdroj: 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 vyv\u00edj\u00ed syst\u00e9m restartov\u00e1n\u00ed j\u00e1dra bez p\u0159eru\u0161en\u00ed provozu za\u0159\u00edzen\u00ed | ProHoster","description":"In\u017een\u00fd\u0159i spole\u010dnosti Google zve\u0159ejnili k diskuzi s v\u00fdvoj\u00e1\u0159i j\u00e1dra Linux sadu patch\u016f, kter\u00e9 implementuj\u00ed subsyst\u00e9m Live Update Orchestrator (LUO) ur\u010den\u00fd k aktualizaci j\u00e1dra v re\u017eimu 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