{"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\/it\/blog\/news\/google-razvivaet-sistemu-perezagruzki-yadra-bez-ostanovki-raboty-ustrojstv","title":{"rendered":"Google sta sviluppando un sistema per il riavvio del kernel senza interrompere il funzionamento dei dispositivi.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Gli ingegneri di Google hanno pubblicato per la discussione da parte degli sviluppatori del kernel Linux un insieme di patch con l'implementazione del sottosistema Live Update Orchestrator (LUO), progettato per aggiornare il kernel in modalit\u00e0 Live. A differenza di meccanismi come livepatch, Ksplice, kpatch e kGraft, il nuovo sistema non si limita a consentire l'applicazione di singole correzioni al kernel Linux in esecuzione, ma permette un riavvio completo e un aggiornamento del kernel senza fermare il funzionamento dei singoli dispositivi. Il progetto si basa su un insieme di patch KHO (Kexec HandOver) per il meccanismo kexec, utilizzato per avviare un nuovo kernel da un kernel Linux gi\u00e0 in esecuzione senza un riavvio fisico. <\/p>\n

La principale area di applicazione del LUO \u00e8 rappresentata dagli ambienti cloud, dove sar\u00e0 possibile aggiornare l'iper-visor KVM senza interrompere le operazioni in corso. macchine virtuali<\/a>In particolare, sar\u00e0 possibile mettere in pausa macchine virtuali<\/a> per il tempo necessario al riavvio del kernel con l'iper-visor, mantenendo attivi tutti i dispositivi collegati alle macchine virtuali. <\/p>\n

Per realizzare questa possibilit\u00e0, il LUO offre funzioni per salvare lo stato dei dispositivi prima di passare al nuovo kernel e ripristinare lo stato immediatamente dopo l'attivazione del nuovo kernel, in modo tale che le operazioni continue del sistema e delle applicazioni nello spazio utente con i dispositivi non siano interrotte. Durante il riavvio del kernel \u00e8 garantita anche la continuit\u00e0 delle operazioni in corso con il DMA e l'attivit\u00e0 legata alla gestione delle interruzioni. <\/p>\n

Per coordinare il salvataggio dello stato e il passaggio a un nuovo kernel, LUO fornisce un'API che permette ad altri sottosistemi del kernel di collegare gestori per monitorare e partecipare al processo di live reboot. Tra i sottosistemi che possono integrarsi con LUO, si segnalano il hypervisor KVM, l'iommu, il sistema delle interruzioni e i driver. Per trasferire lo stato della memoria dal vecchio kernel al nuovo viene utilizzato il KHO (Kexec HandOver). Il controllo avviene tramite i file sysfs \u00ab\/sys\/kernel\/liveupdate\/{state, prepare, finish}\u00bb.
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Fonte: 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\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 sviluppa un sistema di riavvio del kernel senza fermare il funzionamento dei dispositivi | ProHoster","description":"Gli ingegneri di Google hanno pubblicato per la discussione da parte degli sviluppatori del kernel Linux un insieme di patch con l'implementazione del sottosistema Live Update Orchestrator (LUO), progettato per aggiornare il kernel in modalit\u00e0 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