{"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\/fr\/blog\/news\/google-razvivaet-sistemu-perezagruzki-yadra-bez-ostanovki-raboty-ustrojstv","title":{"rendered":"Google d\u00e9veloppe un syst\u00e8me de red\u00e9marrage du noyau sans interruption du fonctionnement des dispositifs","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Des ing\u00e9nieurs de Google ont publi\u00e9 \u00e0 l'intention des d\u00e9veloppeurs du noyau Linux un ensemble de correctifs proposant une mise en \u0153uvre du sous-syst\u00e8me Live Update Orchestrator (LUO), destin\u00e9 \u00e0 mettre \u00e0 jour le noyau en mode Live. Contrairement \u00e0 des m\u00e9canismes tels que livepatch, Ksplice, kpatch et kGraft, ce nouveau syst\u00e8me ne limite pas la possibilit\u00e9 d'appliquer des correctifs individuels au noyau Linux en cours d'ex\u00e9cution, mais permet de red\u00e9marrer et de mettre \u00e0 jour int\u00e9gralement le noyau sans interrompre le fonctionnement de certains dispositifs. Le projet est bas\u00e9 sur un ensemble de correctifs KHO (Kexec HandOver) pour le m\u00e9canisme kexec, utilis\u00e9 pour charger un nouveau noyau \u00e0 partir d'un noyau Linux d\u00e9j\u00e0 en cours d'ex\u00e9cution sans red\u00e9marrage physique. <\/p>\n

La principale application du LUO est mentionn\u00e9e dans les environnements cloud, o\u00f9 il sera possible de mettre \u00e0 jour l'hyperviseur KVM sans perturber le fonctionnement des \u00e9l\u00e9ments en cours. machines virtuelles<\/a>En particulier, il sera possible de suspendre machines virtuelles<\/a> le temps du red\u00e9marrage du noyau avec l'hyperviseur, en maintenant tous les dispositifs attach\u00e9s aux machines virtuelles en \u00e9tat de fonctionnement. <\/p>\n

Pour r\u00e9aliser cette possibilit\u00e9, le LUO offre des fonctionnalit\u00e9s de pr\u00e9servation de l'\u00e9tat des dispositifs avant de passer \u00e0 un nouveau noyau et de restauration de cet \u00e9tat imm\u00e9diatement apr\u00e8s la mise en service du nouveau noyau, de mani\u00e8re \u00e0 ce que les op\u00e9rations continues du syst\u00e8me et des applications en espace utilisateur avec les dispositifs ne soient pas perturb\u00e9es. Pendant le processus de red\u00e9marrage du noyau, la continuit\u00e9 des op\u00e9rations effectu\u00e9es avec le DMA et l'activit\u00e9 li\u00e9e au traitement des interruptions est \u00e9galement assur\u00e9e. <\/p>\n

Pour coordonner la conservation de l'\u00e9tat et passer \u00e0 un nouveau noyau, LUO fournit une API permettant aux autres sous-syst\u00e8mes du noyau de connecter des gestionnaires pour surveiller et participer au processus de red\u00e9marrage \u00e0 chaud. Parmi les sous-syst\u00e8mes pouvant s'int\u00e9grer \u00e0 LUO, on note l'hyperviseur KVM, iommu, le syst\u00e8me d'interruptions et les pilotes. Le transfert de l'\u00e9tat de la m\u00e9moire de l'ancien noyau au nouveau est assur\u00e9 par KHO (Kexec HandOver). La gestion s'effectue via les fichiers sysfs \u00ab \/sys\/kernel\/liveupdate\/{state, prepare, finish} \u00bb.
\n
Source : 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 d\u00e9veloppe un syst\u00e8me de red\u00e9marrage du noyau sans interrompre le fonctionnement des dispositifs | ProHoster","description":"Des ing\u00e9nieurs de Google ont publi\u00e9 \u00e0 l'intention des d\u00e9veloppeurs du noyau Linux un ensemble de correctifs proposant une mise en \u0153uvre du sous-syst\u00e8me Live Update Orchestrator (LUO), destin\u00e9 \u00e0 mettre \u00e0 jour le noyau en mode 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