{"id":150951,"date":"2025-12-09T11:12:32","date_gmt":"2025-12-09T09:12:32","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-yadro-linux-dobavlen-live-update-orchestrator-dlya-obnovleniya-v-live-rezhime"},"modified":"2025-12-09T11:12:32","modified_gmt":"2025-12-09T09:12:32","slug":"v-yadro-linux-dobavlen-live-update-orchestrator-dlya-obnovleniya-v-live-rezhime","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/v-yadro-linux-dobavlen-live-update-orchestrator-dlya-obnovleniya-v-live-rezhime","title":{"rendered":"Le Live Update Orchestrator a \u00e9t\u00e9 ajout\u00e9 au noyau Linux pour des mises \u00e0 jour en mode Live","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dans le code de base du noyau Linux, sur lequel la version 6.19 sera construite d\u00e9but f\u00e9vrier, le code du sous-syst\u00e8me LUO (Live Update Orchestrator), d\u00e9velopp\u00e9 par Google pour mettre \u00e0 jour le noyau en mode live sans red\u00e9marrage physique, a \u00e9t\u00e9 int\u00e9gr\u00e9. Ce sous-syst\u00e8me est bas\u00e9 sur le m\u00e9canisme KHO (Kexec HandOver), pr\u00e9c\u00e9demment ajout\u00e9 dans le noyau 6.16, qui permet de d\u00e9marrer un nouveau noyau \u00e0 partir de l'ancien sans perdre l'\u00e9tat du syst\u00e8me. <\/p>\n

Le Live Update Orchestrator permet de red\u00e9marrer compl\u00e8tement et de mettre \u00e0 jour le noyau sans interrompre le fonctionnement et sans perdre l'\u00e9tat du syst\u00e8me, des dispositifs et des processus. En plus des fonctionnalit\u00e9s du KHO, le sous-syst\u00e8me LUO conserve l'\u00e9tat des dispositifs et de la m\u00e9moire vive, tout en garantissant la continuit\u00e9 des op\u00e9rations li\u00e9es au DMA et au traitement des interruptions. L'\u00e9tat est conserv\u00e9 jusqu'au changement vers le nouveau noyau et est restaur\u00e9 apr\u00e8s l'activation du nouveau noyau sans perturber les op\u00e9rations continues des dispositifs, effectu\u00e9es par le syst\u00e8me et les applications dans l'espace utilisateur. <\/p>\n

Une caract\u00e9ristique des nouveaux patchs est la possibilit\u00e9 de conserver les descripteurs de fichiers memfd pour maintenir l'\u00e9tat des donn\u00e9es importantes en m\u00e9moire entre les red\u00e9marrages, comme le contenu de la m\u00e9moire vive. machines virtuelles<\/a>Comme domaine d\u2019application privil\u00e9gi\u00e9 du sous-syst\u00e8me, on \u00e9voque la mise \u00e0 jour rapide serveurs<\/a> avec des syst\u00e8mes de virtualisation bas\u00e9s sur l'hyperviseur KVM, pour r\u00e9soudre les probl\u00e8mes de s\u00e9curit\u00e9 et de stabilit\u00e9 avec un temps d'arr\u00eat minimal des machines virtuelles. Google utilise d\u00e9j\u00e0 cette technologie dans ses environnements de travail. <\/p>\n

Contrairement \u00e0 livepatch, Ksplice, kpatch, kGraft et d'autres m\u00e9canismes de patching \u00e0 chaud, le nouveau sous-syst\u00e8me ne se limite pas \u00e0 l'application de correctifs individuels au noyau en cours d'ex\u00e9cution et permet de remplacer compl\u00e8tement le noyau. Contrairement \u00e0 l'appel de kexec, le sous-syst\u00e8me LUO conserve l'\u00e9tat des dispositifs et des sous-syst\u00e8mes du noyau entre les red\u00e9marrages, tandis que l'appel \u00e0 kexec fonctionne seulement comme un chargeur, lan\u00e7ant un nouveau noyau avec une r\u00e9initialisation compl\u00e8te du syst\u00e8me (\u00e9quivalent \u00e0 un red\u00e9marrage, mais sans transfert de contr\u00f4le au firmware).
\n
Source : opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043a\u043e\u0434\u043e\u0432\u0443\u044e \u0431\u0430\u0437\u0443 \u044f\u0434\u0440\u0430 Linux, \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0432 \u043d\u0430\u0447\u0430\u043b\u0435 \u0444\u0435\u0432\u0440\u0430\u043b\u044f \u0431\u0443\u0434\u0435\u0442 \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 6.19, \u043f\u0440\u0438\u043d\u044f\u0442 \u043a\u043e\u0434 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b LUO (Live Update Orchestrator), \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u043e\u0439 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Google \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 \u0431\u0435\u0437 \u0444\u0438\u0437\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0435\u0440\u0435\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438. \u041f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u0431\u0430\u0437\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0435 KHO (Kexec HandOver), \u0440\u0430\u043d\u0435\u0435 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u043e\u043c \u0432 \u044f\u0434\u0440\u043e 6.16 \u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0449\u0435\u043c \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u043f\u0443\u0441\u043a\u0430 \u043d\u043e\u0432\u043e\u0433\u043e \u044f\u0434\u0440\u0430 \u0438\u0437 \u0441\u0442\u0430\u0440\u043e\u0433\u043e \u0431\u0435\u0437 \u043f\u043e\u0442\u0435\u0440\u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u044f 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