\u00cen lista de discu\u021bii a nucleului Linux este prezentat\u0103 a \u0219asea versiune a patch-urilor care implementeaz\u0103 mecanismul Kexec HandOver (KHO), dezvoltat de inginerii unor companii precum Amazon, Microsoft \u0219i Google. Patch-urile au fost deja acceptate \u00een ramura mm-everything, care adun\u0103 modific\u0103rile pentru viitoarea ramur\u0103 a nucleului 6.16, legat\u0103 de gestionarea memoriei. Pe baza Kexec HandOver, Google dezvolt\u0103 subsistemul Live Update Orchestrator (LUO), care permite repornirea nucleului f\u0103r\u0103 a opri func\u021bionarea dispozitivelor. <\/p>\n
Kexec HandOver ofer\u0103 posibilit\u0103\u021bi de a lansa un nou nucleu dintr-unul vechi f\u0103r\u0103 pierderea st\u0103rii sistemului. \u00cen prezent, apelul kexec() func\u021bioneaz\u0103 doar ca un bootloader, lans\u00e2nd pur \u0219i simplu un nou nucleu, care dup\u0103 aceea reini\u021bializeaz\u0103 complet sistemul, ceea ce este echivalent cu o repornire, dar f\u0103r\u0103 implicarea firmware-ului. Seria de patch-uri propus\u0103 implementeaz\u0103 o abordare diferit\u0103. \u00cenainte de a transfera controlul versiunii noului nucleu, starea subsystemelor cheie ale nucleului este serializat\u0103 \u00eentr-o regiune de memorie, care nu va fi afectat\u0103 de opera\u021bii ulterioare. Noul nucleu, odat\u0103 ce prime\u0219te controlul, reconstituie starea serializat\u0103. Din punctul de vedere al celorlalte programe, opera\u021biunea de \u00eenlocuire a nucleului este invizibil\u0103. <\/p>\n
Kexec HandOver poate fi util \u00een situa\u021bii \u00een care oprirea este inacceptabil\u0103 \u0219i este necesar s\u0103 se asigure un ciclu continuu de func\u021bionare a anumitor dispozitive. De exemplu, pe serverele de virtualizare, Kexec HandOver poate fi utilizat pentru actualizarea nucleului (\u0219i hipervizoarelor), f\u0103r\u0103 a afecta memoria ocupat\u0103 de ma\u0219inile virtuale \u0219i men\u021bin\u00e2nd starea execu\u021biei acestora. KVM<\/a>Kexec HandOver poate fi aplicat, f\u0103r\u0103 a afecta memoria ocupat\u0103 de ma\u0219inile virtuale, p\u0103str\u00e2nd astfel starea execu\u021biei lor. \u0412 \u0441\u043f\u0438\u0441\u043a\u0435 \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0438 \u044f\u0434\u0440\u0430 Linux \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430 \u0448\u0435\u0441\u0442\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 Kexec HandOver (KHO), \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0433\u043e \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0430\u043c\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 Amazon, Microsoft \u0438 Google. \u041f\u0430\u0442\u0447\u0438 \u0443\u0436\u0435 \u043f\u0440\u0438\u043d\u044f\u0442\u044b \u0432 \u0432\u0435\u0442\u043a\u0443 mm-everything, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u0430\u043a\u043e\u043f\u043b\u0435\u043d\u0438\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u0431\u0443\u0434\u0443\u0449\u0435\u0439 \u0432\u0435\u0442\u043a\u0438 \u044f\u0434\u0440\u0430 6.16, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435\u043c \u043f\u0430\u043c\u044f\u0442\u044c\u044e. \u041d\u0430 \u0431\u0430\u0437\u0435 Kexec HandOver \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u0440\u0430\u0437\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u0442 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0443 Live Update Orchestrator (LUO), 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Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"