{"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\/ro\/blog\/news\/v-yadro-linux-dobavlen-live-update-orchestrator-dlya-obnovleniya-v-live-rezhime","title":{"rendered":"\u00cen nucleul Linux a fost ad\u0103ugat Live Update Orchestrator pentru actualiz\u0103ri \u00een modul Live","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u00cen codul de baz\u0103 al nucleului Linux, pe baza c\u0103ruia va fi format lansarea 6.19 la \u00eenceputul lunii februarie, a fost acceptat codul subsistemului LUO (Live Update Orchestrator), dezvoltat de Google pentru actualizarea nucleului \u00een modul Live f\u0103r\u0103 a necesita repornirea fizic\u0103. Subsistemul se bazeaz\u0103 pe mecanismul KHO (Kexec HandOver), care a fost ad\u0103ugat anterior \u00een nucleul 6.16 \u0219i permite rularea unui nou nucleu dintr-unul vechi f\u0103r\u0103 a pierde starea sistemului. <\/p>\n

Live Update Orchestrator permite repornirea \u0219i actualizarea complet\u0103 a nucleului f\u0103r\u0103 a opri activitatea \u0219i f\u0103r\u0103 a pierde starea sistemului, a dispozitivelor \u0219i a proceselor. Pe l\u00e2ng\u0103 func\u021bionalitatea KHO, subsistemul LUO salveaz\u0103 starea dispozitivelor \u0219i a memoriei operative, asigur\u00e2nd, de asemenea, continuitatea opera\u021biunilor legate de DMA \u0219i procesarea \u00eentreruperilor. Starea este p\u0103strat\u0103 p\u00e2n\u0103 la comutarea pe noul nucleu \u0219i este restabilit\u0103 dup\u0103 activarea noului nucleu f\u0103r\u0103 a \u00eentrerupe opera\u021biunile continue cu dispozitivele efectuate de sistem \u0219i aplica\u021bii \u00een spa\u021biul utilizatorului. <\/p>\n

O caracteristic\u0103 a noii serii de patch-uri este capacitatea de a salva descriptorii de fi\u0219iere memfd pentru a men\u021bine starea datelor importante \u00een memorie \u00eentre reporniri, cum ar fi con\u021binutul memoriei operative ma\u0219ini virtuale<\/a>. Ca domeniu de utilizare principal al subsistemului se men\u021bioneaz\u0103 actualizarea rapid\u0103 servere<\/a> cu sistemele de virtualizare bazate pe hypervisor KVM, pentru a rezolva problemele de securitate \u0219i stabilitate cu un timp minim de nefunc\u021bionare a ma\u0219inilor virtuale. Google folose\u0219te deja aceast\u0103 tehnologie \u00een mediile sale de lucru. <\/p>\n

Spre deosebire de livepatch, Ksplice, kpatch, kGraft \u0219i alte mecanisme de aplicare la cald a patch-urilor, noul subsistem nu se limiteaz\u0103 la aplicarea unor corec\u021bii individuale pe nucleul activ \u0219i permite \u00eenlocuirea complet\u0103 a nucleului. Spre deosebire de apelul kexec, subsistemul LUO p\u0103streaz\u0103 starea dispozitivelor \u0219i a subsistemelor nucleului \u00eentre reporniri, \u00een timp ce apelul kexec func\u021bioneaz\u0103 doar ca un bootloader, lans\u00e2nd un nou nucleu cu o reinicializare complet\u0103 a sistemului (echivalent cu repornirea, dar f\u0103r\u0103 a transfera controlul c\u0103tre firmware).
\n
Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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