Linus Torvalds akazivisa Svondo ino kuwanikwa kwakawanda kweshanduro 5.6 yeLinux kernel mushure mekuburitswa kwakasiyana CRs. Linux 5.6 ine zvakawanda shanduko uye kugadzirisa. Kunge yega yega vhezheni yechinhu chikuru chekuvandudza mutsara, iyo nyowani inounza zvinopfuura zviuru gumi shanduko, vamwe vanovandudza mabasa matsva, vamwe vanovandudza aripo.
Izvo zvakakosha zveiyi vhezheni inosanganisira Arm EOPD rutsigiro, nguva mazita mazita, BPF dispatcher uye batch BPF kadhi mashandiro uye openat2 system kufona, kuitwa kweVPN WireGuard nezvimwe.
USB 4 kuenderana
Iyo USB 4 standard ndeimwe yeakanyanya maficha yeiyi vhezheni yeLinux Kernel kubvira USB4 rutsigiro yakaitwa inoenderana neThunderbolt 3 kududzirwa. Pfungwa, kumhanya kunogona kusvika makumi mana Gb / s kuburikidza ne USB-C chinongedzo, kuwedzera kune masimba ekutsigira anosvika zana watts kuburikidza nePD port (Kuendesa Simba). USB4 inokutendera kuti ubatanidze 4K kana 8K kuratidza ku USB, pamwe nekubatanidza akateedzana akati wandei emadhizaini e USB kuketani mune imwechete chiteshi.
Iyi tekinoroji yekubatanidza, iyo yakapedziswa zhizha rapfuura uye ikabuda kubva kuThunderbolt 3, inofanira kunge yatoonekwa pamatanho mumwedzi mishoma. Intel's Tiger Lake chizvarwa processor, iyo inogara nhaka yazvino Ice Lake dzakateedzana desktop uye laptop processor, inofanirwa kutsigirwa.
Kugadziriswa kwezvipuka kwegore ra2038
Imwe shanduko inouya muLinux 5.6 iri iko kukanganisa kwegore 2038 iro rinokanganisa 32-bit zvivakwa nekuda kwedambudziko rekufashukira.
Muchokwadi, Unix neLinux vanochengeta kukosha kwenguva mune 32-bit yakasainwa manhamba ese ane huwandu hwakanyanya hwe2147483647. Beyond iyi nhamba, nekuda kwekufashukira kwenhamba, zviyero zvichachengetwa senhamba isina kunaka Izvi zvinoreva kuti kune 32-bit system, iyo nguva kukosha haigone kudarika 2147483647 masekondi mushure meNdira 1, 1970.
Nemashoko akareruka, mushure me 03:14:07 UTC muna Ndira 19, 2038, nekuda kwekufashukira, nguva ichave Zvita 13, 1901 panzvimbo yaNdira 19, 2038.
WireGuard rutsigiro
Linux 5.6 inouya neWireguard VPN technology, anga achitaura zvakawanda nezvake kwechinguva. Izvi zvinokodzera, pakati pezvimwe zvinhu, kune a kukurumidza kubatanidza kuisirwa, kuita kwakanaka uye kusimba, kubata nekukurumidza kubata kubatanidza kubvisa. Uye zvakare, tunnel tekinoroji inoshanda zvakanyanya uye zviri nyore kugadzirisa kupfuura yekare VPN matekinoroji; Wireguard inopa chengetedzo kurwisa evesdropping neazvino encryption algorithms.
WireGuard inoshandisa Curve25519 kuchinjana kiyi, ChaCha20 yekunyora, Poly1305 yechokwadi data, SipHash yemakiyi ane hashtable, uye BLAKE2s ye hash. Iyo inotsigira Layer 3 ye IPv4 uye IPv6 uye inogona kuvhara v4-in-v6 uye zvinopesana. WireGuard yakagamuchirwa nevamwe vanopa VPN sevhisi seMullvad VPN, AzireVPN, IVPN, uye cryptostorm, nguva refu isati yaiswa muLinux, nekuda kweiyo "yakanaka" dhizaini.
ARM EOPD rutsigiro
Nekuda kwekunetseka kweMeltdown iyo inobvumidza anorwisa munzvimbo yemushandisi kuverenga data kubva kune kernel nzvimbo uchishandisa mubatanidzwa wekufungidzira kuuraya uye cache-based child chiteshi. Kernel yekuzvidzivirira paMeltdown ndiko kupatsanurwa kwematafura epeji reiyo. kubvisa zvachose kernel peji matafura kubva mushandisi nzvimbo mepu. Zvinoshanda asi ine yakanyanya kukosha mashandiro emutengo uye inogona kukanganisa kushandiswa kweimwe processor mabasa.
Nekudaro, zvinowanzo gamuchirwa kuti kero nzvimbo yekuzviparadzanisa ichave ichiwedzera kudikanwa kuchengetedza masystem kwenguva yakati inotevera.
Iko kune imwe nzira, inova danho rinotangira paE0PD, iyo yakawedzerwa sechikamu cheArm v8.5 yekuwedzera. E0PD inovimbisa kupinda kubva kune mushandisi nzvimbo kusvika pakati mememori kadhi Iyo kernel inogara ichiitwa mune inogara nguva, nekudaro ichidzivirira kuwiriranisa kurwisa.
Naizvozvo E0PD haidzivirire kuti isamhanya nenzira yekufungidzira mundangariro iyo nzvimbo yemushandisi isingafanire kuwana, asi inovhara nzira yemudivi iyo inowanzo shandiswa kutora iyo data inoburitswa nekufungidzira kwakaipa.
Finalmente kana iwe uchida kuziva zvakawanda nezvazvo, unogona kubvunza chinotevera chinongedzo.