Kernel 5.19 ya zo tare da haɓakawa a cikin matakai, tallafin kayan aiki, tsaro da ƙari

An riga an fitar da sabon sigar Kernel 5.19 kuma a cikin wannan sabon sigar, daga cikin manyan canje-canje, misali, da goyon baya ga LoongArch processor gine, "BIG TCP" haɗewar facin, yanayin "kan-buƙata" a fscache, cire code don tallafawa tsarin a.out, ikon amfani ZSTD don damfara firmware, mai dubawa don sarrafa ƙwaƙwalwar ajiyar ƙwaƙwalwar ajiya daga sararin mai amfani, ingantaccen aminci da aiki na janareta na lambar bazuwar, goyan bayan Intel IFS (In-Field Scan), AMD SEV-SNP (Secure Nsted Paging), Intel TDX (Trusted Domain Extensions) da kari na ARM SME (Scalable Matrix Extension).

Sabuwar sigar ta karɓi gyaran 16401 daga masu haɓakawa 2190 (Sabuwar sigar tana da gyare-gyare 16206 daga masu haɓaka 2127), girman faci: 90 MB (canji ya shafi fayilolin 13847, ƙara layin lambar 1149456, cire layin 349177).

Babban labarai na kernel 5.19

Daga cikin manyan canje-canje na wannan sabon sigar, zamu iya ambata cewa an same shi Lokacin tattarawa tare da Clang 15, ana tallafawa tsarin bazuwar na tsarin kwaya.

Hanyar kasa, wanda ke ba da damar iyakance hulɗar ƙungiyoyin matakai tare da yanayin waje, an ba da goyon baya ga dokoki hakan ya bada damar sarrafa aiwatar da ayyuka canza sunan fayil.

Tsarin tsarin IMA (Integrity Measurement Architecture), wanda aka ƙera don bincika amincin abubuwan tsarin aiki ta amfani da sa hannu na dijital da hashes, canza don amfani da fs-verity module don tabbatar da fayil.

Canza dabaru na ayyuka lokacin da aka hana samun dama ga tsarin eBPF; A baya, duk umarnin da ke da alaƙa da tsarin kiran tsarin bpf() an kashe su, kuma har zuwa sigar 5.19, ana kiyaye damar yin amfani da umarnin da ba sa haifar da ƙirƙirar abu. Tare da wannan ɗabi'a, ana buƙatar tsari mai gata don ɗaukar shirin BPF, amma hanyoyin da ba su da gata na iya yin hulɗa tare da shirin.

Ara goyan bayan koma baya na haɗin MPTCP (MultiPath TCP) zuwa bayyanannen TCP, a cikin yanayin da ba za a iya amfani da wasu ayyuka na MPTCP ba. MPTCP wani tsawo ne na ƙa'idar TCP don tsara aikin haɗin TCP tare da isar da fakiti a lokaci guda tare da hanyoyi da yawa ta hanyoyin mu'amalar cibiyar sadarwa daban-daban waɗanda ke ɗaure zuwa adiresoshin IP daban-daban. An ƙara API don sarrafa rafukan MPTCP daga sararin mai amfani.

An kuma haskaka cewa an ƙara sama da layukan lamba 420 mai kula da alaka amdgpu, wanda kusan layuka 400 ana haifar da fayilolin kan kai ta atomatik tare da bayanai don rijistar ASIC a cikin direban AMD GPU, kuma wani layin 22,5K yana ba da aiwatar da farkon tallafin AMD SoC000. Jimlar girman direba don AMD GPUs ya wuce layin lamba miliyan 21. Baya ga SoC4, direban AMD ya haɗa da tallafi don SMU 21.x (Sashin Gudanar da Tsarin), tallafi da aka sabunta don USB-C da GPUVM, kuma yana shirye don tallafawa ƙarni na gaba na RDNA13 (RX 3) da CDNA (Ilimin AMD) .

Farashin i915 (mai hankali) ya inganta ikon sarrafa wutar lantarki, An ƙara ID na Intel DG2 (Arc Alchemist) GPUs da aka yi amfani da su a cikin kwamfyutoci, an ba da tallafi na farko don dandamali na Intel Raptor Lake-P (RPL-P), an ƙara bayanai kan katunan zane-zane na Arctic Sound-M, aiwatar da ABI don injin ƙididdigewa, ƙara don tallafin katunan DG2 don tsarin Tile4, tallafin DisplayPort HDR don tsarin da ya danganci Haswell microarchitecture.

Mai sarrafawa Nouveau ya canza zuwa amfani da direban drm_gem_plane_helper_prepare_fb, wasu sifofi da masu canji an sanya su a tsaye. Dangane da amfani da buɗaɗɗen mabuɗin kernel na Nouveau ta NVIDIA, aikin ya zuwa yanzu an rage shi zuwa ganowa da cire kwari. A nan gaba, an shirya yin amfani da firmware da aka saki don inganta aikin mai sarrafawa.

an haɓaka iya aiki dangantaka da mayar da martani ga tsaga kulle gano ("kulle tsaga"), wanda ke faruwa lokacin samun damar bayanan da ba daidai ba a cikin ƙwaƙwalwar ajiya saboda lokacin aiwatar da umarnin atomic, bayanan sun ketare layi biyu na faɗaɗawar cache na CPU. Irin waɗannan hadarurruka suna haifar da raguwar aiki sosai. Idan a baya, ta hanyar tsoho, kernel ya ba da gargadi tare da bayani game da tsarin da ya haifar da hatsarin, yanzu za a rage tsarin matsala don adana aikin sauran tsarin.

Ara goyon baya ga tsarin IFS (In-Field Scan) wanda aka aiwatar a cikin na'urori na Intel, wanda yana ba ku damar gudanar da ƙananan gwaje-gwajen bincike na CPU wanda zai iya gano matsalolin da ba a gano su ta hanyoyi na yau da kullun ba bisa la'akari da lambobin gyara kuskure (ECC) ko raƙuman daidaitawa.

Na sauran canje-canje wanda ya fice daga wannan sabon sigar:

  • An ƙara direba don mai sarrafa NVMe da aka yi amfani da shi a cikin kwamfutocin Apple bisa guntuwar M1.
  • ƙarin tallafi na farko don tsarin tsarin koyarwa na LoongArch da aka yi amfani da shi a cikin na'urori na Loongson 3 5000, wanda ke aiwatar da sabon RISC ISA mai kama da MIPS da RISC-V.
  • Ana samun tsarin gine-ginen LoongArch a cikin nau'ikan guda uku: Sauƙaƙe 32-bit (LA32R), 32-bit na al'ada (LA32S), da 64-bit (LA64).
  • Ƙara ikon shigar da fayil ɗin bootconfig a cikin kernel.
  • 'CONFIG_BOOT_CONFIG_EMBED_FILE="/PATH/TO/BOOTCONFIG/FILE"'.
  • Cire tallafi don takamaiman zaɓuɓɓukan taya x86: nosp, nosmap, nosmep, noexec, da noclflush).
  • Taimakawa ga ƙaƙƙarfan tsarin gine-gine na CPU h8300 (Renesas H8/300), wanda ba a kiyaye shi ba na dogon lokaci, an daina.

Finalmente idan kuna sha'awar ƙarin sani game da shi game da wannan sabon sigar, zaku iya bincika cikakkun bayanai A cikin mahaɗin mai zuwa.


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