Inenge mazana mashanu ezviuru mitsara yekodhi ine chekuita nemadhiraivha edhiraivha yakagamuchirwa muLinux 5.19.

Chiratidzo Kernel Linux, Tux

Nhau dzakabuda munguva pfupi yapfuura kuti mune yekuchengetera umo kernel kusunungurwa kwe Linux 5.19 yakagamuchira imwe seti yeshanduko ine chekuita ne DRM subsystem (Direct Rendering Manager) uye madhiraivha emifananidzo.

Chigamba chakaiswa kugamuchirwa inonakidza nekuti inosanganisira 495k mitsetse yekodhi, iyo inofananidzwa nehuwandu hwehuwandu hwekuchinja mubazi rega rega rekernel (somuenzaniso, 506k mitsara yekodhi yakawedzerwa mu kernel 5.17).

mhoro linus

Ichi ndicho chikuru drm kudhonza chikumbiro che5.19-rc1.

Yakajairwa pfupiso pazasi, Intel yakagonesa DG2 pane mamwe maSKU elaptop,
AMD yatanga rutsigiro rutsva rweGPU, msm ine mushandisi akapihwa VA kudzora.

Kunetsana:
Ndakabatanidza nemuti wako pano maawa mashoma apfuura, pakanga paine maviri i915 makakatanwa
asi dzaive nyore kugadzirisa saka ndinofunga unogona kuzvibata.

Hapana zvinhu zvakawanda kunze kwehumambo hwangu pano.

Semazuva ese ndizivisewo kana paine dambudziko,

Zvinotaurwa kuti mune yakagamuchirwa chigamba anenge 400 mitsetse inosanganisirwa akawedzera huya kubva kuASIC rejista data musoro mafaera inogadzirwa otomatiki mune AMD GPU mutyairi.

Mukuwedzera kune izvi, zvinoratidzwa zvakare kuti imwe mitsara zviuru makumi maviri neshanu inopa kutanga kuisirwa kwe AMD SoC22,5 rutsigiro. Huwandu hwese hwemutyairi we AMD GPU hwakapfuura mamirioni mana emitsara yekodhi (yekuenzanisa, iyo yese Linux 4 kernel yaisanganisira zviuru zana nemakumi manomwe nenomwe mitsara yekodhi, 1.0 - 176 zviuru, 2,0 - 778 miriyoni, 2,4 - 3,4 miriyoni). Pamusoro peSoC5,13, mutyairi we AMD anosanganisira tsigiro yeSMU 29,2.x (System Management Unit), yakagadziridzwa rutsigiro rwe USB-C neGPUVM, uye yakagadzirira kutsigira chizvarwa chinotevera cheRDNA21 (RX 13) uye CDNA (AMD instinct) .

Mune Intel mutyairi, inonyanya kuchinja (5,6 zviuru) iri musimba rekutonga kodhi. Akawedzerawo maIntel driver ID eIntel DG2 (Arc Alchemist) maGPU anoshandiswa mumalaptops, akapa rutsigiro rwekutanga kuIntel Raptor Platform Lake-P (RPL-P), akawedzera ruzivo nezvemakadhi emifananidzo eArctic Sound-M, akaiswa ABI yemakomputa injini, yakawedzera Tile4 fomati yekutsigira makadhi eDG2, yakaitwa DisplayPort HDR rutsigiro rwemasisitimu akavakirwa paHaswell microarchitecture.

Ndichiri pachikamu che nouveau controller, zvakazara, shanduko dzakakanganisa dzinenge zana mitsara yekodhi (shanduko yakaitwa kushandisa drm_gem_plane_helper_prepare_fb driver, yakashandiswa static memory allocation yezvimwe zvimiro uye zvinosiyana). Kana zviri zvekushandiswa kweakavhurika sosi Nouveau kernel modules neNVIDIA, basa kusvika parizvino rakaderedzwa kusvika pakuziva nekubvisa tsikidzi. Mune ramangwana, zvakarongwa kushandisa yakaburitswa firmware kuvandudza mashandiro emutongi.

Kana iwe uchida kuziva zvakawanda nezve shanduko yakarongwa yeinotevera vhezheni yeLinux 5.19, unogona kubvunza iwo maficha mu inotevera chinongedzo.

Kugumisira asi kusiri kupedzisira, Izvo zvakakoshawo kutaura kuti kusagadzikana kwakaonekwa munguva pfupi yapfuura (CVE-2022-1729) muLinux kernel iyo inogona kubvumira mushandisi wepanzvimbo kuwana midzi yekuwana kune sisitimu.

Kunetseka inokonzerwa nemamiriro erudzi muperf subsystem, iyo inogona kushandiswa kutanga kupinda kune yakatosunungurwa nzvimbo yekernel memory (shandisa-mushure-yemahara). Dambudziko rave kuratidzwa kubva pakaburitswa kernel 4.0-rc1. Kushandiswa kwakasimbiswa kune shanduro 5.4.193+.

ichi chiziviso chekusagadzikana kuchangobva kutaurwa (CVE-2022-1729) mune perf subsystem. yeLinux kernel. Dambudziko ndere nhangemutange mamiriro akaratidzwa kubvumira ropafadzo yenzvimbo ye kukwira kuenda kumidzi pane yazvino kernel vhezheni>= 5.4.193, asi bug inoita kunge iripo kubva kukernel vhezheni 4.0-rc1 (chigamba chinogadzirisa kuzvipira kweiyi vhezheni).
Neraki, kugoverwa kukuru kweLinux kunowanzo kurambidza kushandiswa kweperf kune vasina-rubatsiro vashandisi kuseta iyo sysctl variable kernel.perf_event_paranoid >= 3, inomiririra kusakuvara kusingakuvadzi.

Iyo gadziriso iripo chete sechigamba. Ngozi yekusagadzikana inodzikiswa nenyaya yekuti kugovera kwakawanda kunorambidza kupinda kune perf kune vasina rombo vashandisi nekukasira. Sekugadzirisa kuchengetedza, unogona kuseta sysctl kernel.perf_event_paranoid parameter kusvika 3.


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