Idan kun tuna, mun riga mun fada que Specter zai kawo wutsiya da yawa, da kuma cewa ba zai zama wani abu da za'a iya gyara saukinsa a cikin CPUs da abin ya shafa ba, kuma hakan ma ba zai sami wani ɗan gajeren bayani ba har sai sabbin samfuran siliki sun zo waɗanda basa yin kuskure iri ɗaya. Da kyau, yanzu an gano wani sabon nau'in yanayin rauni wanda mafita wanda aka bayar ya zuwa yanzu baya aiki.
Wannan sabon bambancin yana shafar dukkan masu sarrafa microcache na zamani, duka Intel da AMD. Matsalar ba ma hakan ba ce, amma idan aka lasafta su don magance waɗannan batutuwan tsaro, za su sake haifar da gagarumar azabar aikatawa. Idan Specter ya riga ya sami tasiri mai mahimmanci, facin waɗannan zai rage aikin sosai. Kuma idan baku goge su ba, za a fallasa su ...
Kungiyar masu bincike, jagorancin Ashish Venkat, daga Jami'ar Virginia, ya gano wannan sabon yanayin rashin lafiyar da za a iya amfani da shi lokacin da CPU ke samun bayanai daga ɓoye ƙananan ayyukan. Wato, zai shafi duk masu sarrafa AMD tun daga 2017 da Intel tun 2011 waɗanda ke amfani da wannan nau'in ma'ajin na musamman.
An sanar da dukkanin kamfanonin biyu wannan sabon yanayin rashin lafiyar tun kafin gabatar da sanarwa ga jama'a, saboda su sami lokacin da zasu maida martani. Amma babu ɗayan kamfanonin biyu da suka ƙaddamar da ko ɗaya sabunta lambar ka hakan na iya gyara wannan matsalar tsaro. Koyaya, bai kamata ku firgita sosai ba, tunda haɗarin bai yi yawa ba, tunda yanayin kai harin za'a yi shi da ɗan nisa. Bugu da kari, akwai asarar aikin da aka ambata, wanda zai iya haifar da matsaloli fiye da yadda facin zai magance ...
Dangane da takaddar da waɗannan masu binciken suka wallafa, akwai hanyoyi guda uku don magance matsalar:
- Shafe maɓallin micro-ops a mashigar yanki. Amma, don wannan, sabbin CPUs suna buƙatar fanko TLB ɗin suma. Wannan yana da sakamako mai tsananin gaske, saboda aiki ba zai iya ci gaba ba har sai da ILLB (TLB don umarni) ba mutane ba.
- Zai iya zama raba maɓallin micro-op wanda ya dogara da dama. Wannan rabawar zai haifar da karuwar wuraren kariya, da kuma rashin amfani da wannan ma'ajin, don haka shima yana da mummunan tasiri akan aikin.
- Aiwatar da aikin sanya ido wanda yake gano rikice-rikice. Amma dabara ce mai saurin kuskure da kuma kaskantar da aiki idan aka yi ta maimaita magana akai-akai.
A yanzu, jira don ganin wace mafita kamfanonin ke bayarwa da kuma lokacin da aka saki sabuntawar firmware ...