Thaum sib tham txog kev ua haujlwm rau x86 processors uas tsis txhawb nqa "cmpxchg8b" cov lus qhia, Linus Torvalds tau hais tias nws yuav yog lub sijhawm los ua kom muaj cov lus qhia no yuav tsum tau ua rau cov ntsiav ua haujlwm thiab poob kev txhawb nqa rau i486 processors uas tsis txhawb "cmpxchg8b" es tsis txhob sim ua raws li kev ua haujlwm ntawm cov lus qhia no ntawm cov processors uas tsis muaj leej twg siv ntxiv lawm. Tam sim no, yuav luag tag nrho Linux kev faib tawm uas txuas ntxiv txhawb 32-ntsis x86 systems tau hloov mus rau lub tsev cov ntsiav nrog X86_PAE kev xaiv, uas yuav tsum muaj "cmpxchg8b" kev txhawb nqa.
Raws li Linus, los ntawm qhov pom ntawm kev txhawb nqa ntsiav, i486 processors tau poob lawv qhov cuam tshuam, txawm tias lawv tseem pom nyob rau hauv lub neej niaj hnub. Nyob rau qee kis, cov txheej txheem dhau los ua cov khoom pov thawj hauv tsev cia puav pheej thiab nws yog qhov ua tau rau lawv mus nrog "tsev cia puav pheej" cores. Cov neeg siv uas tseem muaj cov tshuab nrog i486 processors yuav siv tau LTS ntsiav tso tawm, uas yuav tau txais kev txhawb nqa ntau xyoo tom ntej.
Kev txiav tawm ntawm kev txhawb nqa rau classic i486s yuav tsis cuam tshuam rau Intel's embedded Quark processors, uas, txawm hais tias lawv koom nrog i486 chav kawm, suav nrog cov lus qhia ntxiv ntawm Pentium tiam, suav nrog "cmpxchg8b". Tib yam siv rau Vortex86DX processors. Kev them nyiaj yug rau i386 processors raug txiav tawm hauv kernel 10 xyoo dhau los.
Tau qhov twg los: opennet.ru