{"id":53248,"date":"2019-11-27T00:00:00","date_gmt":"2019-11-26T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/v-yadre-linux-vyyavlena-oshibka-privodyashhaya-k-narusheniyu-raboty-nekotoryh-programm-ispolzuyushhih-avx"},"modified":"2020-02-18T14:01:08","modified_gmt":"2020-02-18T11:01:08","slug":"v-yadre-linux-vyyavlena-oshibka-privodyashhaya-k-narusheniyu-raboty-nekotoryh-programm-ispolzuyushhih-avx","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-yadre-linux-vyyavlena-oshibka-privodyashhaya-k-narusheniyu-raboty-nekotoryh-programm-ispolzuyushhih-avx","title":{"rendered":"Linuxi kernelis avastati viga, mis p\u00f5hjustab m\u00f5nede AVX-i kasutavate programmide talitlush\u00e4ireid.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Linuxi tuumas, alates versioonist 5.2, n\u00e4itab ennast<\/a><\/noindex> viga, mis p\u00f5hjustab AVX registri sisu rikkumist signaalit\u00f6\u00f6tajast v\u00e4ljumisel, mida t\u00f6\u00f6deldakse erandi genereerimise (page-fault) ajal. Probleem esineb, kui k\u00e4itatakse mitme l\u00f5imega programme («-pthread»), kus on AVX registriga seotud arvutusi, juhul kui tuum on kompileeritud GCC 9 (varasemate GCC versioonidega kompileerimisel probleem ei ilmne, kuna GCC 9 salvestab l\u00f5imedevahelise muutuja aadressi registrisse, samas kui varasemad GCC versioonid laadivad selle iga kord). <\/p>\n

Probleem p\u00f5hjustab programmi enneaegset l\u00f5petamist m\u00e4lu rikke vigadega. K\u00f5ige m\u00e4rgatavam ja sageli t\u00e4heldatav vea ilming t\u00e4nap\u00e4eval<\/a><\/noindex> kokkujooksud<\/a><\/noindex> rakendused<\/a><\/noindex>, mis on kirjutatud Go keeles. Toodud probleemi t\u00f5ttu l\u00f5petavad Go keeles kirjutatud programmid enneaegselt, tavaliselt vigadega «runtime error: invalid memory address or nil pointer dereference», «runtime: unexpected return pc» ja «segmentation violation». Tuumas on viga praegu still parandamata. K\u00e4esolev probleem<\/a><\/noindex> kaalumist Lisa Go keele runtime'ile muudatusi, et valida vigade \u00fcmbersuunamiseks probleemsetes Linuxi tuumades, lisades t\u00e4iendavaid kulusid.<\/p>\n

<\/a><\/noindex><\/p>\n

Allikas: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u044f\u0434\u0440\u0435 Linux, \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 5.2, \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0448\u0438\u0431\u043a\u0430, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a \u043d\u0430\u0440\u0443\u0448\u0435\u043d\u0438\u044e \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0433\u043e \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430 AVX \u043f\u0440\u0438 \u0432\u043e\u0437\u0432\u0440\u0430\u0442\u0435 \u0438\u0437 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430 \u0441\u0438\u0433\u043d\u0430\u043b\u0430, \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u043c\u043e\u0433\u043e \u043f\u0440\u0438 \u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u0438 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f (page-fault). \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u0435\u0442 \u043f\u0440\u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0435 \u043c\u043d\u043e\u0433\u043e\u043f\u043e\u0442\u043e\u0447\u043d\u044b\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c («-pthread»), \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0438\u043c\u0435\u044e\u0442\u0441\u044f \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u044f \u0441 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u043e\u043c AVX, \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u0441\u0431\u043e\u0440\u043a\u0438 \u044f\u0434\u0440\u0430 \u0432 GCC 9 (\u043f\u0440\u0438 \u0441\u0431\u043e\u0440\u043a\u0435 \u0432 \u0431\u043e\u043b\u0435\u0435 \u0440\u0430\u043d\u043d\u0438\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 GCC \u043e\u0448\u0438\u0431\u043a\u0430 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-53248","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Linuxi tuumas on avastatud viga, mis rikub teatud AVX kasutavate programmide toimimist | ProHoster","description":"Linuxi tuumas, alates versioonist 5.2, ilmneb viga, mis p\u00f5hjustab AVX registreerimise sisu 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