{"id":36877,"date":"2019-10-31T22:14:28","date_gmt":"2019-10-31T19:14:28","guid":{"rendered":"https:\/\/prohoster.info\/blog\/yadro-linux-ne-mozhet-myagko-obrabatyvat-situatsii-s-nehvatkoj-pamyati\/"},"modified":"2019-10-31T22:14:28","modified_gmt":"2019-10-31T19:14:28","slug":"yadro-linux-ne-mozhet-myagko-obrabatyvat-situatsii-s-nehvatkoj-pamyati","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/yadro-linux-ne-mozhet-myagko-obrabatyvat-situatsii-s-nehvatkoj-pamyati","title":{"rendered":"El n\u00facleo de Linux no puede manejar suavemente las situaciones de falta de memoria.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>En la lista de correo de los desarrolladores del kernel de Linux <noindex><a rel=\"nofollow\" href=\"https:\/\/lkml.org\/lkml\/2019\/8\/4\/15\">se ha planteado<\/a><\/noindex> el problema del manejo de la situaci\u00f3n de agotamiento de la memoria libre en Linux:<\/p>\n<blockquote>\n<p>Existe un problema que ha estado afectando a muchas personas durante a\u00f1os y que se puede reproducir en menos de unos minutos en la \u00faltima versi\u00f3n del kernel Linux 5.2.6. Todos los par\u00e1metros del kernel est\u00e1n configurados a sus valores predeterminados.<\/p>\n<p>Pasos:<\/p>\n<ul>\n<li class=\"l\"> Cargamos con el par\u00e1metro \u00abmem=4G\u00bb.\n<li class=\"l\"> Desactivamos el soporte para swap (sudo swapoff -a).\n<li class=\"l\"> Abrimos cualquier navegador web, como Chrome\/Chromium y\/o Firefox.\n<li class=\"l\"> Comenzamos a abrir pesta\u00f1as con sitios web y observamos c\u00f3mo disminuye el volumen de memoria libre.\n<\/ul>\n<p>Tan pronto como surge una situaci\u00f3n en la que una nueva pesta\u00f1a requiere m\u00e1s memoria RAM de la que est\u00e1 disponible, el sistema casi se bloquea por completo. Incluso tendr\u00e1s dificultades para mover el cursor del rat\u00f3n. El indicador del disco duro parpadear\u00e1 constantemente (no entiendo por qu\u00e9). No podr\u00e1s iniciar nuevas aplicaciones ni cerrar las que ya est\u00e1n abiertas.<\/p>\n<p>Esta peque\u00f1a crisis puede durar minutos o m\u00e1s. Supongo que el sistema no deber\u00eda comportarse as\u00ed. Creo que se necesita hacer algo para evitar estos \u00abbloqueos\u00bb.<\/p>\n<p>Estoy casi seguro de que se pueden cambiar algunos par\u00e1metros de sysctl para evitar tales situaciones, pero algo me dice que esto deber\u00eda hacerse por defecto para todos, porque los usuarios no t\u00e9cnicos, al enfrentarse a un problema as\u00ed, simplemente dejar\u00e1n de usar Linux y no tendr\u00e1n tiempo para buscar soluciones en Google.\n<\/p><\/blockquote>\n<p>En <noindex><a rel=\"nofollow\" href=\"https:\/\/www.reddit.com\/r\/linux\/comments\/cmg48b\/lets_talk_about_the_elephant_in_the_room_the\/\">los comentarios<\/a><\/noindex> En Reddit, algunos usuarios sugieren activar swap, pero eso no resuelve el problema, solo lo pospone y a menudo lo empeora. Como posible soluci\u00f3n futura, la nueva <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=49842\">4.20<\/a><\/noindex> y mejorada en el kernel <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51051\">5.2<\/a><\/noindex> sub-sistema PSI (Pressure Stall Information), que permite analizar informaci\u00f3n sobre el tiempo de espera para obtener diversos recursos (CPU, memoria, entrada\/salida). Este sub-sistema permite realizar un seguimiento de la falta de memoria en una etapa temprana, identificar la fuente de los problemas y cerrar aplicaciones no esenciales, evitando que se presenten efectos visibles para el usuario. <\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fuente: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51231\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0441\u043f\u0438\u0441\u043a\u0435 \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u044f\u0434\u0440\u0430 Linux \u043f\u043e\u0434\u043d\u044f\u0442\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0441 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u0441\u0438\u0442\u0443\u0430\u0446\u0438\u0438 \u0438\u0441\u0447\u0435\u0440\u043f\u0430\u043d\u0438\u044f \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 \u0432 Linux: \u0418\u0437\u0432\u0435\u0441\u0442\u043d\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0434\u043e\u043d\u0438\u043c\u0430\u0435\u0442 \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u043e \u043b\u044e\u0434\u0435\u0439 \u043d\u0430 \u043f\u0440\u043e\u0442\u044f\u0436\u0435\u043d\u0438\u0438 \u043c\u043d\u043e\u0433\u0438\u0445 \u043b\u0435\u0442 \u0438 \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u043c\u043e\u0436\u043d\u043e \u0432\u043e\u0441\u043f\u0440\u043e\u0438\u0437\u0432\u0435\u0441\u0442\u0438 \u043c\u0435\u043d\u044c\u0448\u0435, \u0447\u0435\u043c \u0437\u0430 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043c\u0438\u043d\u0443\u0442 \u043d\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u044f\u0434\u0440\u0430 Linux 5.2.6. \u0412\u0441\u0435 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b \u044f\u0434\u0440\u0430 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u044b \u0432 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e. \u0428\u0430\u0433\u0438: \u0417\u0430\u0433\u0440\u0443\u0436\u0430\u0435\u043c\u0441\u044f \u0441 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u043c &#171;mem=4G&#187;. \u0412\u044b\u043a\u043b\u044e\u0447\u0430\u0435\u043c [&hellip;]<\/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-36877","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One 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