{"id":74853,"date":"2020-03-21T08:42:40","date_gmt":"2020-03-21T05:42:40","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/linux-kernel-5-6-chto-zhdat-v-novoj-versii-yadra"},"modified":"2020-03-21T08:42:40","modified_gmt":"2020-03-21T05:42:40","slug":"linux-kernel-5-6-chto-zhdat-v-novoj-versii-yadra","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/administrirovanie\/linux-kernel-5-6-chto-zhdat-v-novoj-versii-yadra","title":{"rendered":"Linux-k\u00e4rna 5.6 \u2013 vad kan vi f\u00f6rv\u00e4nta oss i den nya versionen?","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Utgivningen av Linux kernel 5.6 \u00e4r planerad till slutet av mars. I dagens artikel diskuterar vi de kommande f\u00f6r\u00e4ndringarna \u2014 det nya filsystemet, protokollet WireGuard och drivrutinsuppdateringar.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/493058\/\"><img decoding=\"async\" alt=\"Linux-k\u00e4rna 5.6 \u2013 vad kan vi f\u00f6rv\u00e4nta oss i den nya versionen?\" src=\"\/wp-content\/uploads\/2020\/03\/ef44ca6480f299f2d90386db99353037.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<i>Foto \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/photos\/xqeWJEHajkA\">lucas huffman<\/a><\/noindex> \u2014 Unsplash<\/i><\/p>\n<h2>Den efterl\u00e4ngtade VPN-protokollet<\/h2>\n<p>\nDavid Miller, ansvarig f\u00f6r Linux n\u00e4tverksunderh\u00e5ll, beslutade <noindex><a rel=\"nofollow\" href=\"https:\/\/itsfoss.com\/linux-kernel-5-6\/\">att inkludera<\/a><\/noindex> WireGuard-k\u00e4rnan. Det \u00e4r en VPN-tunnel, utvecklad av IT-f\u00f6retaget Edge Security. Id\u00e9n <noindex><a rel=\"nofollow\" href=\"https:\/\/marc.info\/?l=linux-netdev&amp;m=153306429108040&amp;w=2\">diskuterades<\/a><\/noindex> f\u00f6r tv\u00e5 \u00e5r sedan \u2014 d\u00e5 fick den <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.openwall.net\/netdev\/2018\/08\/02\/124\">st\u00f6d av<\/a><\/noindex> sj\u00e4lva Linus Torvalds \u2014 men implementeringen sk\u00f6ts upp. Projektet var starkt kopplat till kryptofunktioner fr\u00e5n Edge Security. Men f\u00f6r ett halv\u00e5r sedan kompromissade skaparna av det nya protokollet och <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.zx2c4.com\/pipermail\/wireguard\/2019-September\/004560.html\">bytte<\/a><\/noindex> till k\u00e4rnans Crypto API.<\/p>\n<blockquote><p>Det finns <noindex><a rel=\"nofollow\" href=\"https:\/\/itsfoss.com\/linux-kernel-5-6\/\">en \u00e5sikt<\/a><\/noindex>, vilket i framtiden kan g\u00f6ra att WireGuard kan ers\u00e4tta OpenVPN. Enligt <noindex><a rel=\"nofollow\" href=\"https:\/\/www.wireguard.com\/performance\/\">tester<\/a><\/noindex>, \u00e4r den nya protokollets kapacitet fyra g\u00e5nger h\u00f6gre \u00e4n OpenVPN: 1011 Mbit\/s j\u00e4mf\u00f6rt med 258 Mbit\/s. Men h\u00e4r \u00e4r det v\u00e4rt att notera att \u00f6verg\u00e5ngen till det standard Crypto API kan f\u00f6rs\u00e4mra resultaten.<\/p><\/blockquote>\n<p>\nEn annan funktion hos WireGuard \u00e4r att den <noindex><a rel=\"nofollow\" href=\"https:\/\/www.xda-developers.com\/wireguard-vpn-project-support-android-roms\/\">inte bryter anslutningen<\/a><\/noindex>, \u00e4ven om anv\u00e4ndaren f\u00e5r en ny IP-adress, och l\u00f6ser routingfr\u00e5gor sj\u00e4lv. F\u00f6r dessa \u00e4ndam\u00e5l kopplas en privat nyckel till varje n\u00e4tverksgr\u00e4nssnitt. Den genereras med hj\u00e4lp av <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9F%D1%80%D0%BE%D1%82%D0%BE%D0%BA%D0%BE%D0%BB_%D0%94%D0%B8%D1%84%D1%84%D0%B8_%E2%80%94_%D0%A5%D0%B5%D0%BB%D0%BB%D0%BC%D0%B0%D0%BD%D0%B0\">Diffie-Hellman-protokollet<\/a><\/noindex>. Sj\u00e4lva krypteringen <noindex><a rel=\"nofollow\" href=\"https:\/\/www.wireguard.com\/protocol\/\">bygger<\/a><\/noindex> p\u00e5 ChaCha20 och algoritmen <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Poly1305\">Poly1305<\/a><\/noindex>. Dessa anses vara f\u00f6rb\u00e4ttrade alternativ till AES-256-CTR och <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/HMAC\">HMAC<\/a><\/noindex>.<\/p>\n<h2>Det nya filsystemet<\/h2>\n<p>\nDetta system <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/scan.php?page=news_item&amp;px=Zonefs-Proposed-Linux-5.6\">Detta<\/a><\/noindex> Zonefs, presenterat av ingenj\u00f6rerna fr\u00e5n Western Digital. Det \u00e4r avsett f\u00f6r arbete med zonbaserade lagringsenheter (<noindex><a rel=\"nofollow\" href=\"https:\/\/www.zonedstorage.io\/\">zoned storage<\/a><\/noindex>). Detta \u00e4r blocklagringsenheter vars adressutrymme \u00e4r uppdelat i zoner (t.ex. NVMe SSD). Filsystemet m\u00f6jligg\u00f6r behandling av varje zon som en fil \u2014 det vill s\u00e4ga att anv\u00e4nda speciella API:er ist\u00e4llet f\u00f6r <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Ioctl\">ioctl<\/a><\/noindex> f\u00f6r att f\u00e5 \u00e5tkomst till Lagringssystem. En liknande metod anv\u00e4nds i databaserna RocksDB och LevelDB. Det ger m\u00f6jlighet att minska kostnaderna f\u00f6r att \u00f6verf\u00f6ra kod, som ursprungligen \u00e4r anpassad f\u00f6r att arbeta med filer.<\/p>\n<p>I Linux finns det redan en funktion f\u00f6r att interagera med blockenheter. I k\u00e4rnversion 4.13 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.zonedstorage.io\/introduction\/linux-support\/\">upptr\u00e4dde<\/a><\/noindex> \u00e4r modulen dm-zoned. Den presenterar den zonerade lagringen som en vanlig blockenhet, och Zonefs kommer att bli ett alternativ.<\/p>\n<p><img decoding=\"async\" alt=\"Linux-k\u00e4rna 5.6 \u2013 vad kan vi f\u00f6rv\u00e4nta oss i den nya versionen?\" src=\"\/wp-content\/uploads\/2020\/03\/b7fd86ad67288f76c6d55578bd191ede.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Foto \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/photos\/-_GsVJIH4fE\">Suzan Kir\u0161i\u0107<\/a><\/noindex> \u2014 Unsplash<\/i><\/p>\n<p>F\u00f6rutom implementeringen av det nya filsystemet har utvecklarna av Linux kernel \u00e4ven gjort \u00e4ndringar i befintliga system. Det har funnits <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/scan.php?page=news_item&amp;px=F2FS-Compression-5.6-Landing\">har lagts till<\/a><\/noindex> komprimeringsmekanismer <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Lempel%E2%80%93Ziv%E2%80%93Oberhumer\">LZO<\/a><\/noindex>\/<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/LZ4_(compression_algorithm)\">LZ4<\/a><\/noindex> f\u00f6r F2FS \u2013 dess st\u00f6d f\u00f6rblir experimentellt. Det m\u00e5ste aktiveras manuellt vid montering av partitionen (alternativ <i>compress_algorithm<\/i>). Uppgraderingen <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/scan.php?page=news_item&amp;px=EXT4-XFS-IO-uring-Linux-5.6\">att f\u00e5<\/a><\/noindex> EXT4 \u2013 den \u00e4r kopplad till direkt I\/O-operationer. Uppdateringspaketet presenterades av ingenj\u00f6r Ritesh Harjan fr\u00e5n IBM. Enligt <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/scan.php?page=news_item&amp;px=EXT4-DIO-Faster-DBs\">hans ord<\/a><\/noindex>, i vissa fall kan patchen \u00f6ka filsystemets prestanda med 140%.<\/p>\n<h2>Drivrutinsuppdateringar<\/h2>\n<p>\nDet kommer att finnas en ny drivrutin i k\u00e4rnan <i>cpuidle_cooling<\/i>. Dess <noindex><a rel=\"nofollow\" href=\"https:\/\/git.kernel.org\/pub\/scm\/linux\/kernel\/git\/torvalds\/linux.git\/diff\/Documentation\/driver-api\/thermal\/cpu-idle-cooling.rst?id=0a1990a2d1f2217db20b30f915f48d9b8b976949\">uppgift<\/a><\/noindex> \u2013 f\u00f6r att kyla CPU\/SoC genom att inf\u00f6ra tomg\u00e5ngscykler under drift. P\u00e5 n\u00e5got s\u00e4tt liknar den drivrutinen PowerClamp f\u00f6r Intel-processorer, men \u00e4r inte kopplad till en specifik arkitektur. Systemet <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/scan.php?page=news_item&amp;px=Linux-5.6-Generic-CPU-Cool-Idle\">utvecklarna av musikservicen Spotify. Den modifierade Spotify Lite ser ut som den fullst\u00e4ndiga versionen, men saknar m\u00e5nga inst\u00e4llningar och till\u00e5ter inte nedladdning av l\u00e5tar f\u00f6r lyssning utan internetanslutning.<\/a><\/noindex> har utvecklats av specialister fr\u00e5n Linaro, som arbetar med optimering av \u00f6ppen k\u00e4llkod f\u00f6r ARM-plattformar.<\/p>\n<p>\u00c4ven <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/scan.php?page=news_item&amp;px=Nouveau-Turing-Linux-5.6\">kommer det att l\u00e4ggas till<\/a><\/noindex> st\u00f6d f\u00f6r GeForce 20-serien (TU10x). Den relevanta drivrutinen har utvecklats av Ben Skeggs fr\u00e5n Nouveau-projektet. Tyv\u00e4rr kommer GeForce 16 (TU11x) att f\u00f6rbli \"utanf\u00f6r\". Nvidia har inte tillhandah\u00e5llit firmwarebilder som kr\u00e4vs f\u00f6r att initiera kortet. Dessutom kan de nya grafikkorten under Linux ha prestandaproblem p\u00e5 grund av avsaknad av reklockning \u2013 automatisk frekvenshantering. Tidigare har det fastst\u00e4llts att Nouveau-drivrutinerna <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/forums\/forum\/linux-graphics-x-org-drivers\/open-source-nvidia-linux-nouveau\/33776-nouveau-driver-remains-much-slower-than-nvidia-s-official-driver?p=397898#post397898\">kan fungera<\/a><\/noindex> 20\u201330% l\u00e5ngsammare \u00e4n originalen.<\/p>\n<p><img decoding=\"async\" alt=\"Linux-k\u00e4rna 5.6 \u2013 vad kan vi f\u00f6rv\u00e4nta oss i den nya versionen?\" src=\"\/wp-content\/uploads\/2020\/03\/506f8312cb8bb6e63adbcd674b6b2c28.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Foto \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/photos\/Ku0883_deww\">Andrew Abbate<\/a><\/noindex> \u2014 Unsplash<\/i><\/p>\n<p>Det nya k\u00e4rnan <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/scan.php?page=news_item&amp;px=USB4-Hits-Linux-5.6\">att st\u00f6dja<\/a><\/noindex> USB4. De n\u00f6dv\u00e4ndiga \u00e4ndringarna <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/scan.php?page=news_item&amp;px=USB4-In-Linux-5.6\">erbj\u00f6ds<\/a><\/noindex> har ingenj\u00f6rerna fr\u00e5n Intel. De modifierade den befintliga koden relaterad till Thunderbolt \u2013 det handlar om cirka tv\u00e5 tusen rader.<\/p>\n<p>Naturligtvis \u00e4r detta inte alla uppdateringar som kommer till k\u00e4rnan \u2013 till exempel <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/scan.php?page=article&amp;item=linux-56-features&amp;num=2\">kan man f\u00f6rv\u00e4nta sig<\/a><\/noindex> st\u00f6d f\u00f6r ytterligare periferienheter och n\u00e4tverksenheter. Dessutom kommer kernel 5.6 att bli det f\u00f6rsta 32-bitars k\u00e4rnan d\u00e4r <noindex><a rel=\"nofollow\" href=\"https:\/\/www.phoronix.com\/scan.php?page=news_item&amp;px=Linux-5.6-32-bit-Past-Y2038\">problemet 2038<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9F%D1%80%D0%BE%D0%B1%D0%BB%D0%B5%D0%BC%D0%B0_2038_%D0%B3%D0%BE%D0%B4%D0%B0\">kommer att l\u00f6sas.<\/a><\/noindex>I slutet av januari gjorde ingenj\u00f6rerna <noindex><a rel=\"nofollow\" href=\"https:\/\/lkml.org\/lkml\/2020\/1\/29\/355?anz=web\">de sista \u00e4ndringarna i nfsd, xfs, alsa och v4l2. De hoppas att de arton \u00e5r som \u00e5terst\u00e5r ger anv\u00e4ndare och utvecklare tid att \u00f6verg\u00e5 till kernel 5.6 (eller dess efterf\u00f6ljande versioner).<\/a><\/noindex> Material relaterade till \u00e4mnet fr\u00e5n f\u00f6retagsbloggen 1cloud.ru:<\/p>\n<blockquote><p><b>Vad vi skriver om p\u00e5 Habr:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Linux-k\u00e4rna 5.6 \u2013 vad kan vi f\u00f6rv\u00e4nta oss i den nya versionen?\" src=\"\/wp-content\/uploads\/2020\/03\/cd7098750451bf2ecc256bb7e388bb52.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/superkomputer-na-linux?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=kernel56&amp;utm_content=blog\">St\u00f6rsta delen av superdatorerna k\u00f6rs med Linux \u2014 vi diskuterar situationen<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Linux-k\u00e4rna 5.6 \u2013 vad kan vi f\u00f6rv\u00e4nta oss i den nya versionen?\" src=\"\/wp-content\/uploads\/2020\/03\/da8cd0571f38cb09ef24dd456ce97661.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/linux-server-security-advices?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=kernel56&amp;utm_content=blog\">Hur man s\u00e4krar Linux-system: 10 tips<\/a><\/noindex><\/p>\n<p><b>Analysera rekommendationer f\u00f6r skydd av personuppgifter och informationss\u00e4kerhet \u2013 vad man b\u00f6r vara uppm\u00e4rksam p\u00e5<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Linux-k\u00e4rna 5.6 \u2013 vad kan vi f\u00f6rv\u00e4nta oss i den nya versionen?\" src=\"\/wp-content\/uploads\/2020\/03\/5579f2ad8a27ee269d6c26e4a6b2f59a.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/491590\/\">F\u00f6r f\u00f6rsta g\u00e5ngen teleporterades en foton fr\u00e5n en chip till en annan<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Linux-k\u00e4rna 5.6 \u2013 vad kan vi f\u00f6rv\u00e4nta oss i den nya versionen?\" src=\"\/wp-content\/uploads\/2020\/03\/0d9707395a8bb8cf3713780e938cdae4.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/492966\/\">Hur IT-sektorn hj\u00e4lper v\u00e4rlden att sl\u00e4nga mindre mat<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Linux-k\u00e4rna 5.6 \u2013 vad kan vi f\u00f6rv\u00e4nta oss i den nya versionen?\" src=\"\/wp-content\/uploads\/2020\/03\/0fc5e0583ca26b2973b9767214f6b340.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/492386\/\">Utgivningen av Linux-k\u00e4rnan 5.6 \u00e4r planerad till slutet av mars.<\/a><\/noindex><\/p><\/blockquote>\n<p>K\u00e4lla: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/493058\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412\u044b\u0445\u043e\u0434 Linux kernel 5.6 \u043d\u0430\u043c\u0435\u0447\u0435\u043d \u043d\u0430 \u043a\u043e\u043d\u0435\u0446 \u043c\u0430\u0440\u0442\u0430. \u0412 \u043d\u0430\u0448\u0435\u043c \u0441\u0435\u0433\u043e\u0434\u043d\u044f\u0448\u043d\u0435\u043c \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0435 \u043e\u0431\u0441\u0443\u0436\u0434\u0430\u0435\u043c \u0433\u0440\u044f\u0434\u0443\u0449\u0438\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u2014 \u043d\u043e\u0432\u0443\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443, \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b WireGuard \u0438 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u043e\u0432. \u0424\u043e\u0442\u043e \u2014 lucas huffman \u2014 Unsplash \u0414\u043e\u043b\u0433\u043e\u0436\u0434\u0430\u043d\u043d\u044b\u0439 VPN-\u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b \u0414\u044d\u0432\u0438\u0434 \u041c\u0438\u043b\u043b\u0435\u0440 (David Miller), \u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0437\u0430 \u0441\u0435\u0442\u0435\u0432\u0443\u044e \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0443 Linux, \u0440\u0435\u0448\u0438\u043b \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 WireGuard. \u042d\u0442\u043e \u2014 VPN-\u0442\u0443\u043d\u043d\u0435\u043b\u044c, \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u044b\u0439 \u0432 \u0418\u0411-\u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Edge Security. [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":74854,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-74853","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412\u044b\u0445\u043e\u0434 Linux kernel 5.6 \u043d\u0430\u043c\u0435\u0447\u0435\u043d \u043d\u0430 \u043a\u043e\u043d\u0435\u0446 \u043c\u0430\u0440\u0442\u0430.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/sv\/blog\/administrirovanie\/linux-kernel-5-6-chto-zhdat-v-novoj-versii-yadra\" \/>\n\t\t<meta 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