{"id":236219,"date":"2026-04-27T09:27:00","date_gmt":"2026-04-27T13:27:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/04\/27\/with-linux-7-1-the-mainline-kernel-now-supports-real-time-rt-on-arm\/"},"modified":"2026-04-27T10:05:07","modified_gmt":"2026-04-27T14:05:07","slug":"with-linux-7-1-the-mainline-kernel-now-supports-real-time-rt-on-arm","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/04\/27\/with-linux-7-1-the-mainline-kernel-now-supports-real-time-rt-on-arm\/","title":{"rendered":"With Linux 7.1 The Mainline Kernel Now Supports Real-Time “RT” On ARM"},"content":{"rendered":"

With Linux 7.1 The Mainline Kernel Now Supports Real-Time “RT” On ARM<\/a><\/p>\n

https:\/\/www.phoronix.com\/news\/Linux-7.1-ARM-RT<\/a><\/p>\n

Publish Date: 2026-04-27 09:27:00<\/a><\/p>\n

Source Domain: www.phoronix.com<\/a><\/p>\n

The Linux 7.1 mainline kernel will allow building a real-time “PREEMPT_RT” kernel for the ARM architecture with no longer needing any out-of-tree patches.<\/p>\n

While there has been mainline Linux kernel support for real-time (RT) on x86\/x86_64, ARM64 (AArch64), and RISC-V since Linux 6.12 and LoongArch RT since Linux 6.13, only now is the ARM (non-ARM64\/AArch64) support for older SoCs seeing mainline real-time support with Linux 7.1.\n<\/p>\n

The ARM support for real-time had continued to be carried by the few remaining out-of-tree RT patches but for Linux 7.1 the final hurdles have been overcome to get all the necessary bits in mainline. Prior to the Linux 7.1-rc1 release this past weekend,
\n
this Git merge happened that cleaned up the ARM fault handling and in turn allowing PREEMPT_RT to work for mainline ARM Linux builds.
\n<\/p>\n

\"ARM<\/p>\n

Indeed with today’s v7.1-rc1-rt1 patch release, it notes all the ARM patches are gonee with “everything required” having made it into Linux 7.1-rc1.<\/p>\n

As for what the out-of-tree RT patch queue is looking like these days, the bulk are some fixes to the Intel i915 DRM driver, adding a \/sys\/kernel\/realtime entry to indicate it’s a real-time kernel, and the remaining patches yet to be mainlined for enabling real-time support on PowerPC. The current patch queue as of Linux 7.1 Git can be found via this Git branch.<\/p>\n

Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

With Linux 7.1 The Mainline Kernel Now Supports Real-Time “RT” On ARM https:\/\/www.phoronix.com\/news\/Linux-7.1-ARM-RT Publish Date:…<\/p>\n","protected":false},"author":1,"featured_media":236220,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/www.phoronix.net\/image.php?id=2026&image=arm_rt","fifu_image_alt":"","footnotes":""},"categories":[48],"tags":[71],"class_list":["post-236219","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux","tag-linux"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/236219"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=236219"}],"version-history":[{"count":1,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/236219\/revisions"}],"predecessor-version":[{"id":236221,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/236219\/revisions\/236221"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/236220"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=236219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=236219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=236219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}