Hi, my apologies for breaking the thread. I subscribed a few minutes ago and read the archive, IOW I didn't receive a mail with the required header for this reply. In my experiences it's wise to keep several rt patched kernel versions, just in case a patched kernel should cause issues. The mainline/stable as well as the longterm rt kernel from AUR as well as those provided by the Arch audio repo a while back, not always worked with e.g. some old AMD machines or at least not without a tailored config. For my new Intel machine I currently try to keep up with the latest patch from the 4.11/, 4.13/ and 4.14/ tree [1]. I didn't update 4.14 to the current version, since there's is an issue with building the modules for the version of virtualbox I'm using. For the Arch repository it wouldn't be as easy to maintain a rt patched kernel, as it is to provide a vanilla kernel with a config that is good for pro-audio, when booted with threadirqs. Ubuntu provides a quasi vanilla kernel "lowlatency", other than linux from Arch's core, it comes with the feature, that it doesn't require a bootloader entry "treadirqs" [3]. Btw. it wouldn't be possible to stay in sync with linux and linux-rt from Arch's core, since the rt project doesn't provide a patch for each available kernel release. Regards, Ralf [1] [root@moonstudio weremouse]# systemd-nspawn -qD /mnt/archlinux/ 2>/dev/null pacman -Q linux-rt{,-cornflower,-pussytoes}|awk '{print $2}' 4.13.13_rt5-1 4.11.12_rt16-1 4.14_rt1-1 [2] [root@moonstudio weremouse]# apt list -qq linux-lowlatency linux-lowlatency/xenial-updates,xenial-security,now 4.4.0.101.106 amd64 [installed] [3] [root@moonstudio weremouse]# grep threadirqs /mnt/archlinux/boot/syslinux/syslinux.cfg MENU LABEL Arch Linux ^threadirqs APPEND root=LABEL=archlinux ro threadirqs