When I started Ardour yesterday, it was complaining about a memlock issue. I fixed it for my install, I only want to inform about this issue. '@users - memlock 1024' overrides 'memlock unlimited' of the audio or realtime group. [rocketmouse@archlinux ~]$ cat /etc/security/limits.d/10-gcr.conf @users - memlock 1024 # vim:set ft=limits: [rocketmouse@archlinux ~]$ pacman -Qo /etc/security/limits.d/10-gcr.conf /etc/security/limits.d/10-gcr.conf is owned by gcr 3.28.0-4 [rocketmouse@archlinux ~]$ pacman -Qi gcr Name : gcr Version : 3.28.0-4 Description : A library for bits of crypto UI and parsing Architecture : x86_64 URL : https://gitlab.gnome.org/GNOME/gcr Licenses : GPL2 Groups : None Provides : None Depends On : dconf gtk3 libgcrypt p11-kit Optional Deps : None Required By : gnome-keyring gnome-online-accounts libcryptui libgdata nm-connection-editor seahorse Optional For : pinentry Conflicts With : None Replaces : None Installed Size : 5.47 MiB Packager : Jan Alexander Steffens (heftig) <jan.steffens@gmail.com> Build Date : Tue 21 Aug 2018 03:18:25 PM CEST Install Date : Tue 21 Aug 2018 09:26:46 PM CEST Install Reason : Installed as a dependency for another package Install Script : No Validated By : Signature