I can reliably reproduce this:
1. Inside several aarch64 systemd-machined containers (with PrivateUsers=0 in
nspawn conf) with focal and running Gnome Shell session (accessed via TigerVNC
server). Hosts in NanoPC-T4.
2. On one bare metal NanoPC-T4 host with focal, running Gnome Shell Wayland
session. No container/virtualization stuff, only bare metal.
Symptoms looks the same?
~$ sudo /usr/libexec/rtkit-daemon --stderr
rtkit-daemon[5786]: Successfully called chroot.
rtkit-daemon[5786]: Successfully dropped privileges.
rtkit-daemon[5786]: Successfully limited resources.
rtkit-daemon[5786]: pthread_create failed: Resource temporarily unavailable
rtkit-daemon[5786]: Demoting known real-time threads.
rtkit-daemon[5786]: Demoted 0 threads.
With --no-drop-privileges it works:
~$ sudo /usr/libexec/rtkit-daemon --stderr --no-drop-privileges
rtkit-daemon[5781]: Successfully called chroot.
rtkit-daemon[5781]: Successfully limited resources.
rtkit-daemon[5781]: Running.
rtkit-daemon[5781]: Canary thread running.
rtkit-daemon[5781]: Watchdog thread running.
However, in both cases I have to use Armbian kernel.
For the record, on RPi3B running generic Ubuntu 20.04 aarch64 image (boot via
UEFI) this issue is not reproducible.
I can help with further debug here, or my issue is different and I have
to go to Armbian forum? In the former case what exactly I need to de to
help debug this?
** Changed in: rtkit (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1871543
Title:
rtkit fails to start in focal "pthread_create failed: Resource
temporarily unavailable"
Status in rtkit package in Ubuntu:
Confirmed
Bug description:
I was debugging something else and found rtkit broken on my system.
Apr 08 06:09:22 Keschdeichel rtkit-daemon[1726502]: Successfully called
chroot.
Apr 08 06:09:22 Keschdeichel rtkit-daemon[1726502]: Successfully dropped
privileges.
Apr 08 06:09:22 Keschdeichel rtkit-daemon[1726502]: Successfully limited
resources.
Apr 08 06:09:22 Keschdeichel rtkit-daemon[1726502]: pthread_create failed:
Resource temporarily unavailable
Apr 08 06:09:22 Keschdeichel rtkit-daemon[1726502]: Canary thread running.
Apr 08 06:09:22 Keschdeichel rtkit-daemon[1726502]: Exiting canary thread.
Apr 08 06:09:22 Keschdeichel rtkit-daemon[1726502]: Demoting known real-time
threads.
Apr 08 06:09:22 Keschdeichel rtkit-daemon[1726502]: Demoted 0 threads
That state is reproducible through restarts.
I haven't looked any further yet.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: rtkit 0.12-4
ProcVersionSignature: Ubuntu 5.3.0-45.37~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-45-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu24
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Apr 8 07:59:58 2020
InstallationDate: Installed on 2018-10-12 (543 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
SourcePackage: rtkit
UpgradeStatus: Upgraded to focal on 2020-04-03 (4 days ago)
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