rtkit-daemon causes system freeze

[Ettore Atalan]

Binary package hint: rtkit

Hi

OS: Kubuntu 11.04 x64
CPU: Core2Duo 1,8 GHz
RAM: 2 GB
Graphics: Intel GMA 4500MHD

I was watching a HD video in VLC, when the rtkit-daemon make an appearance and constantly decreases VLC's performance until system freeze.

Regards,
Atalanttore
---
Architecture: amd64
DistroRelease: Ubuntu 11.04
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
Package: rtkit 0.9-2
PackageArchitecture: amd64
ProcEnviron:
 LANGUAGE=
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.38-11.47-generic 2.6.38.8
Tags: natty
Uname: Linux 2.6.38-11-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare saned

[Daniel T Chen (crimsun)]

Hmm, this sounds more like a hardware or linux bug. Can you confirm this using a fully updated 11.04?

[Ettore Atalan (atalanttore)]

Yes, i'm using a fully updated 11.04.

[Ettore Atalan (atalanttore)]

apport information

[Launchpad Janitor (janitor)]

[Expired for rtkit (Ubuntu) because there has been no activity for 60 days.]

[Tim White (timwhite88)]

Similar problem.
Trying to debug via ssh and any attempts at top, ps, lsmod, tail -f /var/log/syslog and anything else that runs for more than about 1/2 second, freezes.
Running rtkitctl -k stops the daemon, and instantly everything resumes running without a problem. CPU usage is at 100% when rtkit is running.

Any tips on how we can debug this? This is on Ubuntu 11.10 fully updated, 4Gb ram, P4. As rtkit seems to be related to pulseaudio, the sound card is a VT8237A/VT8251 HDA Controller.

For now I've removed rtkit to see if the system functions fine without it.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.