I'm also getting lockups on my Ubuntu Studio 9.04 system. I've tried the -rt kernel, the generic kernel and Daniel T Chen's kernel (see #367671). At first I suspected an issue with PulseAudio running rt SCHED_FIFO and starving the CPU. But now PulseAudio is not running RT on my system and I'm getting complete lockups with generic and Daniel's kernel and with the -rt kernel I get lockups related to the root file system (applications continue to run, but any process attempting to write to the rootfs locks up). I created a bug for this last issue: #372856
Are you using ext4? I suspect that might be the problem with the generic kernels locking up too, but I haven't been able to get a OOPs message from those, due to complete system lockup. -- Ubuntu 9.04 freezes when using rt kernel https://bugs.launchpad.net/bugs/366952 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs