Ubuntu 9.04 freezes when using rt kernel
Bug #366952 reported by
Michele Gambirasi
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
I'm trying ubuntu 9.04 Jaunty on a Shuttle XPC SG33G5M with G33 chipset (GMA 3100 graphics) and core2duo E6550.
I used it for some hours with generic kernel and it seems all OK.
Now I'm trying to switch to linux-rt: after some minutes of use the system completely freeze, including mouse and keyboard, so I must reset it manually.
This happens both with 32 and 64bit, on ubuntu and ubuntustudio.
affects: | ubuntu → linux (Ubuntu) |
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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.