Comment 19 for bug 290498

See the same crashes on a intel dual core which is sitting in our studio.
I can't confirm the 100% IOwait though. My cpu's seems to be in good shape.

2009/5/12 vivichrist <email address hidden>

> I have an hp compaq v5001au with turion x2 processor and kernel
> 2.6.28-3.1 hangs after a good 10minutes of boot. one of the cores is in
> 100% IOWait state.
>
> ** Attachment added: "kernel log"
> http://launchpadlibrarian.net/26630794/kern.log
>
> --
> linux-rt restricted to one CPU
> https://bugs.launchpad.net/bugs/290498
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “linux-rt” source package in Ubuntu: Fix Released
>
> Bug description:
> Opening a new report as advised by Andrew Hunter in #281276.
>
> The linux-rt 2.6.27-3.8 release only uses one CPU (or core). Perhaps of
> note is that the rt variant does not set CONFIG_NR_CPUS which is set to 64
> in 2.6.27-7-generic and is set to 8 in the old 2.6.24-21-rt. It also does
> not set CONFIG_SMP which is set to y on the other two.
>
> After booting 2.6.27-3-rt dmesg contains this line:
>
> [ 0.000000] WARNING: NR_CPUS limit of 1 reached. Processor ignored.
>
> Compared to booting the non-rt 2.6.27-7-generic:
>
> [ 0.000000] SMP: Allowing 2 CPUs, 0 hotplug CPUs
> [ 0.000000] PERCPU: Allocating 64928 bytes of per cpu data
> [ 0.000000] NR_CPUS: 64, nr_cpu_ids: 2, nr_node_ids 1
>