On 11 October 2012 at 9:07, Jeremy Jongepier wrote:
> On 10/11/2012 08:33 AM, Kevin Cosgrove wrote:
Nice to know.
> > 2. chrt: failed to set pid 0's policy: Operation not permitted
A comment at the above link says, "If [the grep command]
returns CONFIG_IRQ_FORCED_THREADING=y and CONFIG_PREEMPT=y
then your kernel is using IRQ threading and you don't have
to proceed with the following steps. If it only returns
CONFIG_IRQ_FORCED_THREADING=y you can add the threadirqs boot
option as described..." My grep was in the 2nd case, with
only CONFIG_IRQ_FORCED_THREADING set to "y", so I proceeded
with the rest of the "threadirqs" instructions related to grub.
That didn't seem to work.
> > I altered my /boot/grub2/grub.cfg file to include
I left all of that in there from Fedora's installation of the kernel.
> Check if your kernel is preemtible (at least, I think that might be a
# CONFIG_PREEMPT_RCU is not set
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT is not set
> (there's no real-time kernel available for FC17?).
CCRMA has kernel-rt-3.4.11-1.rt19.2.fc17.ccrma.x86_64 but it
doesn't play nicely with my nVidia card and X config. I changed
the X config to use the nouveau driver, which got it to boot to
level 5 at least. But the geometry is not good and that driver
ignores my 2nd display. I found A LOT of potentially useful
information with a websearch for enabling an nVidia driver with a
CCRMA kernel. Sorting that out is a possibility.
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