Re: [patch] voluntary-preempt-2.6.8-rc3-O5

Ingo Molnar
2004-08-11T09:01:23Z

* Lee Revell <rlrevell@joe-job.com> wrote:

> > (another thing: could you turn on CONFIG_DEBUG_HIGHMEM,
> > CONFIG_DEBUG_SPINLOCK and CONFIG_DEBUG_SPINLOCK_SLEEP? Lets make sure
> > that what we are seeing here is not somehow caused by atomicity
> > violations.)
>
> I have highmem disabled per your previous request. Should I turn it
> back on?

nope, please keep it disabled still. (You can turn the C3 CPU option
back on though, it doesnt seem to have any impact on latency.)

then it's just the spinlock debugging options that should be enabled.
(they make sense on UP kernels too, if CONFIG_PREEMPT is enabled.)

Ingo