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SubjectRe: [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U3

* Lee Revell <> wrote:

> > i regularly test it on UP. Do you have SPINLOCK_DEBUG enabled perhaps?
> > That doesnt work right now. You can enable DEBUG_SPINLOCK_SLEEP and
> Sorry, I did have that enabled. This caused a build failure with a UP
> build and a boot failure with CONFIG_SMP.

not your fault at all - i cleaned this up in my tree so that only valid
combinations can be selected, these fixes will show up in -U4.

it seems that SMP + PREEMPT_TIMING is not stable though, somehow the
latency printk's cause a crash sooner or later. I'm still debugging this
problem. Without PREEMPT_TIMING the SMP kernel is stable.

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