Ingo Molnar wrote:
> * Michal Schmidt <xschmi00@stud.feec.vutbr.cz> wrote:
>>I'm getting these BUGs when I use netconsole with Real-Time Preemption
>>(but netconsole works):
> 
> 
> you are getting them because interrupts get disabled somewhere in the
> path. Do your changes perhaps introduce a local_irq_save() or
> local_irq_disable()?
> 

I'm attaching my sk98lin patch. It uses disable_irq(). It's inspired by 
8139too.

> (in PREEMPT_REALTIME spin_lock_irq*() does not disable interrupts for
> mutex-based spinlocks, so the only way to get irqs disabled is
> explicitly.)
> 
> 	Ingo

Michal