Subject: Re: Oops with PREEMPT-RT on 2.6.25.4

From: Scott Wood <[email-masked]>
Date: Mon, 19 May 2008 16:49:43 -0500

Rune Torgersen wrote:
> Scott Wood wrote:
>> Try calling irq_set_chip_and_handler() with handle_level_irq, rather
>> than irq_set_chip().  The -rt patch doesn't seem to have threadified
>>   the __do_IRQ() path.
> 
> The demuxer is setting itself up with set_irq_chained handler(), any
> pointers on how to change to irq_set_chip_and_handler()?

No, I mean the call to set_irq_chip() in pci_pic_host_map() where it 
sets up the IRQs it manages, not the cascade IRQ itself.

-Scott