linux-kernel - Re: Oops with PREEMPT-RT on 2.6.25.4

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Message-ID: <4831F5F7.9050900@freescale.com>
Date:	Mon, 19 May 2008 16:49:43 -0500
From:	Scott Wood <scottwood@...escale.com>
To:	Rune Torgersen <runet@...ovsys.com>
CC:	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org
Subject: Re: Oops with PREEMPT-RT on 2.6.25.4

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
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