linux-kernel - Re: Regression: Bisected, IRQ and MSI allocations screwed without sparse irq

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Message-ID: <alpine.LFD.2.00.0811211307550.3179@localhost.localdomain>
Date:	Fri, 21 Nov 2008 13:11:43 -0800 (PST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Jesper Dangaard Brouer <hawk@...u.dk>
cc:	Jesper Dangaard Brouer <jdb@...x.dk>,
	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Robert Olsson <Robert.Olsson@...a.slu.se>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: Regression: Bisected, IRQ and MSI allocations screwed without
 sparse irq

On Fri, 21 Nov 2008, Jesper Dangaard Brouer wrote:
> > Ok, I queue it for mainline. This solves just the number of irqs
> > limitation, the rmmod problem still persists, right ?
> 
> It solves both the irq limit and the NIU driver unload bug.

I don't believe that it solves it. It hides it at the best.
 
> We should give it a good description.
> I have cooked up a patch with a description below, will you accept that?
> 
> Who's tree do you want it to go upsteam via?
> (You are listed as one of the X86 maintainers, but Ingo's tree seems more
> up-to-date. My patch below is agains DaveM's tree)

I queued it already with a description of the irq nr. problem. 

The rmmod problem is something different and should be investigated
thoroughly instead of declaring it solved by magic.
 
Thanks,

	tglx
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