linux-kernel - Re: [PATCH V3] VIA IRQ quirk behaviour change

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Message-Id: <1158064640.13591.5.camel@localhost.localdomain>
Date:	Tue, 12 Sep 2006 13:37:20 +0100
From:	Sergio Monteiro Basto <sergio@...giomb.no-ip.org>
To:	Stian Jordet <liste@...det.net>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, Daniel Drake <dsd@...too.org>,
	akpm@...l.org, torvalds@...l.org, jeff@...zik.org, greg@...ah.com,
	cw@...f.org, bjorn.helgaas@...com, linux-kernel@...r.kernel.org,
	harmon@....edu, len.brown@...el.com, vsu@...linux.ru
Subject: Re: [PATCH V3] VIA IRQ quirk behaviour change

On Mon, 2006-09-11 at 23:38 +0200, Stian Jordet wrote: 
> On man, 2006-09-11 at 22:23 +0100, Sergio Monteiro Basto wrote:
> > On Mon, 2006-09-11 at 22:16 +0200, Stian Jordet wrote:
> > > On man, 2006-09-11 at 16:33 +0100, Sergio Monteiro Basto wrote:
> > > > On Sun, 2006-09-10 at 21:21 +0200, Stian Jordet wrote:
> > > > > On søn, 2006-09-10 at 20:41 +0100, Alan Cox wrote:
> > > > > > Feel free to cc me the lspci data and partial diagnostics and I'll try
> > > > > > and help too.
> > > > > 
> > > > > Attached is lspci -xxx and dmesg from 2.6.18-rc6.
> > > > > http://bugzilla.kernel.org/show_bug.cgi?id=2874 has some further
> > > > > information about this (stupid) motherboard. Anything else you need?
> > > > > 
> > > > > If anyone can help me with this, I'll promise to send the hero some
> > > > > boxes of Norwegian beer!
> > > > > 
> > > > > 
> > > > Hi, this isn't the case of one USB with IO-APIC-level on legacy
> > > > interrupts ? 
> > > >  11:       5333       5326   IO-APIC-level  uhci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb3
> > > > 
> > > > if it is , was resolved with this [PATCH V3] VIA IRQ quirk behaviour change ? 
> > > 
> > > I have no idea what you mean here, but it's by no means fixed by that
> > > patch, actually it just got worse (usb didn't work, but still got
> > > interrupts from eth0 - and it still used irq 11)
> > 
> > What ?! Aren't we talk about this computer 
> > http://lkml.org/lkml/2006/9/6/178
> > and this 
> > http://lkml.org/lkml/2006/9/7/220
> > 
> > if you don't get your device quirked we have add your hardware to the
> > list ...
> 
> That last patch there, made my system work (but that bugzilla bug is
> still a problem). So with that last patch, my system works just as good
> as it always has, if that's what you're trying to ask :)

Ok, as a quick answer, you have a very primitive VIA SMP board, which
make me remember my old laptop. 
I maintain what a had write in previous emails about this system. 
Seeing the configuration of irqs on windows, USB are in 9, so could be a
clue.
If I had your board, I'll try not quirk USB (cause quirk put USB in 11)
and make USB interrupts work as IO-APIC-edge.
9:       nnnn       nnnn   IO-APIC-edge  uhci_hcd:usb1, uhci_hcd:usb2,
uhci_hcd:usb3

--
Sérgio M. B. 

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