netdev - Re: 2.6.23-rc1 sky2 boot crash in sky2_mac

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Date:	Wed, 25 Jul 2007 11:27:52 +0100
From:	Stephen Hemminger <shemminger@...ux-foundation.org>
To:	Florian Lohoff <flo@...822.org>
Cc:	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: 2.6.23-rc1 sky2 boot crash in sky2_mac_intr

On Wed, 25 Jul 2007 09:22:02 +0200
Florian Lohoff <flo@...822.org> wrote:

> On Wed, Jul 25, 2007 at 01:30:31AM +0200, Michal Piotrowski wrote:
> > >I'll try the above and keep you posted. The crash itself seems to be a
> > >2.6.23-rc1 regression though. I never experienced this with 2.6.22-rc5
> > >which i was running before.
> > 
> > Can you try to figure out what is causing this crash and then use 
> > git-bisect?
> 
> Are there so many changes between 2.6.22-rc5 and 2.6.23-rc1 for the sky2?
> 
> As the crash is not that reproducible, just occasionally on boot i guess
> bisecting is more or less waste of time.
> 
> Flo
> -- 
> Florian Lohoff                  flo@...822.org             +49-171-2280134
> 	Those who would give up a little freedom to get a little 
>           security shall soon have neither - Benjamin Franklin

I would suspect these as possible causes of the regression was one of these
patches.

commit 8f70920f2f2a699b4ad35e625071cd92f4ba6ca3
Author: Stephen Hemminger <shemminger@...ux-foundation.org>
Date:   Mon Jun 4 17:23:25 2007 -0700

    sky2: GPIO register
    
    The General Purpose I/O register is yet another hardware workaround
    catchall. Enable workaround that vendor driver does to stay
    but for bug compatiable.
    
    Signed-off-by: Stephen Hemminger <shemminger@...ux-foundation.org>
    Signed-off-by: Jeff Garzik <jeff@...zik.org>

commit 451af33552286b426940a32126bd3ece243223a3
Author: Stephen Hemminger <shemminger@...ux-foundation.org>
Date:   Mon Jun 4 17:23:24 2007 -0700

    sky2: enable clocks before probe
    
    Catch-22: On Yukon EX (88E8071) need to have internal clocks enabled
    before reading chip id. It is harmless on other chips.
    
    Signed-off-by: Stephen Hemminger <shemminger@...ux-foundation.org>
    Signed-off-by: Jeff Garzik <jeff@...zik.org>

commit fc99fe0618f355b708ce88fedaca9783072ac3d5
Author: Stephen Hemminger <shemminger@...ux-foundation.org>
Date:   Mon Jun 4 17:23:22 2007 -0700

    sky2: Add PCI device specfic register 4 & 5
    
    Need to setup more PCI control control registers are on Yukon EX.
    Some of these also exist on Yukon EC-U as well.
    
    Signed-off-by: Stephen Hemminger <shemminger@...ux-foundation.org>
    Signed-off-by: Jeff Garzik <jeff@...zik.org>

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