linux-kernel - Re: AGPGart / AMD K7

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Message-ID: <20070420232522.GA10949@kroah.com>
Date:	Fri, 20 Apr 2007 16:25:22 -0700
From:	Greg KH <greg@...ah.com>
To:	Dave Jones <davej@...hat.com>, "Preston A. Elder" <prez@...h.net>,
	linux-kernel@...r.kernel.org
Subject: Re: AGPGart / AMD K7

On Fri, Apr 20, 2007 at 04:33:42PM -0400, Dave Jones wrote:
> On Fri, Apr 20, 2007 at 04:22:06PM -0400, Preston A. Elder wrote:
>  > Dave, Greg,
>  > 
>  > Here is the trace with 2.6.20.6
>  > 
>  > I added back in my trace code, as you see.  As you can also see,
>  > agp_amdk7_probe is still not called.
> 
> Try looking down in __driver_attach()
> The fact that we're not calling the ->probe function is quite bizarre.
> 
> It could be this in __driver_attach
> 
>         if (!dev->driver)
>                 driver_probe_device(drv, dev);
> 
> Though that'd be odd.
> 
> Putting a #define DEBUG 1 in drivers/base/dd.c may also yield some clues.

Setting CONFIG_DEBUG_DRIVER automatically enables this also and might
provide some more hints.

thanks,

greg k-h
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