netdev - Re: 2.6.19-rc6-mm2: uli526x only works after reload

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Message-Id: <200612020107.40214.rjw@sisk.pl>
Date:	Sat, 2 Dec 2006 01:07:39 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Greg KH <greg@...ah.com>
Cc:	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	tulip-users@...ts.sourceforge.net, netdev@...r.kernel.org,
	Jeff Garzik <jeff@...zik.org>,
	Valerie Henson <val_henson@...ux.intel.com>
Subject: Re: 2.6.19-rc6-mm2: uli526x only works after reload

On Friday, 1 December 2006 02:20, Greg KH wrote:
> On Wed, Nov 29, 2006 at 06:18:09PM -0800, Andrew Morton wrote:
> > On Thu, 30 Nov 2006 02:04:15 +0100
> > "Rafael J. Wysocki" <rjw@...k.pl> wrote:
> > 
> > > > > 
> > > > > git-netdev-all.patch
> > > > > git-netdev-all-fixup.patch
> > > > > libphy-dont-do-that.patch
> > > > 
> > > > Are you able to eliminate libphy-dont-do-that.patch?
> > > > 
> > > > > Is a broken-out version of git-netdev-all.patch available from somewhere?
> > > > 
> > > > Nope, and my few fumbling attempts to generate the sort of patch series
> > > > which you want didn't work out too well.  One has to downgrade to
> > > > git-bisect :(
> > > > 
> > > > What does "doesn't work" mean, btw?
> > > 
> > > Well, it turns out not to be 100% reproducible.  I can only reproduce it after
> > > a soft reboot (eg. shutdown -r now).
> > > 
> > > Then, while configuring network interfaces the system says the interface name
> > > is ethxx0, but it should be eth1 (eth0 is an RTL-8139, which is not used).  Now
> > > if I run ifconfig, it says:
> > > 
> > > eth0: error fetching interface information: Device not found
> > > 
> > > and that's all (normally, ifconfig would show the information for lo and eth1,
> > > without eth0).  Moreover, 'ifconfig eth1' says:
> > > 
> > > eth1: error fetching interface information: Device not found
> > > 
> > > Next, I run 'rmmod uli526x' and 'modprobe uli526x' and then 'ifconfig' is
> > > still saying the above (about eth0), but 'ifconfig eth1' seems to work as
> > > it should.  However, the interface often fails to transfer anything after
> > > that.
> > 
> > Lovely.  Sounds like some startup race, perhaps against userspace.
> > 
> > Is CONFIG_PCI_MULTITHREAD_PROBE set?  (err, we meant to disable that for
> > 2.6.19 but forgot).
> 
> No, I disabled it for 2.6.19, -mm turns it back on :)

But it's not set in my .config.

Greetings,
Rafael


-- 
You never change things by fighting the existing reality.
		R. Buckminster Fuller
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