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

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Message-ID: <20061204231359.GB9413@kroah.com>
Date:	Mon, 4 Dec 2006 15:13:59 -0800
From:	Greg KH <greg@...ah.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, Jeff Garzik <jeff@...zik.org>
Subject: Re: 2.6.19-rc6-mm2: uli526x only works after reload

On Fri, Dec 01, 2006 at 02:08:28AM +0100, Rafael J. Wysocki wrote:
> On Thursday, 30 November 2006 22:32, Rafael J. Wysocki wrote:
> > [Trimmed the Cc list a bit.]
> > 
> > On Thursday, 30 November 2006 22:12, Andrew Morton wrote:
> > > On Thu, 30 Nov 2006 21:21:27 +0100
> > > "Rafael J. Wysocki" <rjw@...k.pl> wrote:
> > > 
> > > > On Thursday, 30 November 2006 02:04, Rafael J. Wysocki wrote:
> > > > > On Thursday, 30 November 2006 00:26, Andrew Morton wrote:
> > > > > > On Thu, 30 Nov 2006 00:08:21 +0100
> > > > > > "Rafael J. Wysocki" <rjw@...k.pl> wrote:
> > > > > > 
> > > > > > > On Wednesday, 29 November 2006 22:31, Rafael J. Wysocki wrote:
> > > > > > > > On Wednesday, 29 November 2006 22:30, Andrew Morton wrote:
> > > > > > > > > On Wed, 29 Nov 2006 21:08:00 +0100
> > > > > > > > > "Rafael J. Wysocki" <rjw@...k.pl> wrote:
> > > > > > > > > 
> > > > > > > > > > On Wednesday, 29 November 2006 20:54, Rafael J. Wysocki wrote:
> > > > > > > > > > > On Tuesday, 28 November 2006 11:02, Andrew Morton wrote:
> > > > > > > > > > > > 
> > > > > > > > > > > > Temporarily at
> > > > > > > > > > > > 
> > > > > > > > > > > > http://userweb.kernel.org/~akpm/2.6.19-rc6-mm2/
> > > > > > > > > > > > 
> > > > > > > > > > > > Will appear eventually at
> > > > > > > > > > > > 
> > > > > > > > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.19-rc6/2.6.19-rc6-mm2/
> > > > > > > > > > > 
> > > > > > > > > > > A minor issue: on one of my (x86-64) test boxes the uli526x driver doesn't
> > > > > > > > > > > work when it's first loaded.  I have to rmmod and modprobe it to make it work.
> > > > > > > > > 
> > > > > > > > > That isn't a minor issue.
> > > > > > > > > 
> > > > > > > > > > > It worked just fine on -mm1, so something must have happened to it recently.
> > > > > > > > > > 
> > > > > > > > > > Sorry, I was wrong.  The driver doesn't work at all, even after reload.
> > > > > > > > > > 
> > > > > > > > > 
> > > > > > > > > tulip-dmfe-carrier-detection-fix.patch was added in rc6-mm2.  But you're
> > > > > > > > > not using that (corrent?)
> > > > > > > > > 
> > > > > > > > > git-netdev-all changes drivers/net/tulip/de2104x.c, but you're not using
> > > > > > > > > that either.
> > > > > > > > > 
> > > > > > > > > git-powerpc(!) alters drivers/net/tulip/de4x5.c, but you're not using that.
> > > > > > > > > 
> > > > > > > > > Beats me, sorry.  Perhaps it's due to changes in networking core.  It's
> > > > > > > > > presumably a showstopper for statically-linked-uli526x users.  If you could
> > > > > > > > > bisect it, please?  I'd start with git-netdev-all, then tulip-*.
> > > > > > > > 
> > > > > > > > OK, but it'll take some time.
> > > > > > > 
> > > > > > > OK, done.
> > > > > > > 
> > > > > > > It's one of these (the first one alone doesn't compile):
> > > > > > > 
> > > > > > > git-netdev-all.patch
> > > > > > > git-netdev-all-fixup.patch
> > > > > > > libphy-dont-do-that.patch
> > > > 
> > > > Hm, all of these patches are the same as in -mm1 which hasn't caused any
> > > > problems to appear on this box.
> > > > 
> > > > So, it seems there's another change between -mm1 and -mm2 that causes this
> > > > to happen.
> > > > 
> > > 
> > > It would be nice to eliminate libphy-dont-do-that.patch if poss - that was
> > > a rogue akpm patch aimed at some incomprehensible gobbledigook in the
> > > netdev tree (and to fix the current_is_keventd-not-exported-to-modules
> > > bug).
> > 
> > Unfortunately the kernel doesn't compile without it ...
> > 
> > Well, I think I'll try to find the patch that contains the change which has
> > triggered this.
> 
> It looks like the winner is:
> 
> gregkh-driver-driver-core-fixes-sysfs_create_link-retval-checks-in-core.c.patch
> 
> Without this patch there are no problems, with this patch applied the problems
> (with uli526x, when it's the second interface and the first one is not used)
> occur, almost 100% of the time.

Ok, I've now removed this from my tree.

thanks,

greg k-h
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