linux-kernel - Re: linux-2.6.23-git3: Many sysfs-related warnings in dmesg

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Message-ID: <20071016204925.GH9942@kernel.dk>
Date:	Tue, 16 Oct 2007 22:49:26 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Greg KH <greg@...ah.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Tejun Heo <htejun@...il.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: linux-2.6.23-git3: Many sysfs-related warnings in dmesg

On Tue, Oct 16 2007, Rafael J. Wysocki wrote:
> On Tuesday, 16 October 2007 06:50, Greg KH wrote:
> > On Sat, Oct 13, 2007 at 09:26:32PM +0200, Rafael J. Wysocki wrote:
> > > Hi,
> > > 
> > > There are many traces like this in my dmesg from 2.6.23-git3 (they don't
> > > appear for vanilla 2.6.23):
> > > 
> > > <4>sysfs: duplicate filename 'ethxx1' can not be created
> > > WARNING: at /home/rafael/src/linux-2.6/fs/sysfs/dir.c:425 sysfs_add_one()
> > > 
> > > Call Trace:
> > >  [<ffffffff802d1532>] sysfs_add_one+0x5c/0xc9
> > >  [<ffffffff802d2411>] sysfs_create_link+0xd1/0x12c
> > >  [<ffffffff803756da>] device_rename+0x17a/0x1db
> > >  [<ffffffff803c903d>] dev_change_name+0x114/0x20c
> > >  [<ffffffff803c9339>] dev_ifsioc+0x204/0x2d0
> > >  [<ffffffff803c9925>] dev_ioctl+0x520/0x633
> > >  [<ffffffff803bf445>] sk_alloc+0x37/0x10c
> > >  [<ffffffff8024b977>] up_read+0x9/0xb
> > >  [<ffffffff803bc65e>] sock_ioctl+0x1fe/0x20c
> > >  [<ffffffff8029b34a>] do_ioctl+0x2a/0x77
> > >  [<ffffffff8029b5e8>] vfs_ioctl+0x251/0x26e
> > >  [<ffffffff8029b664>] sys_ioctl+0x5f/0x83
> > >  [<ffffffff8020bd4e>] system_call+0x7e/0x83
> > > 
> > > net ethxx1: device_rename: sysfs_create_symlink failed (-17)
> > > sysfs: duplicate filename 'eth1' can not be created
> > > 
> > > Everything seems to work, but this just looks fishy.
> > 
> > This is a userspace program renaming your network device to a name that
> > is already in use.  What distro and release is this?
> 
> openSUSE 10.2, with some updates (not the most recent, though).

Same thing happens in 10.3, rendering current git unusable for me with
iwl3945.

-- 
Jens Axboe

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