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From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Linus Torvalds <torvalds@linux-foundation.org>
Subject: linux-2.6.23-git3: Many sysfs-related warnings in dmesg
Date: Sat, 13 Oct 2007 21:26:32 +0200
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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.

I reported it for at least one -mm of the recent -mm kernels, but no one
responded.

Greetings,
Rafael