e1000e oops

Linux tau 2.6.23-rc8-mm2-686 #1 SMP Wed Oct 3 23:56:32 CEST 2007 i686 GNU/Linux

eth0 renamed to eth1
sysfs: duplicate filename 'eth1' can not be created

WARNING: at fs/sysfs/dir.c:433 sysfs_add_one()
 [<c0104f9c>] dump_trace+0x68/0x1d5
 [<c0105121>] show_trace_log_lvl+0x18/0x2c
 [<c0105b9b>] show_trace+0xf/0x11
 [<c0105c81>] dump_stack+0x12/0x14
 [<c01ac02e>] sysfs_add_one+0x54/0xb8
 [<c01acc2a>] sysfs_create_link+0xb3/0x125
 [<c023c05f>] device_rename+0x13d/0x196
 [<c025a970>] dev_change_name+0x137/0x205
 [<c025b12c>] dev_ioctl+0x357/0x44f
 [<c017b05f>] do_ioctl+0x1f/0x62
 [<c017b2d9>] vfs_ioctl+0x237/0x249
 [<c017b330>] sys_ioctl+0x45/0x5d
 [<c0103eda>] syscall_call+0x7/0xb
 [<b7edbde4>] 0xb7edbde4
 =======================

net eth1: device_rename: sysfs_create_symlink failed (-17)

00:19.0 Ethernet controller [0200]: Intel Corporation 82801I (ICH9 Family) Gigabit Ethernet Controller [8086:294c] (rev 02)
Subsystem: Intel Corporation Unknown device [8086:0001]
Flags: bus master, fast devsel, latency 0, IRQ 218
Memory at 50380000 (32-bit, non-prefetchable) [size=128K]
Memory at 503a4000 (32-bit, non-prefetchable) [size=4K]
I/O ports at 20e0 [size=32]
Capabilities: [c8] Power Management version 2
Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+
Capabilities: [e0] Vendor Specific Information

no idea if aboves belongs to netdev or sysfs dep.

maks

I'm seeing the same when removing/inserting network drivers frequently, ixgbe does the same thing: (git://davem/net-2.6.24)

ixgbe 0000:01:00.0: (PCI Express:2.5Gb/s:Width x8) 00:1a:64:3b:81:c3 ixgbe 0000:01:00.0: MAC: 0, PHY: 0, PBA No: d95854-003 ixgbe 0000:01:00.0: Intel(R) 10 Gigabit Network Connection net eth2: device_rename: sysfs_create_symlink failed (-17)

but I can't make it throw a stack trace.

perhaps one of the sysfs knowledgeable people can take a look at this. We might be doing something wrong in e1000e / ixgbe at setup time, but I have no idea what.

Auke

From: maximilian attems <[email protected]>
Date: Fri, 5 Oct 2007 15:11:15 +0200

...

I think the report belongs to udev.

It tries to rename network devices even if they already have the name it desires.

To reach this path you need to run the equivalent of:
ip link set eth0 name eth1

I have seen this a bit and my memory is that the error is generally harmless. It is trying to create a symlink with the same name as the directory or something like that. Which makes with one setting of CONFIG_SYSFS_DEPRECATED but not the other.

So I don't believe this is a driver bug, and I suspect the renames come from using something like /etc/mactab which forces ethernet devices with specific mac addresses to specific ethernet device names.

With whatever is sitting in my development tree I'm pretty certain this error isn't present. I don't recall if I did anything specific to fix this though. In particular I don't recall if this still happens with gregkh's queued sysfs patches applied.

Eric