netdev - r8169 MAC problem

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Date:	Fri, 6 Mar 2009 14:29:13 -0500
From:	Tim Durack <tdurack@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	netdev@...r.kernel.org, Francois Romieu <romieu@...zoreil.com>
Subject: r8169 MAC problem

Looks like the r8169 MAC bug is still lurking:

CFG-1:~# uname -a
Linux CFG-1 2.6.29-rc7-686 #1 SMP Fri Mar 6 01:07:38 UTC 2009 i686 GNU/Linux

CFG-1:~# modprobe -r r8169
[  198.684076] r8169 0000:00:0c.0: PCI INT A disabled
[  198.944075] r8169 0000:00:0b.0: PCI INT A disabled
[  199.204080] r8169 0000:00:09.0: PCI INT A disabled

CFG-1:~# modprobe -i r8169
[  202.183521] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[  202.189230] r8169 0000:00:09.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[  202.197440] r8169 0000:00:09.0: no PCI Express capability
[  202.203116] r8169 0000:00:09.0: MAC address found in EEPROM:
00:30:18:ab:f0:34
[  202.212721] eth0: RTL8169sc/8110sc at 0xf90b0000,
00:00:00:00:f0:34, XID 18000000 IRQ 18
[  202.221555] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[  202.227202] r8169 0000:00:0b.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[  202.234202] r8169 0000:00:0b.0: no PCI Express capability
[  202.239859] r8169 0000:00:0b.0: MAC address found in EEPROM:
00:30:18:ab:f0:35
[  202.249413] eth1: RTL8169sc/8110sc at 0xf8012000,
00:00:00:00:f0:35, XID 18000000 IRQ 19
[  202.258267] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[  202.263911] r8169 0000:00:0c.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[  202.270890] r8169 0000:00:0c.0: no PCI Express capability
[  202.276551] r8169 0000:00:0c.0: MAC address found in EEPROM:
00:30:18:ab:f0:36
[  202.286256] eth2: RTL8169sc/8110sc at 0xf8016000,
00:30:18:ab:f0:36, XID 18000000 IRQ 16

This obviously doesn't work very well. Full power-cycle back into
2.6.26 fixes the problem:

CFG-1:~# uname -a
Linux CFG-1 2.6.26-1-686 #1 SMP Sun Feb 8 02:27:05 UTC 2009 i686 GNU/Linux

CFG-1:~# modprobe -r r8169
[   83.220122] ACPI: PCI interrupt for device 0000:00:0c.0 disabled
[   83.252673] ACPI: PCI interrupt for device 0000:00:0b.0 disabled
[   83.285249] ACPI: PCI interrupt for device 0000:00:09.0 disabled

CFG-1:~# modprobe -i r8169
[   87.454505] r8169 Gigabit Ethernet driver 2.2LK-NAPI loaded
[   87.461284] ACPI: PCI Interrupt 0000:00:09.0[A] ->  a future
releasGSI 18 (level, low) -> IRQ 18
[   87.476007] eth0: RTL8169sc/8110sc at 0xf8832000,
00:30:18:ab:f0:34, XID 18000000 IRQ 18
[   87.484682] r8169 Gigabit Ethernet driver 2.2LK-NAPI loaded
[   87.489660] ACPI: PCI Interrupt 0000:00:0b.0[A] -> GSI 19 (level,
low) -> IRQ 19
[   87.500006] eth1: RTL8169sc/8110sc at 0xf8834000,
00:30:18:ab:f0:35, XID 18000000 IRQ 19
[   87.508675] r8169 Gigabit Ethernet driver 2.2LK-NAPI loaded
[   87.513633] ACPI: PCI Interrupt 0000:00:0c.0[A] -> GSI 16 (level,
low) -> IRQ 16
[   87.524006] eth2: RTL8169sc/8110sc at 0xf8f88000,
00:30:18:ab:f0:36, XID 18000000 IRQ 16

Based on googling around, I'm going to guess this might be related:

Ivan Vecera (1): r8169: read MAC address from EEPROM on init (2nd attempt)

Any ideas?

Tim:>
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