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Re: [Xen-users] e1000: probe of 0000:00:00.0 failed with error -5

To: Thomas Harold <tgh@xxxxxxxxxxxx>
Subject: Re: [Xen-users] e1000: probe of 0000:00:00.0 failed with error -5
From: Mike Wright <xktnniuymlla@xxxxxxxxxxxxxx>
Date: Sun, 08 Oct 2006 11:20:55 -0700
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Thomas Harold wrote:
I'm having trouble passing 2 ethernet NICs to a DomU.  I'm referencing:

http://wiki.xensource.com/xenwiki/Assign_hardware_to_DomU_with_PCIBack_as_module

The Dom0 kernel seems to be configured correctly. The pciback module is compiled as built-in so I'm passing the pciback.hide on the kernel line in grub.conf:

module /vmlinuz-2.6.16.28-xen0 root=/dev/md1 pciback.hide=(01:07.0)(01:07.1)

Output of dmesg:

Kernel command line: root=/dev/md1 pciback.hide=(01:07.0)(01:07.1)
...
pciback 0000:01:07.0: seizing device
pciback 0000:01:07.1: seizing device
...

So things seem to be working properly in Dom0.

# lspci
...
01:07.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet Controller (rev 03) 01:07.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet Controller (rev 03) 01:08.0 Serial controller: 3Com Corp, Modem Division 56K FaxModem Model 5610 (rev 01)
...

Then I'm passing these 2 PCI devices (2 ports on an Intel PRO/1000 PCI-X dual-port NIC) to the DomU. The NIC on the motherboard is connected to the xenbr0 and we're passing that address in as well.

vif = [ 'bridge=xenbr0' ]
pci = [ '01:07.0', '01:07.1' ]

Here's output from dmesg in Dom0:

PCI: setting up Xen PCI frontend stub
xen_mem: Initialising balloon driver.
SCSI subsystem initialized
PCI: System does not support PCI
PCI: System does not support PCI
IA32 emulation $Id: sys_ia32.c,v 1.32 2002/03/24 13:02:28 ak Exp $
pcifront pci-0: Installing PCI frontend
pcifront pci-0: Creating PCI Frontend Bus 0000:00
...
EXT3 FS on sda1, internal journal
Intel(R) PRO/1000 Network Driver - version 6.3.9-k4
Copyright (c) 1999-2005 Intel Corporation.
PCI: Enabling device 0000:00:00.0 (0000 -> 0003)
e1000: probe of 0000:00:00.0 failed with error -5
PCI: Enabling device 0000:00:00.1 (0000 -> 0003)
e1000: probe of 0000:00:00.1 failed with error -5
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda2, internal journal

And output of lspci inside the DomU:

# lspci
00:00.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet Controller (rev 03) 00:00.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet Controller (rev 03)

The e1000 driver is loaded as a module in the DomU kernel (using the "e1000" line in modprobe.conf).

Have you tried adding this line do a domU's modprobe.conf?

  "alias eth0 xennet"

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