if_em and if_vlan

Jon Otterholm Wed, 26 Sep 2007 07:58:30 -0700

Hi.

I get "Device busy" when trying to change VLAN-id on a sub-if to em0:


[EMAIL PROTECTED] /home/user]# ifconfig vlan100 vlan 100 vlandev em0
ifconfig: SIOCSETVLAN: Device busy

[EMAIL PROTECTED] /home/user]# dmesg | grep em0

em0: <Intel(R) PRO/1000 Network Connection Version - 6.2.9> port0x4000-0x401f mem 0xee200000-0xee21ffff irq 16 at device 0.0 on pci9


[EMAIL PROTECTED] /home/user]# pciconf -vl

[EMAIL PROTECTED]:0:0: class=0x020000 card=0x108c15d9 chip=0x108c8086 rev=0x03hdr=0x00

   vendor     = 'Intel Corporation'
   device     = 'PRO/1000 PM'
   class      = network
   subclass   = ethernet

[EMAIL PROTECTED] /home/user]# uname -a

FreeBSD host 6.2-STABLE FreeBSD 6.2-STABLE #1: Tue Sep 25 22:29:05 CEST2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/host i386


It works if I create a new interface like:

[EMAIL PROTECTED] /home/user]# ifconfig vlan100 create

and setting the vid and vlandev:

[EMAIL PROTECTED] /home/user]# ifconfig vlan100 vlan 100 vlandev em0

But when I try to change the setting:

[EMAIL PROTECTED] /home/user]# ifconfig vlan100 vlan 100 vlandev em1
ifconfig: SIOCSETVLAN: Device busy

Even if I destroy the interface and create it again I get "Device busy":

[EMAIL PROTECTED] /home/user]# ifconfig vlan100 destroy
[EMAIL PROTECTED] /home/user]# ifconfig vlan100 create
[EMAIL PROTECTED] /home/user]# ifconfig vlan100 vlan 100 vlandev em1
ifconfig: SIOCSETVLAN: Device busy

Motherboard is Supermicro PDSMi-LN4+ with four em-interfaces.

How do I solve this?

//Jon
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if_em and if_vlan

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