Networking :: Failed To Remove VLAN Interface?

Feb 11, 2010

My Linux machine's all Ethernet ports are connected to Cisco 2960SCG switch. Linux machine is having two Ethernet cards. First one is using "e1000" Ethernet driver and the second one is with "nxge" Ethernet driver.

Problem is; I am successful while trying to delete VLAN interfaces over motherboard PCI Ethernet card, but if i try the same on other PCI card the following messages are coming,and soon system getting hanged.

Message from syslogd@ at Wed Feb 10 17:48:11 2010 ... localhost kernel: unregister_netdevice: waiting for eth5.390 to become free. Usage count = 4

Bofore using nxge based Ethernet card I used e1000 based only, for that also I had same problem.

[root@localhost ~]# ifconfig eth5.390
eth5.390 Link encap:Ethernet HWaddr 00:21:28:21:DB:D1
inet addr:192.168.155.4 Bcast:192.168.155.255 Mask:255.255.255.0
inet6 addr: fe80::221:28ff:fe21:dbd1/64 Scope:Link

[Code]....

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[code]....

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Code:
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Configuration file: test.conf
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Code:
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Code:
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Code:
...
Bus 001 Device 005: ID 0cf3:1006 Atheros Communications, Inc. TP-Link TL-WN422G v2 802.11g [Atheros AR9271]
...
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Code:
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network
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[Code].....

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[Code]....

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[code]...

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Before explaining the problem, I have to draw the environment. Because of post size limitations, I'll have to break this post in more than one entry.

Physical view

Code:
+--------+ +---+
|storage1|-----| |
+--------+ | s |
| w |
+--------+ | i | +-------+
|router2 |-----| t |-----|router1|--->Internet
+--------+ | c | +-------+
| h |
+--------+ | 8 |
|router3 |-----| |
+--------+ +---+
Device details

[Code]....

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Code:

My ifcfg-eth0.2 goes as follow

Code:

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[code]...

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[code]...

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