FB7.0 - ifconfig clone error - "SIOCIFCREATE2: Invalid argument"

Vince Hoffman jhary at unsane.co.uk
Wed Jul 2 19:35:02 UTC 2008


Ross wrote:
> Hi there,
> 
> I've been playing with a new FB7.0 setup (using the standard iso
> distribution), and trying to create some vlans by doing cloning via
> the rc.conf "cloned_interfaces" command - but that fails.  (I'm using
> bce interfaces on a HP bl760c blade, if that makes any difference)
> 
> Doing manual testing of "ifconfig xyz0 create" causes the error
> "ifconfig: SIOCIFCREATE2: Invalid argument" error to come up and the
> interface then doesn't get created.
> 
what command are you using exactly? it certainly works here.

root at crab
(20:30:15 <~>) 0 # ifconfig em1.5
ifconfig: interface em1.5 does not exist
root at crab
(20:30:20 <~>) 0 # ifconfig em1.5 create
root at crab
(20:30:25 <~>) 0 # ifconfig em1.5
em1.5: flags=8842<BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
         options=3<RXCSUM,TXCSUM>
         ether 00:07:e9:17:db:c9
         media: Ethernet autoselect (100baseTX <full-duplex>)
         status: active
         vlan: 5 parent interface: em1
root at crab
(20:30:26 <~>) 0 # ifconfig em1.5 destroy

Or

root at crab
(20:30:55 <~>) 0 # ifconfig bge0.5 create
root at crab
(20:31:04 <~>) 0 # ifconfig bge0.5
bge0.5: flags=8842<BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
         options=3<RXCSUM,TXCSUM>
         ether 00:e0:81:2d:a3:16
         media: Ethernet autoselect (100baseTX <full-duplex>)
         status: active
         vlan: 5 parent interface: bge0
root at crab
(20:31:16 <~>) 0 # ifconfig bge0.5 destroy
root at crab
(20:31:20 <~>) 0 #

Vince

> Has anyone gotten this error at all, and how did you get it resolved?
> 
> My digging further shows that a patch was committed to
> src/sys/net/if_clone.c (rev 1.11) which adds a new argument for
> parameter data to the if_clone_create() function.
> 
> But it looks like src/sys/net/if.c has not been updated to provide
> this new parameter data to the if_clone_create function call, thereby
> failing the call, and not setting the interface up.
> 
> Any help or pointing in the right direction would be appreciated!
> 
> Thanks,
>   Ross.
> 



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