[uml-user] tuntap_open_tramp failed - errno=22

[<fre...@ce...>]

Hello everybody,

 I encounter a eth/tap problem with the following configuration :
  - pentium I - 200 MHz
  - 2 * 3COM 3c59x Ethernet card
  - Debian woody
  - kernel 2.4.18-bf24
  - UML 2.4.18-13um home compiled
 dmesg says :
  Universal TUN/TAP device driver 1.4
  Netdevice 0 :TUN/TAP device backend-IP=192.168.3.254
  Netdevice 1 :TUN/TAP device backend-IP=192.168.4.254
 ifconfig -	a :
  eth0 : Eth@ OK ; no IP@ ; BROADCAST MULTICAST
  eth1 : Eth@ OK ; no IP@ ; BROADCAST MULTICAST
  The IP@ is visible with ifconfig -a only if I do a ifconfig ethx down
 /dev :
   tap0 is there (are minor(16) & major(36) correct ?)

 PROBLEM :
  ifconfig ethx up issues :
   tuntap_open_tramp : didn't receive a message
   Exec of 'uml_net' failed - errno = 2
   tuntap_open_tramp failed - errno = 22
   SIOCSIFFLAGS: Invalid argument

Any idea ?