[uml-user] networking (ifconfig) trouble

[Josef S. <js1...@in...>]

Hello,

after finding a combination of kernel and root fs which don't throw=20
NPTL-related errors on me (like the ones linked on the "new" webpages do),=
=20
working inside UML is all fine but I cannot get the eth0 interface up.
This is on a standard Debian/sarge host system (kernel 2.4.27 without any=20
patches like SKAS)

No matter which kernel I use, including various flavours of 2.4.27, 2.6.14 =
and=20
2.6.16, whenever "ifconfig eth0 up" is executed, the kernel will hang. Even=
=20
if written exactly like that, i.e. with the IP address missing, and error=20
message will come up but then the system will still hang.
	(none):~# ifconfig eth0 up
	dev_ip_addr - device not assigned an IP address

Networking uses tuntap and seems to be detected ok:
Netdevice 0 : TUN/TAP backend - IP =3D xxx.xxx.xxx.xxx

Unfortunately, gdb won't tell me much about this, but at least something:

remove_umid_dir - actually_do_remove failed with err =3D -2
                                                         BUG: warning=20
at /home/jdike/linux/2.6/linux-2.6.16/kernel/irq/manage.c:274/free_irq()
08962c2c:  [<0805857c>] dump_stack+0x1c/0x20
08962c44:  [<0808a440>] free_irq+0x3e/0xe3
08962c70:  [<0805ca4b>] free_winch+0x47/0x55
08962c84:  [<0805ca94>] winch_cleanup+0x13/0x24
08962c94:  [<08057781>] do_uml_exitcalls+0xd/0x1b
08962ca0:  [<08057d10>] uml_cleanup+0x12/0x19
08962ca8:  [<08065a10>] last_ditch_exit+0x23/0x2b
08962cc8:  [<400446f8>] 0x400446f8
08962fb4:  [<08066420>] write_sigio_thread+0x27/0x139
08962fe0:  [<400f292a>] 0x400f292a

NB: would it be a good idea to add "handle SIGUSR1 noprint nostop" to the=20
debugging page on UML?

Josef

=2D-=20
Tous ces gens qui confondent informatique et bureautique, carte et territoi=
re,
interface et programme, boutons color=C3=A9s et facilit=C3=A9...
=2D S. Blondeel