[uml-user] UML on 2.6.12 or .14 and ssh server: funny problem

[Nic F. <nfe...@ta...>]

I'm having a strange problem and I hope that someone else here will be
able to point me in the right direction.

I've got a 2.6.12 UML (but the problem occurs with 2.6.14 as well)
running on top of a 2.6.12 kernel.

I'm running a Debian/Sarge system ontop of this UML.

And ssh doesn't work.

When I try and connect to the ssh server it fails with a socketpair
error. Here's the debug output of the ssh server:

/usr/sbin/sshd -ddde
debug1: Server will not fork when running in debugging mode.
Connection from 127.0.0.1 port 3486
debug1: Client protocol version 2.0; client software version OpenSSH_3.8.1p1 Debian-8.sarge.4
debug1: match: OpenSSH_3.8.1p1 Debian-8.sarge.4 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.8.1p1 Debian-8.sarge.4
monitor_socketpair: socketpair
debug1: do_cleanup
debug1: PAM: cleanup
debug3: PAM: sshpam_thread_cleanup entering

Here's the scary bits from an strace:

 fcntl64(4, F_SETFL, O_RDONLY|O_NONBLOCK) = 0
 socketpair(PF_FILE, SOCK_STREAM, 0, 0x9fc00e08) = -1 EAFNOSUPPORT (Address family not supported by protocol)
 write(2, "monitor_socketpair: socketpair\r\n", 32monitor_socketpair: socketpair) = 32

Clearly something strange is going wrong with ssh. 

Now, I can chroot to the same file system and run the ssh daemon and
it doesn't fubar.

So is this a problem with UML in some way?

Anybody have a clue because I am completly stumped.


Nic Ferrier