scp hangs

[Michael]

   Hello!
   scp hangs while copying file over a certain size. Here's the output of
   scp in verbose mode:
   scp -v test.pdf pc:
   Executing: program /usr/bin/ssh host pc, user (unspecified), command
   scp -v -t .
   OpenSSH_5.1p1, OpenSSL 0.9.8j 07 Jan 2009
   debug1: Reading configuration data /home/user/.ssh/config
   debug1: Applying options for pc
   debug1: Reading configuration data /etc/ssh/ssh_config
   debug1: Applying options for *
   debug1: Connecting to 192.168.0.21 [192.168.0.21] port 22.
   debug1: Connection established.
   debug1: identity file /home/user/.ssh/identity type -1
   debug1: identity file /home/user/.ssh/id_rsa type -1
   debug1: identity file /home/user/.ssh/id_dsa type -1
   debug1: Remote protocol version 2.0, remote software version
   OpenSSH_5.1
   debug1: match: OpenSSH_5.1 pat OpenSSH*
   debug1: Enabling compatibility mode for protocol 2.0
   debug1: Local version string SSH-2.0-OpenSSH_5.1
   debug1: SSH2_MSG_KEXINIT sent
   debug1: SSH2_MSG_KEXINIT received
   debug1: kex: server->client aes128-cbc hmac-md5 none
   debug1: kex: client->server aes128-cbc hmac-md5 none
   debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
   debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
   debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
   debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
   debug1: Host '192.168.0.21' is known and matches the RSA host key.
   debug1: Found key in /home/user/.ssh/known_hosts:10
   debug1: ssh_rsa_verify: signature correct
   debug1: SSH2_MSG_NEWKEYS sent
   debug1: expecting SSH2_MSG_NEWKEYS
   debug1: SSH2_MSG_NEWKEYS received
   debug1: SSH2_MSG_SERVICE_REQUEST sent
   debug1: SSH2_MSG_SERVICE_ACCEPT received
   debug1: Authentications that can continue: publickey,password
   debug1: Next authentication method: publickey
   debug1: Trying private key: /home/user/.ssh/identity
   debug1: Trying private key: /home/user/.ssh/id_rsa
   debug1: Trying private key: /home/user/.ssh/id_dsa
   debug1: Next authentication method: password
   [1]user at 192.168.0.2's password:
   debug1: Authentication succeeded (password).
   debug1: channel 0: new [client-session]
   debug1: Requesting [2]no-more-sessions at openssh.com
   debug1: Entering interactive session.
   debug1: Sending command: scp -v -t .
   Sending file modes: C0600 33843 test.pdf
   Sink: C0600 33843 test.pdf
   test.pdf                                  100%   33KB  33.1KB/s
   00:00
   ^Cdebug1: channel 0: free: client-session, nchannels 1
   debug1: fd 0 clearing O_NONBLOCK
   debug1: fd 1 clearing O_NONBLOCK
   Killed by signal 2.
   The Terminal writes he uploaded 100% but the file is emtpy (0 byte).
   The openssh version used in cygwin seems to have a similar problem
   with dual core machines. I'm using Archlinux on a dual core.
   Does anybody has the same problem?
   Regards,
   Michael

References

   1. mailto:user at 192.168.0.2
   2. mailto:no-more-sessions at openssh.com