Comment 1 for bug 624898

Hi Jason, thanks for filing this bug report and working with us to make Ubuntu better!

The syscall appears to be "select()", which means that ssh is waiting for data from the other side of some connection. This could be from the DNS server or the server you have connected to.

What might be more interesting is the output of the debugging mode of ssh. However, this may not be suitable for public consumption as it could contain details about the security of not only your local machine, but that of the remote machine.

If you are going to post that, you should either edit the file to remove portions that reveal the hostnames/identities of any of the systems or users that you're connecting to/with, or you can mark this bug as private before doing so, but then only subscribed users will be able to see it, so subscribe 'ubuntu-bugcontrol' too so that you can get trusted users looking at the bug as well.

To generate the debugging output, simply add

-vvv

To your ssh command line, and you will get a ton of output that looks something like this:

debug1: Requesting <email address hidden>
debug1: Entering interactive session.
debug2: callback start
debug2: client_session2_setup: id 0
debug2: channel 0: request pty-req confirm 1

When you post the output, Note the sections that take longer than you would expect them to (and, if you can, exactly how long).

Marking Incomplete pending Jason's response.