[Bug 716026] [NEW] regression: ssh-agent running but not working

[andrew]

Public bug reported:

(the process listing output in this bug report is invalid, I have
manually killed ssh-agent in an attempt to get it working before
reporting this bug)

I've been running ssh-agent since at least 9.04, it's worked beautifully
until 11.04, where the communication between ssh and ssh-agent seems to
have fallen apart. This particular machine was a fresh 10.04 install,
upgraded to 10.10, and upgraded again to 11.04.

ps shows that ssh-agent is running, the environment variables point to a
valid unix domain socket and the PID is correct for the running agent.
However ssh does not bring up the pinentry program; I enter the
passphrase at the shell prompt and the login works as normal. However
the computer I connected to does not show the agent variables as they
used to (and I can't ssh to another machine from that machine and use
the key, as is possible with an agent and agent forwarding).

/etc/alternatives/pinentry points to /usr/bin/pinentry-qt4, which is
correct, and pinentry-qt4 is executable and appears to work correctly (I
can issue GETPIN and get the popup and have the pin entered returned to
the shell).

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: openssh-client 1:5.8p1-1ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-2.29-generic 2.6.38-rc3
Uname: Linux 2.6.38-2-generic x86_64
Architecture: amd64
Date: Wed Feb  9 14:15:20 2011
InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
 LANGUAGE=
RelatedPackageVersions:
 ssh-askpass 1:1.2.4.1-9
 libpam-ssh N/A
 keychain N/A
 ssh-askpass-gnome N/A
SSHClientVersion: OpenSSH_5.8p1 Debian-1ubuntu1, OpenSSL 0.9.8o 01 Jun 2010
SourcePackage: openssh

** Affects: openssh (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug natty

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https://bugs.launchpad.net/bugs/716026

Title:
  regression: ssh-agent running but not working