[Bug 1588546] [NEW] gnupg2 fails, "Line passed to IPC too long"

[Chad Miller]

Public bug reported:

I have a key on a USB-plugged "smart card" in the form of a Yubikey 4
Nano.

$ gpg2 --sign noise
gpg: signing failed: Line passed to IPC too long
gpg: signing failed: Line passed to IPC too long

$ echo $?
2

In going to gpg-agent.conf and adding debug logging,  Attaching.

If I kill "scdaemon" and "gpg-agent", they exit, and it has no effect.
Next run causes the same message.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: gnupg2 2.1.11-6ubuntu2
Uname: Linux 4.5.0-040500-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: GNOME
Date: Thu Jun  2 17:15:42 2016
EcryptfsInUse: Yes
SourcePackage: gnupg2
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: gnupg2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

** Attachment added: "gpgagentlog"
   https://bugs.launchpad.net/bugs/1588546/+attachment/4675530/+files/gpgagentlog

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to gnupg2 in Ubuntu.
https://bugs.launchpad.net/bugs/1588546

Title:
  gnupg2 fails, "Line passed to IPC too long"

Status in gnupg2 package in Ubuntu:
  New

Bug description:
  I have a key on a USB-plugged "smart card" in the form of a Yubikey 4
  Nano.

  $ gpg2 --sign noise
  gpg: signing failed: Line passed to IPC too long
  gpg: signing failed: Line passed to IPC too long

  $ echo $?
  2

  In going to gpg-agent.conf and adding debug logging,  Attaching.

  If I kill "scdaemon" and "gpg-agent", they exit, and it has no effect.
  Next run causes the same message.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: gnupg2 2.1.11-6ubuntu2
  Uname: Linux 4.5.0-040500-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Thu Jun  2 17:15:42 2016
  EcryptfsInUse: Yes
  SourcePackage: gnupg2
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnupg2/+bug/1588546/+subscriptions