Daiki Ueno writes:
>>> Gnus v5.13
>>> GNU Emacs 23.1.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.16.2)

>>> I get this error sometimes, whenever I try to send any GPG-signed mail.
>>> 
>>> Debugger entered--Lisp error: (error "Sign failed")
>>> signal(error ("Sign failed"))

>>> I've masked the mail message and binary byte code in above
>>> stacktrace. As soon as I press C-c C-c, I'm prompted for my GPG key's
>>> password and then mail gets sent, and I get this error. If I press C-c
>>> C-c again in that mail buffer I get this message 'mail already sent.'.
>>> 
>>> I originally noticed this issue in Emacs 23.0.50.x but before I'm able
>>> to report in later versions it went away. And now since few days, it
>>> started to show up again.

> I remember I addressed this issue before:

> http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=2412

> Can you provide debugging information with epg-debug?

Following are the contents of " *epg-debug*" buffer:

#v+
/usr/bin/gpg2 --no-tty --status-fd 1 --yes --use-agent --command-fd 0 --armor --textmode --output /tmp/epg-output7286dfh --detach-sign
[GNUPG:] USERID_HINT 1F2F8410762E5E74 Ashish Shukla (आशीष शुक्ल) <wahjava@gmail.com>
[GNUPG:] NEED_PASSPHRASE 1F2F8410762E5E74 1F2F8410762E5E74 17 0
[GNUPG:] GOOD_PASSPHRASE
[GNUPG:] BEGIN_SIGNING H2
[GNUPG:] SIG_CREATED D 17 2 01 1248014954 1E00467977E4F8EE2E4B56F21F2F8410762E5E74
/usr/bin/gpg2 --no-tty --status-fd 1 --yes --use-agent --command-fd 0 --armor --textmode --output /tmp/epg-output7286qpn --detach-sign
[GNUPG:] USERID_HINT 1F2F8410762E5E74 Ashish Shukla (आशीष शुक्ल) <wahjava@gmail.com>
[GNUPG:] NEED_PASSPHRASE 1F2F8410762E5E74 1F2F8410762E5E74 17 0
[GNUPG:] GOOD_PASSPHRASE
[GNUPG:] BEGIN_SIGNING H2
[GNUPG:] SIG_CREATED D 17 2 01 1248014954 1E00467977E4F8EE2E4B56F21F2F8410762E5E74
/usr/bin/gpg2 --no-tty --status-fd 1 --yes --use-agent --command-fd 0 --armor --textmode --output /tmp/epg-output72863zt --detach-sign
[GNUPG:] USERID_HINT 1F2F8410762E5E74 Ashish Shukla (आशीष शुक्ल) <wahjava@gmail.com>
[GNUPG:] NEED_PASSPHRASE 1F2F8410762E5E74 1F2F8410762E5E74 17 0
[GNUPG:] GOOD_PASSPHRASE
[GNUPG:] BEGIN_SIGNING H2
[GNUPG:] SIG_CREATED D 17 2 01 1248015009 1E00467977E4F8EE2E4B56F21F2F8410762E5E74
/usr/bin/gpg2 --no-tty --status-fd 1 --yes --use-agent --command-fd 0 --armor --textmode --output /tmp/epg-output7286E-z --detach-sign
[GNUPG:] USERID_HINT 1F2F8410762E5E74 Ashish Shukla (आशीष शुक्ल) <wahjava@gmail.com>
[GNUPG:] NEED_PASSPHRASE 1F2F8410762E5E74 1F2F8410762E5E74 17 0
[GNUPG:] GOOD_PASSPHRASE
[GNUPG:] BEGIN_SIGNING H2
[GNUPG:] SIG_CREATED D 17 2 01 1248015009 1E00467977E4F8EE2E4B56F21F2F8410762E5E74
/usr/bin/gpg2 --no-tty --status-fd 1 --yes --use-agent --command-fd 0 --armor --textmode --output /tmp/epg-output72862HD --detach-sign
[GNUPG:] USERID_HINT 1F2F8410762E5E74 Ashish Shukla (आशीष शुक्ल) <wahjava@gmail.com>
[GNUPG:] NEED_PASSPHRASE 1F2F8410762E5E74 1F2F8410762E5E74 17 0
[GNUPG:] GOOD_PASSPHRASE
[GNUPG:] BEGIN_SIGNING H2
[GNUPG:] SIG_CREATED D 17 2 01 1248015010 1E00467977E4F8EE2E4B56F21F2F8410762E5E74
#v-

And I've recieved the similar error in the last mail I sent.

> Regards,
> -- 
> Daiki Ueno

Thanks for looking into this matter. I remember having filing a similar
bug with 23.0.60.x release but have recieved no replies.

BtW, I'm using gpg2 (GnuPG 2.0.12) for gpg.

Thanks
-- 
Ashish SHUKLA