Hi Ben,
We have a similar Problem since we've upgraded from Ubuntu 15.04 to 15.10.
When starting gpg-agent with --log-file the log show the following:
2015-05-30 13:49:36 gpg-agent[3600] error accessing card: Conflicting use
2015-05-30 13:49:36 gpg-agent[3600] smartcard signing failed:
Conflicting use
2015-05-30 13:49:38 gpg-agent[3600] error getting default authentication keyID
of card: Conflicting use
I've asked the list serval times about this issue but got now answer yet. So i
dont have a solution but it may be interesting if your problem is the same...
Regards
The2nd
<div>-------- Ursprüngliche Nachricht --------</div><div>Von: Ben Warren
<biggerbadder...@gmail.com> </div><div>Datum:11.20.2015 16:26 (GMT+01:00)
</div><div>An: gnupg-users@gnupg.org </div><div>Betreff: scdaemon lockup with
Yubikey NEO </div><div>
</div>Hi,
I’ve noticed several other problem reports that seem similar, hopefully they’re
all related and there’s a simple fix.
The problem:
After an indeterminate amount of time (sometimes minutes, sometimes hours), any
GPG operation that uses my Yubikey NEO device hangs. The two most common
operations are SSH authentication and git signing. The following sequence gets
things going again:
$ killall -SIGKILL scdaemon
$ gpg2 —card-status
System particulars:
Host OS is OS-X Yosemite, although it is also present on Mavericks (haven’t
tried El Capitan yet)
GPG 2.1.5
Using the Yubikey’s authentication subkey to login to remote Linux hosts
Using the Yubikey’s signing subkey for git signing operations, both local and
remote
Using gpg-agent for forwarding both GPG and SSH (great features, BTW!)
GPG configuration file:
$ cat ~/.gnupg/gpg-agent.conf
default-cache-ttl 1
ignore-cache-for-signing
no-allow-external-cache
max-cache-ttl 1
extra-socket ${HOME}/.gnupg/S.gpg-extra-agent
debug-all
log-file ${HOME}/.gnupg/mygpglogfile.log
enable-ssh-support
I’ll be happy to help debug this, but need some guidance.
thanks,
Ben_______________________________________________
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