Comment 80 for bug 1157643

I can also confirm Upgrade to Spideroak 5.0.4 (via deb download) removed the problem.

I was having update problems and dpkg would not configure
 procps
 samba
 apport-gtk

Found that procps fails to start, and ran command manually

cat /etc/sysctl.d/*.conf /etc/sysctl.conf | sysctl -e -p -

Gave key permission problems. I eventually found this bug report and the mentions re spideroak. Updated spideroak and the problem went away.