To be clear: I removed the file before rebooting, but it got regenerated and refilled at a furious pace, with the same message: _xgeWireToEvent: Unknown extension 148, this should never happen.
At that time, "top" was reporting upstart as the most process, obviously caught in an infinite loop throwing this erroor about the extension 148. It seems like this is the bug: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1369113 And it seems that the spamming, at least, would be removed with an upgrade of libXext to 1.3.3. Or at least, it would be nice to backport the relevant patch http://patchwork.freedesktop.org/patch/22124/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1240848 Title: ~/.cache/upstart takes up around 70GB of space due to unity and mediascanner To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1240848/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs