/usr/bin/zeitgeist-daemon:11:magazine_chain_pop_head:thread_memory_magazine1_alloc:g_slice_alloc:g_hash_table_new_full:g_dbus_message_init

The Ubuntu Error Tracker has been receiving reports about a problem regarding zeitgeist. This problem was most recently seen with package version 1.0-0ubuntu4, the problem page at https://errors.ubuntu.com/problem/058e5c4b2a834b57d994f27c9eef94ff2d199f23 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.