This got fixed for me with a reboot. Considering the level of the
stacktrace (threads) I'm guessing it was a mismatch caused by an
upgrade.
** Changed in: evolution (Ubuntu)
Status: New => Invalid
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Evolution segfaults on startup in guest session
https://bugs.launchpad.net/bugs/493595
Y
** Attachment added: "Dependencies.txt"
http://launchpadlibrarian.net/36533113/Dependencies.txt
** Attachment added: "XsessionErrors.txt"
http://launchpadlibrarian.net/36533114/XsessionErrors.txt
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Evolution segfaults on startup in guest session
https://bugs.launchpad.net/bugs/493595
You