evolution hangs (grey window) while previewing an email

[Thomas A. F. Thorne]

I had left evolution running overnight. It seems to develop issues after being left to run for a while on my current system.

This morning I returned focus to the evolution window and tried to view the latest email from my Exchange account in the preview window. "retrieving message 'AQMk...'" is displayed in the preview area and after a short while the application turns gray, suggesting that the process has hung. It has been that way for about an hour, so I started trying to collect some diagnostic info.

$ ps -elf | grep evolution
0 S thomast+ 6165 5732 0 80 0 - 413489 poll_s Aug10 ? 00:00:00 /usr/lib/evolution/evolution-source-registry
0 S thomast+ 6288 5732 0 80 0 - 456116 poll_s Aug10 ? 00:00:11 /usr/lib/evolution/evolution-calendar-factory
0 S thomast+ 7088 6039 0 80 0 - 306294 poll_s Aug10 ? 00:00:00 /usr/lib/evolution/3.10/evolution-alarm-notify
0 S thomast+ 7492 5732 0 80 0 - 975658 futex_ Aug10 ? 00:01:55 evolution
0 S thomast+ 25363 5732 0 80 0 - 521596 poll_s Aug10 ? 00:00:01 /usr/lib/evolution/evolution-addressbook-factory

$ sudo strace -p 7492
Process 7492 attached
futex(0x55c16bf54594, FUTEX_WAIT_PRIVATE, 1, NULL^CProcess 7492 detached

I'll attach the other data as .txt files in a bit.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: evolution 3.10.4-0ubuntu2
Uname: Linux 4.1.0-040100rc8-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Aug 11 11:36:36 2015
InstallationDate: Installed on 2015-03-12 (151 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
SourcePackage: evolution
UpgradeStatus: No upgrade log present (probably fresh install)

[Thomas A. F. Thorne (tafthorne)]

I did
  $ sudo gdb --batch --ex "t a a bt" -pid=`pidof evolution` &>bt.txt
the resulting file is attached. I had a quick look through it and could not see any sensitive data in there.

[Thomas A. F. Thorne (tafthorne)]

strace-6288-evolution-calendar-factory.txt showing strace output of evolution-calendar-factory taken over a few minutes.

[Thomas A. F. Thorne (tafthorne)]

strace-7088-evolution-alarm-notify.txt showing strace for evolution-alarm-notify taken over the same few minutes.

[Thomas A. F. Thorne (tafthorne)]

strace-6165-evolution-source-registry.txt strace volution-source-registry of taken over the same few minutes.

[Thomas A. F. Thorne (tafthorne)]

strace-25363-evolution-addressbook-factory strace of evolution-addressbook-factory taken over the same few minutes.