Description of problem:

I log in to my host with ssh -X user@host, and start virt-manager.

virt-manager displays on my screen as expected, and everything
looks normal.

I go off and do something else for 3 or 4 minutes.

when I return, it's gone.

I found these messages in /var/log/messages:
Aug 30 11:33:49 myserver kernel: traps: virt-manager[22702] trap stack segment ip:7fdb92f05c1a sp:7fffed84f590 error:0 in libpython2.7.so.1.0[7fdb92e80000+178000]
Aug 30 11:33:50 myserver abrt-hook-ccpp: Saved core dump of pid 22702 (/usr/bin/python2.7) to /var/tmp/abrt/ccpp-2015-08-30-11:33:49-22702 (106160128 bytes)

Version-Release number of selected component (if applicable):
1.1.0

How reproducible:
very

Steps to Reproduce:
see description.

Actual results:


Expected results:


Additional info:
if I actually work with virt-manager, everything is great. 
it only seems to misbehave when I leave it alone for a short while.


host info:
[root@myserver somedir]# uname -a
Linux myserver 3.10.0-229.1.2.el7.x86_64 #1 SMP Fri Mar 27 03:04:26 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux