While looking at Debian bug #794071 I came across this which may or may not resolve that bug, but looks like it ought to be backported anywhere that XSA-57 was applied.
It is in staging-4.5, but not staging-4.4 and I didn't go older. commit 39ba2989b10b6a1852e253b204eb010f8e7026f1 Author: Ian Jackson <ian.jack...@eu.citrix.com> Date: Thu Feb 27 17:46:49 2014 +0000 tools/console: xenconsole tolerate tty errors Since 28d386fc4341 (XSA-57)[...] Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel