diff --git a/clientside/tmcc/linux/docker/dockerclient.pm b/clientside/tmcc/linux/docker/dockerclient.pm
index 69898f96abd73ca20897f9e8bc9b74e80ea889af..84894015aeb17cec32d47830988a3d9b3c9a8235 100644
--- a/clientside/tmcc/linux/docker/dockerclient.pm
+++ b/clientside/tmcc/linux/docker/dockerclient.pm
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 #
-# Copyright (c) 2017 University of Utah and the Flux Group.
+# Copyright (c) 2017, 2018 University of Utah and the Flux Group.
 # 
 # {{{EMULAB-LICENSE
 # 
@@ -282,6 +282,7 @@ sub container_run($$$$;$$$) {
     }
     $args->{'Image'} = $image;
     $args->{'Cmd'} = $cmd;
+    $args->{'Tty'} = JSON::PP::false;
     my ($code,$content,$resp);
     ($code,$content) = $self->container_create($id,$args);
     if ($code) {
diff --git a/clientside/tmcc/linux/docker/libvnode_docker.pm b/clientside/tmcc/linux/docker/libvnode_docker.pm
index 1db1a92e53417415e67146fcace9db8c214cbd59..7184b772ca36629396e9aa46664f6c544cce73d1 100644
--- a/clientside/tmcc/linux/docker/libvnode_docker.pm
+++ b/clientside/tmcc/linux/docker/libvnode_docker.pm
@@ -4128,6 +4128,12 @@ sub analyzeImage($$)
 	    if ($needunlock);
 	return $code;
     }
+    # Santize the output.  For whatever reason(s), under heavy load, it
+    # comes with non-printable chars occasionally, and with CRLF.  Odd.
+    #$buf =~ s/[^[:ascii:]]//g;
+    #$buf =~ s/\r\n//g;
+    $buf =~ s/[\000-\011\014\015-\037\176-\255]//g;
+
     TBDebugTimeStamp("analyze.sh output:\n$buf");
     open(FD,">/vms/contexts/analyze-$iid");
     print FD $buf;