regressions: Disable test for 576879.

This test has worked only intermittently for a while.  Disable
it.  The upstream bug has been reopened.

regressions/Makefile.am

@@ -29,7 +29,6 @@ TESTS = \
 	rhbz503169c10.sh \
 	rhbz503169c13.sh \
 	rhbz557655.sh \
-	rhbz576879.sh \
 	rhbz578407.sh \
 	rhbz580246.sh \
 	test-add-domain.sh \
@@ -56,6 +55,7 @@ SKIPPED_TESTS = \
 	test-bootbootboot.sh
 
 FAILING_TESTS = \
+	rhbz576879.sh \
 	test-qemudie-launchfail.sh
 
 random_val := $(shell awk 'BEGIN{srand(); print 1+int(255*rand())}' < /dev/null)

regressions/rhbz576879.sh

@@ -24,17 +24,21 @@ set -e
 
 rm -f test1.img
 
+# Somewhere after 1.7, the first test started to hang.
+#
+# Somewhere between ~ 1.5.23 and ~ 1.5.24 the second test started
+# to hang.
+#
+# We don't understand why.  I have disabled this test and reopened
+# the upstream bug.
+# -- RWMJ 2010-12-06
+
 ../fish/guestfish -N disk <<EOF
 -upload $srcdir/rhbz576879.sh /test.sh
 # Shouldn't lose synchronization, so next command should work:
 ping-daemon
 EOF
 
-# Somewhere between ~ 1.5.23 and ~ 1.5.24 the test below started to
-# hang although we don't understand why.  I have disabled this test.
-# -- RWMJ 2010-10-27
-exit 0
-
 # Second patch tests the problem found in comment 5 where both ends
 # send cancel messages simultaneously.