tests: sleep a bit and give kernel time to perform the action after manual freeze...

Fixes: #16050

diff --git a/test/units/testsuite-38.sh b/test/units/testsuite-38.sh
index 6fcadb8f8e1d3ccb932fc709c426b556bc322098..18b7bd6dcee27b0b8f3c8564f20c1747cf927461 100755 (executable)
--- a/test/units/testsuite-38.sh
+++ b/test/units/testsuite-38.sh
@@ -246,6 +246,8 @@ test_preserve_state() {
 
     echo -n "  - freeze from outside: "
     echo 1 > /sys/fs/cgroup/"${slice}"/cgroup.freeze
+    # Give kernel some time to freeze the slice
+    sleep 1
 
     # Our state should not be affected
     check_freezer_state "${slice}" "running"
@@ -258,6 +260,8 @@ test_preserve_state() {
 
     echo -n "  - thaw from outside: "
     echo 0 > /sys/fs/cgroup/"${slice}"/cgroup.freeze
+    sleep 1
+
     check_freezer_state "${unit}" "running"
     check_freezer_state "${slice}" "running"
     grep -q "frozen 0" /sys/fs/cgroup/"${slice}"/cgroup.events