diff --git a/tests/test-runner/bin/zts-report.py.in b/tests/test-runner/bin/zts-report.py.in
index e14472e2f4..da22ae7be0 100755
--- a/tests/test-runner/bin/zts-report.py.in
+++ b/tests/test-runner/bin/zts-report.py.in
@@ -289,11 +289,6 @@ if sys.platform.startswith('freebsd'):
     })
 elif sys.platform.startswith('linux'):
     maybe.update({
-        'alloc_class/alloc_class_009_pos': ['FAIL', known_reason],
-        'alloc_class/alloc_class_010_pos': ['FAIL', known_reason],
-        'alloc_class/alloc_class_011_neg': ['FAIL', known_reason],
-        'alloc_class/alloc_class_012_pos': ['FAIL', known_reason],
-        'alloc_class/alloc_class_013_pos': ['FAIL', '11888'],
         'cli_root/zfs_rename/zfs_rename_002_pos': ['FAIL', known_reason],
         'cli_root/zpool_expand/zpool_expand_001_pos': ['FAIL', known_reason],
         'cli_root/zpool_expand/zpool_expand_005_pos': ['FAIL', known_reason],
diff --git a/tests/zfs-tests/tests/functional/alloc_class/alloc_class.kshlib b/tests/zfs-tests/tests/functional/alloc_class/alloc_class.kshlib
index 4c64cff696..e204f43b3b 100644
--- a/tests/zfs-tests/tests/functional/alloc_class/alloc_class.kshlib
+++ b/tests/zfs-tests/tests/functional/alloc_class/alloc_class.kshlib
@@ -62,6 +62,7 @@ function display_status
 	((ret |= $?))
 
 	kill -9 $pid
+	wait $pid 2> /dev/null
 
 	return $ret
 }