diff --git a/meta-oe/recipes-kernel/kernel-selftest/kernel-selftest/run-ptest b/meta-oe/recipes-kernel/kernel-selftest/kernel-selftest/run-ptest
index ac730b53f4..4e170fc2d0 100755
--- a/meta-oe/recipes-kernel/kernel-selftest/kernel-selftest/run-ptest
+++ b/meta-oe/recipes-kernel/kernel-selftest/kernel-selftest/run-ptest
@@ -2,7 +2,12 @@
 # ftrace:ftracetest-ktap has no per-test timeout and its
 # instances/instance-event.tc can leave a task stuck in D state in
 # trace_array_get() (seen on linux-yocto 7.2.4), hanging the suite. Skip it.
-/usr/kernel-selftest/run_kselftest.sh -s -S ftrace:ftracetest-ktap
+#
+# filesystems:file_stressor is a 15 minute stress test; its forked children
+# move to their own process group, escape the per-test timeout and keep the
+# runner blocked (and silent) until they finish, so ptest-runner kills the
+# whole suite. Skip it.
+/usr/kernel-selftest/run_kselftest.sh -s -S ftrace:ftracetest-ktap -S filesystems:file_stressor
 if [ $? == 0 ]; then
     echo "PASS: kernel-selftest"
 else