This test case has been in my possession for quite some time.
I am upstreaming it now because it has once again detected a regression in
a recent kernel release[0].
It's just stupid to connect and disconnect RNBD on localhost and expect
no dmesg exceptions, with some attempts actually succeeding.
rnbd/002 (Start Stop RNBD repeatedly) [passed]
runtime 13.252s ... 13.099s
start/stop success ratio 100/100 ... 100/100
[0] https://lore.kernel.org/linux-rdma/20241223025700.292536-1-lizhijian@xxxxxxxxxxx/
Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx>
---
V4:
- Fix a typo and update the passed condition # Shinichiro Kawasaki <shinichiro.kawasaki@xxxxxxx>
- rename test_start_stop() to test_start_stop_repeatedly()
V3:
- Always stop the rnbd regardless of the result of start
V2:
- address comments from Shinichiro
- minor fixes
Copy to the RDMA/rtrs guys:
Cc: Jack Wang <jinpu.wang@xxxxxxxxx>
Cc: Jason Gunthorpe <jgg@xxxxxxxx>
Cc: Leon Romanovsky <leon@xxxxxxxxxx>
Cc: "Md. Haris Iqbal" <haris.iqbal@xxxxxxxxx>
---
tests/rnbd/002 | 47 ++++++++++++++++++++++++++++++++++++++++++++++
tests/rnbd/002.out | 2 ++
2 files changed, 49 insertions(+)
create mode 100755 tests/rnbd/002
create mode 100644 tests/rnbd/002.out
diff --git a/tests/rnbd/002 b/tests/rnbd/002
new file mode 100755
index 000000000000..7d7da9401974
--- /dev/null
+++ b/tests/rnbd/002
@@ -0,0 +1,47 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (c) 2024 FUJITSU LIMITED. All Rights Reserved.
+#
+# Commit 667db86bcbe8 ("RDMA/rtrs: Register ib event handler") introduced a
+# new element .deinit but never used it at all that lead to a
+# 'list_add corruption' kernel warning.
+#
+# This test is intended to check whether the current kernel is affected.
+# The following patch resolves this issue.
+# RDMA/rtrs: Add missing deinit() call
+#
+. tests/rnbd/rc
+
+DESCRIPTION="Start Stop RNBD repeatedly"
+CHECK_DMESG=1
+QUICK=1
+
+requires() {
+ _have_rnbd
+ _have_loop
+}
+
+test_start_stop_repeatedly()
+{
+ _setup_rnbd || return
+
+ local loop_dev i j=0
+ loop_dev="$(losetup -f)"
+
+ for ((i=0;i<100;i++))
+ do
+ _start_rnbd_client "${loop_dev}" &>/dev/null
+ # Always stop it so that the next start has change to work
+ _stop_rnbd_client &>/dev/null && ((j++))
+ done
+
+ TEST_RUN["start/stop success ratio"]="${j}/${i}"
+
+ _cleanup_rnbd
+}
+
+test() {
+ echo "Running ${TEST_NAME}"
+ test_start_stop_repeatedly
+ echo "Test complete"
+}
diff --git a/tests/rnbd/002.out b/tests/rnbd/002.out
new file mode 100644
index 000000000000..2f055b8c82f9
--- /dev/null
+++ b/tests/rnbd/002.out
@@ -0,0 +1,2 @@
+Running rnbd/002
+Test complete
--
2.47.0
