This is a regression test for commit 06c4da89c24e
nbd: call genl_unregister_family() first in nbd_cleanup()
Two concurrent processes，one load and unload nbd module
cyclically, the other one connect and disconnect nbd device cyclically.
Last for 10 seconds.
Signed-off-by: Sun Ke <sunke32@xxxxxxxxxx>
---
v2->v3:
catch error and warning message
v1->v2:
1.change install/uninstall to load/unlock
2.use _have_modules instead
tests/nbd/004 | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
tests/nbd/004.out | 2 ++
tests/nbd/rc | 18 +++++++++++++++++
3 files changed, 78 insertions(+)
create mode 100755 tests/nbd/004
create mode 100644 tests/nbd/004.out
diff --git a/tests/nbd/004 b/tests/nbd/004
new file mode 100755
index 0000000..98afd09
--- /dev/null
+++ b/tests/nbd/004
@@ -0,0 +1,58 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2022 Sun Ke
+#
+# Regression test for commit 06c4da89c24e
+# nbd: call genl_unregister_family() first in nbd_cleanup()
+
+. tests/nbd/rc
+
+DESCRIPTION="module load/unload concurrently with connect/disconnect"
+QUICK=1
+
+requires() {
+ _have_modules nbd
+}
+
+module_load_and_unload() {
+ while true; do
+ modprobe nbd >/dev/null 2>&1
+ modprobe -r nbd >/dev/null 2>&1
+ done
+}
+
+connect_and_disconnect() {
+ while true; do
+ _netlink_connect >/dev/null 2>&1
+ _netlink_disconnect >/dev/null 2>&1
+ done
+}
+
+test() {
+ echo "Running ${TEST_NAME}"
+
+ _start_nbd_server_netlink
+
+ module_load_and_unload &
+ pid1=$!
+ connect_and_disconnect &
+ pid2=$!
+
+ sleep 10
+ {
+ kill -9 $pid1
+ wait $pid1
+ kill -9 $pid2
+ wait $pid2
+ } 2>/dev/null
+
+ _stop_nbd_server_netlink
+
+ if _dmesg_since_test_start | grep -q -e "couldn't allocate config" \
+ -e "cannot create duplicate filename"; then
+ echo "Fail"
+ fi
+
+ echo "Test complete"
+}
+
diff --git a/tests/nbd/004.out b/tests/nbd/004.out
new file mode 100644
index 0000000..05ced0c
--- /dev/null
+++ b/tests/nbd/004.out
@@ -0,0 +1,2 @@
+Running nbd/004
+Test complete
diff --git a/tests/nbd/rc b/tests/nbd/rc
index 118553c..b0e7d91 100644
--- a/tests/nbd/rc
+++ b/tests/nbd/rc
@@ -76,3 +76,21 @@ _stop_nbd_server() {
rm -f "${TMPDIR}/nbd.pid"
rm -f "${TMPDIR}/export"
}
+
+_start_nbd_server_netlink() {
+ truncate -s 10G "${TMPDIR}/export"
+ nbd-server 8000 "${TMPDIR}/export" >/dev/null 2>&1
+}
+
+_stop_nbd_server_netlink() {
+ killall -SIGTERM nbd-server
+ rm -f "${TMPDIR}/export"
+}
+
+_netlink_connect() {
+ nbd-client localhost 8000 /dev/nbd0 >> "$FULL" 2>&1
+}
+
+_netlink_disconnect() {
+ nbd-client -d /dev/nbd0 >> "$FULL" 2>&1
+}
--
2.13.6
