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diff --git a/tests/sys/sound/Makefile b/tests/sys/sound/Makefile
--- a/tests/sys/sound/Makefile
+++ b/tests/sys/sound/Makefile
@@ -5,6 +5,7 @@
ATF_TESTS_C+= pcm_read_write
ATF_TESTS_C+= polling
ATF_TESTS_C+= sndstat
+ATF_TESTS_SH+= hotunload
CFLAGS+= -I${SRCTOP}/sys
LDFLAGS+= -lnv
diff --git a/tests/sys/sound/hotunload.sh b/tests/sys/sound/hotunload.sh
new file mode 100644
--- /dev/null
+++ b/tests/sys/sound/hotunload.sh
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (c) 2025 The FreeBSD Foundation
+#
+# This software was developed by Christos Margiolis <christos@FreeBSD.org>
+# under sponsorship from the FreeBSD Foundation.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+atf_test_case hotunload cleanup
+hotunload_head()
+{
+ atf_set "descr" "Test hot-unload"
+ atf_set "require.kmods" "snd_dummy"
+ atf_set "require.user" "root"
+}
+hotunload_body()
+{
+ local loops=512
+
+ for i in $(seq 1 ${loops}); do
+ cat /dev/random >/dev/dsp.dummy &
+ cat /dev/dsp.dummy >/dev/null &
+ done
+ kldunload -n snd_dummy
+}
+hotunload_cleanup()
+{
+ kldload -n snd_dummy
+}
+
+atf_init_test_cases()
+{
+ atf_add_test_case hotunload
+}

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