From patchwork Tue Jul 19 07:12:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Sun Ke X-Patchwork-Id: 12922173 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AF756C433EF for ; Tue, 19 Jul 2022 07:00:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229914AbiGSHAJ (ORCPT ); Tue, 19 Jul 2022 03:00:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232009AbiGSHAG (ORCPT ); Tue, 19 Jul 2022 03:00:06 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AA7685583 for ; Tue, 19 Jul 2022 00:00:05 -0700 (PDT) Received: from dggemv703-chm.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Ln8ms3ZcNzlWDS; Tue, 19 Jul 2022 14:58:21 +0800 (CST) Received: from kwepemm600010.china.huawei.com (7.193.23.86) by dggemv703-chm.china.huawei.com (10.3.19.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Tue, 19 Jul 2022 15:00:02 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600010.china.huawei.com (7.193.23.86) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Tue, 19 Jul 2022 15:00:01 +0800 From: Sun Ke To: , CC: , Subject: [PATCH blktests v3] nbd: add a module load and device connect test Date: Tue, 19 Jul 2022 15:12:16 +0800 Message-ID: <20220719071216.1555636-1-sunke32@huawei.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To kwepemm600010.china.huawei.com (7.193.23.86) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org 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 --- 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 +}