From mboxrd@z Thu Jan 1 00:00:00 1970 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 A4621C43334 for ; Tue, 26 Jul 2022 03:10:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231795AbiGZDKv (ORCPT ); Mon, 25 Jul 2022 23:10:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57340 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230433AbiGZDKt (ORCPT ); Mon, 25 Jul 2022 23:10:49 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AFD21220D5; Mon, 25 Jul 2022 20:10:48 -0700 (PDT) Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4LsMJX3S7fzWfFv; Tue, 26 Jul 2022 11:06:52 +0800 (CST) Received: from kwepemm600010.china.huawei.com (7.193.23.86) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Tue, 26 Jul 2022 11:10:34 +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, 26 Jul 2022 11:10:33 +0800 From: Sun Ke To: CC: , , Subject: [PATCH v4] ext4: resize fs after set reserved GDT blocks equals 100 Date: Tue, 26 Jul 2022 11:22:40 +0800 Message-ID: <20220726032240.3709879-1-sunke32@huawei.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600010.china.huawei.com (7.193.23.86) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Set reserved GDT blocks equals 100, then resize fs, will trigger null pointer. Regression test for commit b55c3cd102a6 ext4: add reserved GDT blocks check. Signed-off-by: Sun Ke --- tests/ext4/057 | 46 ++++++++++++++++++++++++++++++++++++++++++++++ tests/ext4/057.out | 2 ++ 2 files changed, 48 insertions(+) create mode 100755 tests/ext4/057 create mode 100644 tests/ext4/057.out diff --git a/tests/ext4/057 b/tests/ext4/057 new file mode 100755 index 00000000..f4bbcd32 --- /dev/null +++ b/tests/ext4/057 @@ -0,0 +1,46 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2022 HUAWEI. All Rights Reserved. +# +# FS QA Test 057 +# +# Set reserved GDT blocks equals 100, then resize fs, will trigger null pointer. +# +# Regression test for commit +# b55c3cd102a6 ext4: add reserved GDT blocks check +# +. ./common/preamble +_begin_fstest auto resize quick + +# real QA test starts here + +# Modify as appropriate. +_supported_fs ext4 +_fixed_by_kernel_commit b55c3cd102a6 \ + "ext4: add reserved GDT blocks check" + +_require_command "$TUNE2FS_PROG" tune2fs +_require_command "$RESIZE2FS_PROG" resize2fs +_require_command "$DEBUGFS_PROG" debugfs +_require_scratch_size $((1024 * 1024)) #kB +_require_scratch_nocheck + +# set fs size 512M +dev_size=$((512 * 1024 * 1024)) +MKFS_OPTIONS="-O ^resize_inode $MKFS_OPTIONS" _scratch_mkfs_sized $dev_size \ + >>$seqres.full 2>&1 || _fail "mkfs failed" + +$DEBUGFS_PROG -w -R "set_super_value s_reserved_gdt_blocks 100" $SCRATCH_DEV \ + >>$seqres.full 2>&1 + +$DEBUGFS_PROG -R "show_super_stats -h" $SCRATCH_DEV 2>/dev/null | \ + grep "Reserved GDT blocks" + +_scratch_mount + +# resize fs will trigger NULL pointer in ext4_flex_group_add +$RESIZE2FS_PROG $SCRATCH_DEV 1G >> $seqres.full 2>&1 + +# success, all done +status=0 +exit diff --git a/tests/ext4/057.out b/tests/ext4/057.out new file mode 100644 index 00000000..99423e16 --- /dev/null +++ b/tests/ext4/057.out @@ -0,0 +1,2 @@ +QA output created by 057 +Reserved GDT blocks: 100 -- 2.13.6