From patchwork Wed Apr 21 00:23:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 12215237 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D5352C433ED for ; Wed, 21 Apr 2021 00:23:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9F77B6141D for ; Wed, 21 Apr 2021 00:23:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234567AbhDUAXm (ORCPT ); Tue, 20 Apr 2021 20:23:42 -0400 Received: from mail.kernel.org ([198.145.29.99]:36722 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233807AbhDUAXk (ORCPT ); Tue, 20 Apr 2021 20:23:40 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6BD676141C; Wed, 21 Apr 2021 00:23:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1618964588; bh=n2SMwFS2H16MLEaQt6yaZgpsTRX6/bc3ElUS6w6VrK8=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=D3O4pgFUZ8BdE+steSLUnQ/3+LfxxtKJBr1Z/lN7/lavZbg4xT5owGfAm3Vy1fEx/ IRTpM6LF1PY4nEzpEFnogtmLebHxtmk7JykbY3D48kFY8w5z0wTCHkr/7Vl11SJmHo uAS/pjHD/94Ytu01iUJ+Ee9pYTURh1KDaFQQUxG8ko+sqW7t4P8B5xl03W4yiJf5uS 3+gokTA8ikmyy7Q1gY9piPoDIAluu2ffyLOoqq3pj9vf6OjMEkIETfZf+yHoDMPinX dZpLQpVn6BFWnewye1L0rm4jtm48XneQP45I/9E7S9VVHKgqBe+Klx2vzldLBB82I2 chkq+xYv/XQOw== Subject: [PATCH 1/4] generic: check userspace handling of extreme timestamps From: "Darrick J. Wong" To: djwong@kernel.org, guaneryu@gmail.com Cc: Amir Goldstein , linux-xfs@vger.kernel.org, fstests@vger.kernel.org, guan@eryu.me Date: Tue, 20 Apr 2021 17:23:07 -0700 Message-ID: <161896458765.776452.776474866675909773.stgit@magnolia> In-Reply-To: <161896458140.776452.9583732658582318883.stgit@magnolia> References: <161896458140.776452.9583732658582318883.stgit@magnolia> User-Agent: StGit/0.19 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org From: Darrick J. Wong These two tests ensure we can store and retrieve timestamps on the extremes of the date ranges supported by userspace, and the common places where overflows can happen. They differ from generic/402 in that they don't constrain the dates tested to the range that the filesystem claims to support; we attempt various things that /userspace/ can parse, and then check that the vfs clamps and persists the values correctly. Signed-off-by: Darrick J. Wong Reviewed-by: Amir Goldstein Reviewed-by: Allison Henderson --- tests/generic/721 | 123 ++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/721.out | 2 + tests/generic/722 | 125 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/722.out | 1 tests/generic/group | 6 ++ 5 files changed, 255 insertions(+), 2 deletions(-) create mode 100755 tests/generic/721 create mode 100644 tests/generic/721.out create mode 100755 tests/generic/722 create mode 100644 tests/generic/722.out diff --git a/tests/generic/721 b/tests/generic/721 new file mode 100755 index 00000000..9198b6b4 --- /dev/null +++ b/tests/generic/721 @@ -0,0 +1,123 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0-or-later +# Copyright (c) 2021 Oracle. All Rights Reserved. +# +# FS QA Test No. 721 +# +# Make sure we can store and retrieve timestamps on the extremes of the +# date ranges supported by userspace, and the common places where overflows +# can happen. +# +# This differs from generic/402 in that we don't constrain ourselves to the +# range that the filesystem claims to support; we attempt various things that +# /userspace/ can parse, and then check that the vfs clamps and persists the +# values correctly. +# +# NOTE: Old kernels (pre 5.4) allow filesystems to truncate timestamps silently +# when writing timestamps to disk! This test detects this silent truncation +# and fails. If you see a failure on such a kernel, contact your distributor +# for an update. + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc + +# real QA test starts here +_supported_fs generic +_require_scratch + +rm -f $seqres.full + +_scratch_mkfs > $seqres.full +_scratch_mount + +# Does our userspace even support large dates? +test_bigdates=1 +touch -d 'May 30 01:53:03 UTC 2514' $SCRATCH_MNT 2>/dev/null || test_bigdates=0 + +# And can we do statx? +test_statx=1 +($XFS_IO_PROG -c 'help statx' | grep -q 'Print raw statx' && \ + $XFS_IO_PROG -c 'statx -r' $SCRATCH_MNT 2>/dev/null | grep -q 'stat.mtime') || \ + test_statx=0 + +echo "Userspace support of large timestamps: $test_bigdates" >> $seqres.full +echo "xfs_io support of statx: $test_statx" >> $seqres.full + +touchme() { + local arg="$1" + local name="$2" + + echo "$arg" > $SCRATCH_MNT/t_$name + touch -d "$arg" $SCRATCH_MNT/t_$name +} + +report() { + local files=($SCRATCH_MNT/t_*) + for file in "${files[@]}"; do + echo "${file}: $(cat "${file}")" + TZ=UTC stat -c '%y %Y %n' "${file}" + test $test_statx -gt 0 && \ + $XFS_IO_PROG -c 'statx -r' "${file}" | grep 'stat.mtime' + done +} + +# -2147483648 (S32_MIN, or classic unix min) +touchme 'Dec 13 20:45:52 UTC 1901' s32_min + +# 2147483647 (S32_MAX, or classic unix max) +touchme 'Jan 19 03:14:07 UTC 2038' s32_max + +# 7956915742, all twos +touchme 'Feb 22 22:22:22 UTC 2222' all_twos + +if [ $test_bigdates -gt 0 ]; then + # 16299260424 (u64 nsec counter from s32_min, like xfs does) + touchme 'Tue Jul 2 20:20:24 UTC 2486' u64ns_from_s32_min + + # 15032385535 (u34 time if you start from s32_min, like ext4 does) + touchme 'May 10 22:38:55 UTC 2446' u34_from_s32_min + + # 17179869183 (u34 time if you start from the unix epoch) + touchme 'May 30 01:53:03 UTC 2514' u34_max + + # Latest date we can synthesize(?) + touchme 'Dec 31 23:59:59 UTC 2147483647' abs_max_time + + # Earliest date we can synthesize(?) + touchme 'Jan 1 00:00:00 UTC 0' abs_min_time +fi + +# Query timestamps from incore +echo before >> $seqres.full +report > $tmp.before_remount +cat $tmp.before_remount >> $seqres.full + +_scratch_cycle_mount + +# Query timestamps from disk +echo after >> $seqres.full +report > $tmp.after_remount +cat $tmp.after_remount >> $seqres.full + +# Did they match? +cmp -s $tmp.before_remount $tmp.after_remount + +# success, all done +echo Silence is golden. +status=0 +exit diff --git a/tests/generic/721.out b/tests/generic/721.out new file mode 100644 index 00000000..b2bc6d58 --- /dev/null +++ b/tests/generic/721.out @@ -0,0 +1,2 @@ +QA output created by 721 +Silence is golden. diff --git a/tests/generic/722 b/tests/generic/722 new file mode 100755 index 00000000..305c3bd6 --- /dev/null +++ b/tests/generic/722 @@ -0,0 +1,125 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0-or-later +# Copyright (c) 2021 Oracle. All Rights Reserved. +# +# FS QA Test No. 722 +# +# Make sure we can store and retrieve timestamps on the extremes of the +# date ranges supported by userspace, and the common places where overflows +# can happen. This test also ensures that the timestamps are persisted +# correctly after a shutdown. +# +# This differs from generic/402 in that we don't constrain ourselves to the +# range that the filesystem claims to support; we attempt various things that +# /userspace/ can parse, and then check that the vfs clamps and persists the +# values correctly. +# +# NOTE: Old kernels (pre 5.4) allow filesystems to truncate timestamps silently +# when writing timestamps to disk! This test detects this silent truncation +# and fails. If you see a failure on such a kernel, contact your distributor +# for an update. + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc + +# real QA test starts here +_supported_fs generic +_require_scratch +_require_scratch_shutdown + +rm -f $seqres.full + +_scratch_mkfs > $seqres.full +_scratch_mount + +# Does our userspace even support large dates? +test_bigdates=1 +touch -d 'May 30 01:53:03 UTC 2514' $SCRATCH_MNT 2>/dev/null || test_bigdates=0 + +# And can we do statx? +test_statx=1 +($XFS_IO_PROG -c 'help statx' | grep -q 'Print raw statx' && \ + $XFS_IO_PROG -c 'statx -r' $SCRATCH_MNT 2>/dev/null | grep -q 'stat.mtime') || \ + test_statx=0 + +echo "Userspace support of large timestamps: $test_bigdates" >> $seqres.full +echo "xfs_io support of statx: $test_statx" >> $seqres.full + +touchme() { + local arg="$1" + local name="$2" + + echo "$arg" > $SCRATCH_MNT/t_$name + touch -d "$arg" $SCRATCH_MNT/t_$name +} + +report() { + local files=($SCRATCH_MNT/t_*) + for file in "${files[@]}"; do + echo "${file}: $(cat "${file}")" + TZ=UTC stat -c '%y %Y %n' "${file}" + test $test_statx -gt 0 && \ + $XFS_IO_PROG -c 'statx -r' "${file}" | grep 'stat.mtime' + done +} + +# -2147483648 (S32_MIN, or classic unix min) +touchme 'Dec 13 20:45:52 UTC 1901' s32_min + +# 2147483647 (S32_MAX, or classic unix max) +touchme 'Jan 19 03:14:07 UTC 2038' s32_max + +# 7956915742, all twos +touchme 'Feb 22 22:22:22 UTC 2222' all_twos + +if [ $test_bigdates -gt 0 ]; then + # 16299260424 (u64 nsec counter from s32_min, like xfs does) + touchme 'Tue Jul 2 20:20:24 UTC 2486' u64ns_from_s32_min + + # 15032385535 (u34 time if you start from s32_min, like ext4 does) + touchme 'May 10 22:38:55 UTC 2446' u34_from_s32_min + + # 17179869183 (u34 time if you start from the unix epoch) + touchme 'May 30 01:53:03 UTC 2514' u34_max + + # Latest date we can synthesize(?) + touchme 'Dec 31 23:59:59 UTC 2147483647' abs_max_time + + # Earliest date we can synthesize(?) + touchme 'Jan 1 00:00:00 UTC 0' abs_min_time +fi + +# Query timestamps from incore +echo before >> $seqres.full +report > $tmp.before_crash +cat $tmp.before_crash >> $seqres.full + +_scratch_shutdown -f +_scratch_cycle_mount + +# Query timestamps from disk +echo after >> $seqres.full +report > $tmp.after_crash +cat $tmp.after_crash >> $seqres.full + +# Did they match? +cmp -s $tmp.before_crash $tmp.after_crash + +# success, all done +status=0 +exit diff --git a/tests/generic/722.out b/tests/generic/722.out new file mode 100644 index 00000000..83acd5cf --- /dev/null +++ b/tests/generic/722.out @@ -0,0 +1 @@ +QA output created by 722 diff --git a/tests/generic/group b/tests/generic/group index 033465f1..21ac0c8f 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -260,7 +260,7 @@ 255 auto quick prealloc punch 256 auto quick punch 257 dir auto quick -258 auto quick +258 auto quick bigtime 259 auto quick clone zero 260 auto quick trim 261 auto quick clone collapse @@ -404,7 +404,7 @@ 399 auto encrypt 400 auto quick quota 401 auto quick -402 auto quick rw +402 auto quick rw bigtime 403 auto quick attr 404 auto quick insert 405 auto mkfs thin @@ -636,3 +636,5 @@ 631 auto rw overlay rename 632 auto quick mount 633 auto quick atime attr cap idmapped io_uring mount perms rw unlink +721 auto quick atime bigtime +722 auto quick atime bigtime shutdown