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 8137EC43334 for ; Mon, 4 Jul 2022 09:04:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233476AbiGDJED (ORCPT ); Mon, 4 Jul 2022 05:04:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35178 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233472AbiGDJED (ORCPT ); Mon, 4 Jul 2022 05:04:03 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EDE2A2BE4; Mon, 4 Jul 2022 02:03:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:To:From:Sender: Reply-To:Cc:Content-Type:Content-ID:Content-Description; bh=BXMD3eBZWrMMKuXNz6z6e1fQKiIFb97oCky9PnYj5Eg=; b=JTB7ugRhoiGMy1hvPhgE/0eLNw IfLunhpQstJ6EIrlg+Jv3AI0FcVjNUvwm4vIM+wiYD0CbWPvwEt7tBj03BpwrmwGDYqA2QWAllmlg su1B7GJk1CEJ3aW8zIn56s/l2x21AEYvsOiJw3zcOG25IgVdkcOQ6VOe9ey4qKddpiPFSwU6a3S44 KWeUMPUV99Tw/gY3KMUWhi1BAVjiPao6WJWb3XUGEVfrRmnlASmbUtxgXlTtVzngmO4miEK9CLT34 MBiO90MCJZhdmKYqTjOp1YqZ0xST2/gYZSQoFFOU7x26/IJB1LnIIjUNPlaQzmudtiHHjJD1XnWMs nlJwVSTA==; Received: from 089144208244.atnat0017.highway.a1.net ([89.144.208.244] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8Hzq-006Ghd-0k; Mon, 04 Jul 2022 09:03:59 +0000 From: Christoph Hellwig To: fstests@vger.kernel.org, linux-btrfs@vger.kernel.org Subject: [PATCH 2/2] btrfs: test raid1 write error handling Date: Mon, 4 Jul 2022 11:03:46 +0200 Message-Id: <20220704090346.108134-2-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220704090346.108134-1-hch@lst.de> References: <20220704090346.108134-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Test that a write with a single bad mirror works fine but reports errors in the error counters, and that a write with two bad mirrors fails. Signed-off-by: Christoph Hellwig --- tests/btrfs/271 | 78 +++++++ tests/btrfs/271.out | 521 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 599 insertions(+) create mode 100755 tests/btrfs/271 create mode 100644 tests/btrfs/271.out diff --git a/tests/btrfs/271 b/tests/btrfs/271 new file mode 100755 index 00000000..c21858d1 --- /dev/null +++ b/tests/btrfs/271 @@ -0,0 +1,78 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2022 Christoph Hellwig. +# +# FS QA Test btrfs/271 +# +# Test btrfs write error propagation and reporting on the raid1 profile. +# +. ./common/preamble +_begin_fstest auto quick raid + +. ./common/filter + +_supported_fs btrfs +_require_scratch +_require_fail_make_request +_require_scratch_dev_pool 2 +_scratch_dev_pool_get 2 + +enable_io_failure() +{ + local sysfs_bdev=`_sysfs_dev $1` + + echo 1 > $sysfs_bdev/make-it-fail +} + +disable_io_failure() +{ + local sysfs_bdev=`_sysfs_dev $1` + + echo 0 > $sysfs_bdev/make-it-fail +} + +_check_minimal_fs_size $(( 1024 * 1024 * 1024 )) +_scratch_pool_mkfs "-d raid1 -b 1G" >> $seqres.full 2>&1 + +_scratch_mount + +dev2=`echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $2}'` + +pagesize=$(get_page_size) +blocksize=$(_get_block_size $SCRATCH_MNT) +sectors_per_page=$(($pagesize / $blocksize)) + +# enable block I/O error injection +echo 100 > $DEBUGFS_MNT/fail_make_request/probability +echo 1000 > $DEBUGFS_MNT/fail_make_request/times +echo 0 > $DEBUGFS_MNT/fail_make_request/verbose + +echo "Step 1: writing with one failing mirror:" +enable_io_failure $SCRATCH_DEV +$XFS_IO_PROG -f -c "pwrite -W -S 0xaa 0 8K" $SCRATCH_MNT/foobar | _filter_xfs_io +disable_io_failure $SCRATCH_DEV + +errs=$($BTRFS_UTIL_PROG device stats $SCRATCH_DEV | \ + $AWK_PROG '/write_io_errs/ { print $2 }') +if [ $errs -ne $((4 * $sectors_per_page)) ]; then + _fail "Errors: $errs expected: 4" +fi + +echo "Step 2: verify that the data reads back fine:" +$XFS_IO_PROG -c "pread -v 0 8K" $SCRATCH_MNT/foobar | _filter_xfs_io_offset + +echo "Step 3: writing with two failing mirrors (should fail):" +enable_io_failure $SCRATCH_DEV +enable_io_failure $dev2 +$XFS_IO_PROG -f -c "pwrite -W -S 0xbb 0 8K" $SCRATCH_MNT/foobar | _filter_xfs_io +disable_io_failure $dev2 +disable_io_failure $SCRATCH_DEV + +# disable block I/O error injection +echo 0 > $DEBUGFS_MNT/fail_make_request/probability +echo 0 > $DEBUGFS_MNT/fail_make_request/times + +_scratch_dev_pool_put +# success, all done +status=0 +exit diff --git a/tests/btrfs/271.out b/tests/btrfs/271.out new file mode 100644 index 00000000..27451c37 --- /dev/null +++ b/tests/btrfs/271.out @@ -0,0 +1,521 @@ +QA output created by 271 +Step 1: writing with one failing mirror: +wrote 8192/8192 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +Step 2: verify that the data reads back fine: +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa 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................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +XXXXXXXX: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +read 8192/8192 bytes +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +Step 3: writing with two failing mirrors (should fail): +fsync: Input/output error -- 2.30.2