From patchwork Tue Mar 17 18:16:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alberto Garcia X-Patchwork-Id: 11443787 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E600F14DD for ; Tue, 17 Mar 2020 18:42:14 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A851A20714 for ; Tue, 17 Mar 2020 18:42:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b="Oxuo4lVX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A851A20714 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=igalia.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:39658 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jEHAL-0006Ek-SX for patchwork-qemu-devel@patchwork.kernel.org; Tue, 17 Mar 2020 14:42:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49107) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jEGn4-0003j5-Gy for qemu-devel@nongnu.org; Tue, 17 Mar 2020 14:18:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jEGmv-00009z-A8 for qemu-devel@nongnu.org; Tue, 17 Mar 2020 14:18:10 -0400 Received: from fanzine.igalia.com ([178.60.130.6]:58021) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1jEGmu-0005yT-4H; Tue, 17 Mar 2020 14:18:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=RPN/yHP4znLKszxyOoU+Ptsu4yTPY7OKYSkTrSXwvTY=; b=Oxuo4lVXUoOvsLlBJXN24+Zq1WO5QU8AnYp3gJ6aTn8icz+kebFV6nG3niAVhQkyRw6V7ewU0pKp5WEVDj8+XlDFcWWuMUE17ZbqQW0Zianp5WuFjCwakK5j9qwPZczUgvvKzgSQYUQD2vjmeys4W99pfJp/VwxtJqv/oTc/41afsM6fyFYrOc15kW23wQDXN6p/LltYHt7UTAD0PElH7Pg/vajt5AGoEEkWu3iMO3TbpC+j3bvCLNRON5T1K4w+JiwtqU38zpbW4dcc5Wu6fRpbeC6gvfyx8XMD1cv+1k9O1eHtkaYqfaNzqpKH+opetXowOF2XdVq/9WXuTl2tGQ==; Received: from [81.0.35.138] (helo=perseus.local) by fanzine.igalia.com with esmtpsa (Cipher TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim) id 1jEGmD-00015R-0h; Tue, 17 Mar 2020 19:17:17 +0100 Received: from berto by perseus.local with local (Exim 4.92) (envelope-from ) id 1jEGlx-0006P1-2D; Tue, 17 Mar 2020 19:17:01 +0100 From: Alberto Garcia To: qemu-devel@nongnu.org Subject: [PATCH v4 30/30] iotests: Add tests for qcow2 images with extended L2 entries Date: Tue, 17 Mar 2020 19:16:27 +0100 Message-Id: <420b76fbe25d5e2eeda53490a1c646935dab61c4.1584468724.git.berto@igalia.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x (no timestamps) [generic] [fuzzy] X-Received-From: 178.60.130.6 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Anton Nefedov , Alberto Garcia , qemu-block@nongnu.org, Max Reitz , Vladimir Sementsov-Ogievskiy , "Denis V . Lunev" Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Alberto Garcia --- tests/qemu-iotests/271 | 359 +++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/271.out | 244 +++++++++++++++++++++++++ tests/qemu-iotests/group | 1 + 3 files changed, 604 insertions(+) create mode 100755 tests/qemu-iotests/271 create mode 100644 tests/qemu-iotests/271.out diff --git a/tests/qemu-iotests/271 b/tests/qemu-iotests/271 new file mode 100755 index 0000000000..48f4d8d8ce --- /dev/null +++ b/tests/qemu-iotests/271 @@ -0,0 +1,359 @@ +#!/bin/bash +# +# Test qcow2 images with extended L2 entries +# +# Copyright (C) 2019-2020 Igalia, S.L. +# Author: Alberto Garcia +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . +# + +# creator +owner=berto@igalia.com + +seq="$(basename $0)" +echo "QA output created by $seq" + +here="$PWD" +status=1 # failure is the default! + +_cleanup() +{ + _cleanup_test_img + rm -f "$TEST_IMG.raw" + rm -f "$TEST_IMG.backing" +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +. ./common.rc +. ./common.filter + +_supported_fmt qcow2 +_supported_proto file nfs +_supported_os Linux + +IMGOPTS="extended_l2=on" +l2_offset=262144 # 0x40000 + +_verify_img() +{ + $QEMU_IMG compare "$TEST_IMG" "$TEST_IMG.raw" | grep -v 'Images are identical' + $QEMU_IMG check "$TEST_IMG" | _filter_qemu_img_check | \ + grep -v 'No errors were found on the image' +} + +# Compare the bitmap of an extended L2 entry against an expected value +_verify_l2_bitmap() +{ + entry_no="$1" # L2 entry number, starting from 0 + expected_alloc="$2" # Space-separated list of allocated subcluster indexes + expected_zero="$3" # Space-separated list of zero subcluster indexes + + offset=$(($l2_offset + $entry_no * 16)) + entry=`peek_file_be "$TEST_IMG" $offset 8` + offset=$(($offset + 8)) + bitmap=`peek_file_be "$TEST_IMG" $offset 8` + + expected_bitmap=0 + for bit in $expected_alloc; do + expected_bitmap=$(($expected_bitmap | (1 << $bit))) + done + for bit in $expected_zero; do + expected_bitmap=$(($expected_bitmap | (1 << (32 + $bit)))) + done + expected_bitmap=`printf "%llu" $expected_bitmap` + + printf "L2 entry #%d: 0x%016lx %016lx\n" "$entry_no" "$entry" "$bitmap" + if [ "$bitmap" != "$expected_bitmap" ]; then + printf "ERROR: expecting bitmap 0x%016lx\n" "$expected_bitmap" + fi +} + +_test_write() +{ + cmd="$1" + alloc_bitmap="$2" + zero_bitmap="$3" + l2_entry_idx="$4" + [ -n "$l2_entry_idx" ] || l2_entry_idx=0 + raw_cmd=`echo $cmd | sed s/-c//` # Raw images don't support -c + echo "$cmd" + $QEMU_IO -c "$cmd" "$TEST_IMG" | _filter_qemu_io + $QEMU_IO -c "$raw_cmd" -f raw "$TEST_IMG.raw" | _filter_qemu_io + _verify_img + _verify_l2_bitmap "$l2_entry_idx" "$alloc_bitmap" "$zero_bitmap" +} + +_reset_img() +{ + $QEMU_IMG create -f raw "$TEST_IMG.raw" 1M | _filter_img_create + if [ "$use_backing_file" = "yes" ]; then + $QEMU_IMG create -f raw "$TEST_IMG.backing" 1M | _filter_img_create + $QEMU_IO -c 'write -q -P 0xFF 0 1M' -f raw "$TEST_IMG.backing" | _filter_qemu_io + $QEMU_IO -c 'write -q -P 0xFF 0 1M' -f raw "$TEST_IMG.raw" | _filter_qemu_io + _make_test_img -b "$TEST_IMG.backing" 1M + else + _make_test_img 1M + fi +} + +# Test that writing to an image with subclusters produces the expected +# results, in images with and without backing files +for use_backing_file in yes no; do + echo + echo "### Standard write tests (backing file: $use_backing_file) ###" + echo + _reset_img + ### Write subcluster #0 (beginning of subcluster) ### + alloc="0"; zero="" + _test_write 'write -q -P 1 0 1k' "$alloc" "$zero" + + ### Write subcluster #1 (middle of subcluster) ### + alloc="0 1"; zero="" + _test_write 'write -q -P 2 3k 512' "$alloc" "$zero" + + ### Write subcluster #2 (end of subcluster) ### + alloc="0 1 2"; zero="" + _test_write 'write -q -P 3 5k 1k' "$alloc" "$zero" + + ### Write subcluster #3 (full subcluster) ### + alloc="0 1 2 3"; zero="" + _test_write 'write -q -P 4 6k 2k' "$alloc" "$zero" + + ### Write subclusters #4-6 (full subclusters) ### + alloc="`seq 0 6`"; zero="" + _test_write 'write -q -P 5 8k 6k' "$alloc" "$zero" + + ### Write subclusters #7-9 (partial subclusters) ### + alloc="`seq 0 9`"; zero="" + _test_write 'write -q -P 6 15k 4k' "$alloc" "$zero" + + ### Write subcluster #16 (partial subcluster) ### + alloc="`seq 0 9` 16"; zero="" + _test_write 'write -q -P 7 32k 1k' "$alloc" "$zero" + + ### Write subcluster #31-#34 (cluster overlap) ### + alloc="`seq 0 9` 16 31"; zero="" + _test_write 'write -q -P 8 63k 4k' "$alloc" "$zero" + alloc="0 1" ; zero="" + _verify_l2_bitmap 1 "$alloc" "$zero" + + ### Zero subcluster #1 (TODO: use the "all zeros" bit) + alloc="`seq 0 9` 16 31"; zero="" + _test_write 'write -q -z 2k 2k' "$alloc" "$zero" + + ### Zero cluster #0 + alloc=""; zero="`seq 0 31`" + _test_write 'write -q -z 0 64k' "$alloc" "$zero" + + ### Fill cluster #0 with data + alloc="`seq 0 31`"; zero="" + _test_write 'write -q -P 9 0 64k' "$alloc" "$zero" + + ### Zero and unmap half of cluster #0 (this won't unmap it) + alloc="`seq 0 31`"; zero="" + _test_write 'write -q -z -u 0 32k' "$alloc" "$zero" + + ### Zero and unmap cluster #0 + alloc=""; zero="`seq 0 31`" + _test_write 'write -q -z -u 0 64k' "$alloc" "$zero" + + ### Write subcluster #1 (middle of subcluster) + alloc="1"; zero="0 `seq 2 31`" + _test_write 'write -q -P 10 3k 512' "$alloc" "$zero" + + ### Fill cluster #0 with data + alloc="`seq 0 31`"; zero="" + _test_write 'write -q -P 11 0 64k' "$alloc" "$zero" + + ### Discard cluster #0 + alloc=""; zero="`seq 0 31`" + _test_write 'discard -q 0 64k' "$alloc" "$zero" + + ### Write compressed data to cluster #0 + alloc=""; zero="" + _test_write 'write -q -c -P 12 0 64k' "$alloc" "$zero" + + ### Write subcluster #2 (middle of subcluster) + alloc="`seq 0 31`"; zero="" + _test_write 'write -q -P 13 3k 512' "$alloc" "$zero" + + ### Zeroize an unallocated cluster (#2) + alloc=""; zero="`seq 0 31`" + _test_write 'write -q -z 128k 64k' "$alloc" "$zero" 2 + + ### Partially zeroize an unallocated cluster (#3) + if [ "$use_backing_file" = "yes" ]; then + alloc="`seq 0 15`"; zero="" + else + alloc=""; zero="`seq 0 31`" + fi + _test_write 'write -q -z 192k 32k' "$alloc" "$zero" 3 +done + +for use_backing_file in yes no; do + echo + echo "### Discarding clusters with non-zero bitmaps (backing file: $use_backing_file) ###" + echo + if [ "$use_backing_file" = "yes" ]; then + _make_test_img -b "$TEST_IMG.backing" 1M + else + _make_test_img 1M + fi + # Write clusters #0-#2 and then discard them + $QEMU_IO -c 'write -q 0 128k' "$TEST_IMG" + $QEMU_IO -c 'discard -q 0 128k' "$TEST_IMG" + # 'qemu-io discard' doesn't do a full discard, it zeroizes the + # cluster, so both clusters have all zero bits set now + alloc=""; zero="`seq 0 31`" + _verify_l2_bitmap 0 "$alloc" "$zero" + _verify_l2_bitmap 1 "$alloc" "$zero" + # Now deallocate half of the subclusters of the first cluster + poke_file "$TEST_IMG" $(($l2_offset+8)) "\x00\x00" + # Discard cluster #0 again to see how the zero bits have changed + $QEMU_IO -c 'discard -q 0 64k' "$TEST_IMG" + # And do a full discard of cluster #1 by shrinking and growing the image + $QEMU_IMG resize --shrink "$TEST_IMG" 64k + $QEMU_IMG resize "$TEST_IMG" 1M + # A normal discard sets all 'zero' bits only if the image has a + # backing file, otherwise it won't touch them. + if [ "$use_backing_file" = "yes" ]; then + alloc=""; zero="`seq 0 31`" + else + alloc=""; zero="`seq 0 15`" + fi + _verify_l2_bitmap 0 "$alloc" "$zero" + # A full discard should clear the L2 entry completely + alloc=""; zero="" + _verify_l2_bitmap 1 "$alloc" "$zero" +done + +# Test that corrupted L2 entries are detected in both read and write +# operations +for corruption_test_cmd in read write; do + echo + echo "### Corrupted L2 entries - $corruption_test_cmd test (allocated) ###" + echo + echo "# 'cluster is zero' bit set on the standard cluster descriptor" + echo + _make_test_img 1M + $QEMU_IO -c 'write -q 0 2k' "$TEST_IMG" + poke_file "$TEST_IMG" $(($l2_offset+7)) "\x01" + alloc="0"; zero="" + _verify_l2_bitmap 0 "$alloc" "$zero" + $QEMU_IO -c "$corruption_test_cmd 0 1k" "$TEST_IMG" + + echo + echo "# Both 'subcluster is zero' and 'subcluster is allocated' bits set" + echo + _make_test_img 1M + $QEMU_IO -c 'write -q 0 2k' "$TEST_IMG" + poke_file "$TEST_IMG" $(($l2_offset+11)) "\x01" + alloc="0"; zero="0" + _verify_l2_bitmap 0 "$alloc" "$zero" + $QEMU_IO -c "$corruption_test_cmd 0 1k" "$TEST_IMG" + + echo + echo "### Corrupted L2 entries - $corruption_test_cmd test (unallocated) ###" + echo + echo "# 'cluster is zero' bit set on the standard cluster descriptor" + echo + _make_test_img 1M + # We want to corrupt the (empty) L2 entry from cluster #0, + # but we write to #4 in order to initialize the L2 table first + $QEMU_IO -c 'write -q 256k 1k' "$TEST_IMG" + poke_file "$TEST_IMG" $(($l2_offset+7)) "\x01" + alloc=""; zero="" + _verify_l2_bitmap 0 "$alloc" "$zero" + $QEMU_IO -c "$corruption_test_cmd 0 1k" "$TEST_IMG" + + echo + echo "# 'subcluster is allocated' bit set" + echo + _make_test_img 1M + # We want to corrupt the (empty) L2 entry from cluster #0, + # but we write to #4 in order to initialize the L2 table first + $QEMU_IO -c 'write -q 256k 1k' "$TEST_IMG" + poke_file "$TEST_IMG" $(($l2_offset+15)) "\x01" + alloc="0"; zero="" + _verify_l2_bitmap 0 "$alloc" "$zero" + $QEMU_IO -c "$corruption_test_cmd 0 1k" "$TEST_IMG" + + echo + echo "# Both 'subcluster is zero' and 'subcluster is allocated' bits set" + echo + _make_test_img 1M + # We want to corrupt the (empty) L2 entry from cluster #0, + # but we write to #4 in order to initialize the L2 table first + $QEMU_IO -c 'write -q 256k 1k' "$TEST_IMG" + poke_file "$TEST_IMG" $(($l2_offset+8)) "\x00\x00\x00\x01\x00\x00\x00\x01" + alloc="0"; zero="0" + _verify_l2_bitmap 0 "$alloc" "$zero" + $QEMU_IO -c "$corruption_test_cmd 0 1k" "$TEST_IMG" + + echo + echo "### Compressed cluster with subcluster bitmap != 0 - $corruption_test_cmd test ###" + echo + # We actually don't consider this a corrupted image. + # The bitmap in compressed clusters is unused so QEMU should just ignore it. + _make_test_img 1M + $QEMU_IO -c 'write -q -P 11 -c 0 64k' "$TEST_IMG" + poke_file "$TEST_IMG" $(($l2_offset+11)) "\x01\x01" + alloc="24"; zero="0" + _verify_l2_bitmap 0 "$alloc" "$zero" + $QEMU_IO -c "$corruption_test_cmd -P 11 0 64k" "$TEST_IMG" | _filter_qemu_io +done + +echo +echo "### Image creation options ###" +echo +echo "# cluster_size < 16k" +IMGOPTS="extended_l2=on,cluster_size=8k" _make_test_img 1M + +echo "# backing file and preallocation=metadata" +IMGOPTS="extended_l2=on,preallocation=metadata" _make_test_img -b "$TEST_IMG.backing" 1M + +echo "# backing file and preallocation=falloc" +IMGOPTS="extended_l2=on,preallocation=falloc" _make_test_img -b "$TEST_IMG.backing" 1M + +echo "# backing file and preallocation=full" +IMGOPTS="extended_l2=on,preallocation=full" _make_test_img -b "$TEST_IMG.backing" 1M + +echo +echo "### qemu-img measure ###" +echo +echo "# 512MB, extended_l2=off" # This needs one L2 table +$QEMU_IMG measure --size 512M -O qcow2 -o extended_l2=off +echo "# 512MB, extended_l2=on" # This needs two L2 tables +$QEMU_IMG measure --size 512M -O qcow2 -o extended_l2=on + +echo "# 16K clusters, 64GB, extended_l2=off" # This needs one L1 table +$QEMU_IMG measure --size 64G -O qcow2 -o cluster_size=16k,extended_l2=off +echo "# 16K clusters, 64GB, extended_l2=on" # This needs two L2 tables +$QEMU_IMG measure --size 64G -O qcow2 -o cluster_size=16k,extended_l2=on + +echo "# 8k clusters" # This should fail +$QEMU_IMG measure --size 1M -O qcow2 -o cluster_size=8k,extended_l2=on + +echo "# 1024 TB" # Maximum allowed size with extended_l2=on and 64K clusters +$QEMU_IMG measure --size 1024T -O qcow2 -o extended_l2=on +echo "# 1025 TB" # This should fail +$QEMU_IMG measure --size 1025T -O qcow2 -o extended_l2=on + +# success, all done +echo "*** done" +rm -f $seq.full +status=0 + diff --git a/tests/qemu-iotests/271.out b/tests/qemu-iotests/271.out new file mode 100644 index 0000000000..c36dcaafc4 --- /dev/null +++ b/tests/qemu-iotests/271.out @@ -0,0 +1,244 @@ +QA output created by 271 + +### Standard write tests (backing file: yes) ### + +Formatting 'TEST_DIR/t.IMGFMT.raw', fmt=raw size=1048576 +Formatting 'TEST_DIR/t.IMGFMT.backing', fmt=raw size=1048576 +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT.backing +write -q -P 1 0 1k +L2 entry #0: 0x8000000000050000 0000000000000001 +write -q -P 2 3k 512 +L2 entry #0: 0x8000000000050000 0000000000000003 +write -q -P 3 5k 1k +L2 entry #0: 0x8000000000050000 0000000000000007 +write -q -P 4 6k 2k +L2 entry #0: 0x8000000000050000 000000000000000f +write -q -P 5 8k 6k +L2 entry #0: 0x8000000000050000 000000000000007f +write -q -P 6 15k 4k +L2 entry #0: 0x8000000000050000 00000000000003ff +write -q -P 7 32k 1k +L2 entry #0: 0x8000000000050000 00000000000103ff +write -q -P 8 63k 4k +L2 entry #0: 0x8000000000050000 00000000800103ff +L2 entry #1: 0x8000000000060000 0000000000000003 +write -q -z 2k 2k +L2 entry #0: 0x8000000000050000 00000000800103ff +write -q -z 0 64k +L2 entry #0: 0x8000000000050000 ffffffff00000000 +write -q -P 9 0 64k +L2 entry #0: 0x8000000000050000 00000000ffffffff +write -q -z -u 0 32k +L2 entry #0: 0x8000000000050000 00000000ffffffff +write -q -z -u 0 64k +L2 entry #0: 0x0000000000000000 ffffffff00000000 +write -q -P 10 3k 512 +L2 entry #0: 0x8000000000050000 fffffffd00000002 +write -q -P 11 0 64k +L2 entry #0: 0x8000000000050000 00000000ffffffff +discard -q 0 64k +L2 entry #0: 0x0000000000000000 ffffffff00000000 +write -q -c -P 12 0 64k +L2 entry #0: 0x4000000000050000 0000000000000000 +write -q -P 13 3k 512 +L2 entry #0: 0x8000000000070000 00000000ffffffff +write -q -z 128k 64k +L2 entry #2: 0x0000000000000000 ffffffff00000000 +write -q -z 192k 32k +L2 entry #3: 0x8000000000050000 000000000000ffff + +### Standard write tests (backing file: no) ### + +Formatting 'TEST_DIR/t.IMGFMT.raw', fmt=raw size=1048576 +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +write -q -P 1 0 1k +L2 entry #0: 0x8000000000050000 0000000000000001 +write -q -P 2 3k 512 +L2 entry #0: 0x8000000000050000 0000000000000003 +write -q -P 3 5k 1k +L2 entry #0: 0x8000000000050000 0000000000000007 +write -q -P 4 6k 2k +L2 entry #0: 0x8000000000050000 000000000000000f +write -q -P 5 8k 6k +L2 entry #0: 0x8000000000050000 000000000000007f +write -q -P 6 15k 4k +L2 entry #0: 0x8000000000050000 00000000000003ff +write -q -P 7 32k 1k +L2 entry #0: 0x8000000000050000 00000000000103ff +write -q -P 8 63k 4k +L2 entry #0: 0x8000000000050000 00000000800103ff +L2 entry #1: 0x8000000000060000 0000000000000003 +write -q -z 2k 2k +L2 entry #0: 0x8000000000050000 00000000800103ff +write -q -z 0 64k +L2 entry #0: 0x8000000000050000 ffffffff00000000 +write -q -P 9 0 64k +L2 entry #0: 0x8000000000050000 00000000ffffffff +write -q -z -u 0 32k +L2 entry #0: 0x8000000000050000 00000000ffffffff +write -q -z -u 0 64k +L2 entry #0: 0x0000000000000000 ffffffff00000000 +write -q -P 10 3k 512 +L2 entry #0: 0x8000000000050000 fffffffd00000002 +write -q -P 11 0 64k +L2 entry #0: 0x8000000000050000 00000000ffffffff +discard -q 0 64k +L2 entry #0: 0x0000000000000000 ffffffff00000000 +write -q -c -P 12 0 64k +L2 entry #0: 0x4000000000050000 0000000000000000 +write -q -P 13 3k 512 +L2 entry #0: 0x8000000000070000 00000000ffffffff +write -q -z 128k 64k +L2 entry #2: 0x0000000000000000 ffffffff00000000 +write -q -z 192k 32k +L2 entry #3: 0x0000000000000000 ffffffff00000000 + +### Discarding clusters with non-zero bitmaps (backing file: yes) ### + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT.backing +L2 entry #0: 0x0000000000000000 ffffffff00000000 +L2 entry #1: 0x0000000000000000 ffffffff00000000 +Image resized. +Image resized. +L2 entry #0: 0x0000000000000000 ffffffff00000000 +L2 entry #1: 0x0000000000000000 0000000000000000 + +### Discarding clusters with non-zero bitmaps (backing file: no) ### + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x0000000000000000 ffffffff00000000 +L2 entry #1: 0x0000000000000000 ffffffff00000000 +Image resized. +Image resized. +L2 entry #0: 0x0000000000000000 0000ffff00000000 +L2 entry #1: 0x0000000000000000 0000000000000000 + +### Corrupted L2 entries - read test (allocated) ### + +# 'cluster is zero' bit set on the standard cluster descriptor + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x8000000000050001 0000000000000001 +qcow2: Marking image as corrupt: Invalid cluster entry found (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed +read failed: Input/output error + +# Both 'subcluster is zero' and 'subcluster is allocated' bits set + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x8000000000050000 0000000100000001 +qcow2: Marking image as corrupt: Invalid cluster entry found (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed +read failed: Input/output error + +### Corrupted L2 entries - read test (unallocated) ### + +# 'cluster is zero' bit set on the standard cluster descriptor + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x0000000000000001 0000000000000000 +qcow2: Marking image as corrupt: Invalid cluster entry found (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed +read failed: Input/output error + +# 'subcluster is allocated' bit set + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x0000000000000000 0000000000000001 +qcow2: Marking image as corrupt: Invalid cluster entry found (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed +read failed: Input/output error + +# Both 'subcluster is zero' and 'subcluster is allocated' bits set + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x0000000000000000 0000000100000001 +qcow2: Marking image as corrupt: Invalid cluster entry found (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed +read failed: Input/output error + +### Compressed cluster with subcluster bitmap != 0 - read test ### + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x4000000000050000 0000000101000000 +read 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +### Corrupted L2 entries - write test (allocated) ### + +# 'cluster is zero' bit set on the standard cluster descriptor + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x8000000000050001 0000000000000001 +qcow2: Marking image as corrupt: Invalid cluster entry found (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed +write failed: Input/output error + +# Both 'subcluster is zero' and 'subcluster is allocated' bits set + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x8000000000050000 0000000100000001 +qcow2: Marking image as corrupt: Invalid cluster entry found (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed +write failed: Input/output error + +### Corrupted L2 entries - write test (unallocated) ### + +# 'cluster is zero' bit set on the standard cluster descriptor + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x0000000000000001 0000000000000000 +qcow2: Marking image as corrupt: Invalid cluster entry found (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed +write failed: Input/output error + +# 'subcluster is allocated' bit set + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x0000000000000000 0000000000000001 +qcow2: Marking image as corrupt: Invalid cluster entry found (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed +write failed: Input/output error + +# Both 'subcluster is zero' and 'subcluster is allocated' bits set + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x0000000000000000 0000000100000001 +qcow2: Marking image as corrupt: Invalid cluster entry found (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed +write failed: Input/output error + +### Compressed cluster with subcluster bitmap != 0 - write test ### + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +L2 entry #0: 0x4000000000050000 0000000101000000 +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +### Image creation options ### + +# cluster_size < 16k +qemu-img: TEST_DIR/t.IMGFMT: Extended L2 entries are only supported with cluster sizes of at least 16384 bytes +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +# backing file and preallocation=metadata +qemu-img: TEST_DIR/t.IMGFMT: Backing file and preallocation cannot be used at the same time +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT.backing preallocation=metadata +# backing file and preallocation=falloc +qemu-img: TEST_DIR/t.IMGFMT: Backing file and preallocation cannot be used at the same time +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT.backing preallocation=falloc +# backing file and preallocation=full +qemu-img: TEST_DIR/t.IMGFMT: Backing file and preallocation cannot be used at the same time +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT.backing preallocation=full + +### qemu-img measure ### + +# 512MB, extended_l2=off +required size: 327680 +fully allocated size: 537198592 +# 512MB, extended_l2=on +required size: 393216 +fully allocated size: 537264128 +# 16K clusters, 64GB, extended_l2=off +required size: 42008576 +fully allocated size: 68761485312 +# 16K clusters, 64GB, extended_l2=on +required size: 75579392 +fully allocated size: 68795056128 +# 8k clusters +qemu-img: Extended L2 entries are only supported with cluster sizes of at least 16384 bytes +# 1024 TB +required size: 309285027840 +fully allocated size: 1126209191870464 +# 1025 TB +qemu-img: The image size is too large (try using a larger cluster size) +*** done diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index ec2b2302e5..d7b0e03737 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -284,6 +284,7 @@ 267 rw auto quick snapshot 268 rw auto quick 270 rw backing quick +271 rw auto 272 rw 273 backing quick 277 rw quick