From patchwork Tue Feb 1 14:42:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanna Czenczek X-Patchwork-Id: 12731923 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 617ADC433EF for ; Tue, 1 Feb 2022 15:43:12 +0000 (UTC) Received: from localhost ([::1]:42602 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nEvJH-0008V6-BZ for qemu-devel@archiver.kernel.org; Tue, 01 Feb 2022 10:43:11 -0500 Received: from eggs.gnu.org ([209.51.188.92]:35570) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nEuQY-0002b3-PO for qemu-devel@nongnu.org; Tue, 01 Feb 2022 09:46:54 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:36750) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nEuQT-00031K-Sd for qemu-devel@nongnu.org; Tue, 01 Feb 2022 09:46:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1643726635; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=cDg7ACz8VSWYIqRUrrFSCevtN6+Wto/rpYvUubzNvY8=; b=P78FDwPe6doRvhLPZ69mseD0zxAKtDtwV7eEz8VgSeGlurr/DFPWb/3VHLaNSPdsNi0aVz CXES1I3J9/Kyj8Zf1muJFKKntqIiNvXPcIpLmAKSUIvqfXcCYTbXsXbRrK2Cj5VGzcRkah zmuUax9P2idayAWljUjtVI93UY1oOgI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-471-GrfgoOG3N4mhXJR6syDfXA-1; Tue, 01 Feb 2022 09:43:54 -0500 X-MC-Unique: GrfgoOG3N4mhXJR6syDfXA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C4E7764083; Tue, 1 Feb 2022 14:43:52 +0000 (UTC) Received: from localhost (unknown [10.39.193.129]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 3B15F5DBB7; Tue, 1 Feb 2022 14:43:52 +0000 (UTC) From: Hanna Reitz To: qemu-block@nongnu.org Subject: [PULL 16/24] iotests: massive use _qcow2_dump_header Date: Tue, 1 Feb 2022 15:42:25 +0100 Message-Id: <20220201144233.617021-17-hreitz@redhat.com> In-Reply-To: <20220201144233.617021-1-hreitz@redhat.com> References: <20220201144233.617021-1-hreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=hreitz@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.129.124; envelope-from=hreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.081, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Peter Maydell , Hanna Reitz , Richard Henderson , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Vladimir Sementsov-Ogievskiy We are going to add filtering in _qcow2_dump_header and want all tests use it. The patch is generated by commands: cd tests/qemu-iotests sed -ie 's/$PYTHON qcow2.py "$TEST_IMG" dump-header\($\| \)/_qcow2_dump_header\1/' ??? tests/* (the difficulty is to avoid converting dump-header-exts) Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Max Reitz Message-Id: <20211223160144.1097696-15-vsementsov@virtuozzo.com> Signed-off-by: Hanna Reitz --- tests/qemu-iotests/031 | 6 +++--- tests/qemu-iotests/036 | 6 +++--- tests/qemu-iotests/039 | 20 ++++++++++---------- tests/qemu-iotests/060 | 20 ++++++++++---------- tests/qemu-iotests/061 | 36 ++++++++++++++++++------------------ tests/qemu-iotests/137 | 2 +- tests/qemu-iotests/287 | 8 ++++---- 7 files changed, 49 insertions(+), 49 deletions(-) diff --git a/tests/qemu-iotests/031 b/tests/qemu-iotests/031 index 58b57a0ef2..648112f796 100755 --- a/tests/qemu-iotests/031 +++ b/tests/qemu-iotests/031 @@ -58,21 +58,21 @@ for compat in "compat=0.10" "compat=1.1"; do echo _make_test_img -o $compat 64M $PYTHON qcow2.py "$TEST_IMG" add-header-ext 0x12345678 "This is a test header extension" - $PYTHON qcow2.py "$TEST_IMG" dump-header + _qcow2_dump_header _check_test_img echo echo === Rewrite header with no backing file === echo $QEMU_IMG rebase -u -b "" "$TEST_IMG" - $PYTHON qcow2.py "$TEST_IMG" dump-header + _qcow2_dump_header _check_test_img echo echo === Add a backing file and format === echo $QEMU_IMG rebase -u -b "/some/backing/file/path" -F host_device "$TEST_IMG" - $PYTHON qcow2.py "$TEST_IMG" dump-header + _qcow2_dump_header done # success, all done diff --git a/tests/qemu-iotests/036 b/tests/qemu-iotests/036 index 5e567012a8..f703605e44 100755 --- a/tests/qemu-iotests/036 +++ b/tests/qemu-iotests/036 @@ -58,7 +58,7 @@ $PYTHON qcow2.py "$TEST_IMG" set-feature-bit incompatible 63 # Without feature table $PYTHON qcow2.py "$TEST_IMG" del-header-ext 0x6803f857 -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep features +_qcow2_dump_header | grep features $PYTHON qcow2.py "$TEST_IMG" dump-header-exts _img_info @@ -107,7 +107,7 @@ echo === Create image with unknown autoclear feature bit === echo _make_test_img 64M $PYTHON qcow2.py "$TEST_IMG" set-feature-bit autoclear 63 -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep features +_qcow2_dump_header | grep features $PYTHON qcow2.py "$TEST_IMG" dump-header-exts echo @@ -115,7 +115,7 @@ echo === Repair image === echo _check_test_img -r all -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep features +_qcow2_dump_header | grep features $PYTHON qcow2.py "$TEST_IMG" dump-header-exts # success, all done diff --git a/tests/qemu-iotests/039 b/tests/qemu-iotests/039 index 12b2c7fa7b..8e783a8380 100755 --- a/tests/qemu-iotests/039 +++ b/tests/qemu-iotests/039 @@ -59,7 +59,7 @@ _make_test_img -o "compat=1.1,lazy_refcounts=on" $size $QEMU_IO -c "write -P 0x5a 0 512" "$TEST_IMG" | _filter_qemu_io # The dirty bit must not be set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features _check_test_img echo @@ -73,7 +73,7 @@ $QEMU_IO -c "write -P 0x5a 0 512" \ | _filter_qemu_io # The dirty bit must be set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features _check_test_img echo @@ -82,7 +82,7 @@ echo "== Read-only access must still work ==" $QEMU_IO -r -c "read -P 0x5a 0 512" "$TEST_IMG" | _filter_qemu_io # The dirty bit must be set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features echo echo "== Repairing the image file must succeed ==" @@ -90,7 +90,7 @@ echo "== Repairing the image file must succeed ==" _check_test_img -r all # The dirty bit must not be set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features echo echo "== Data should still be accessible after repair ==" @@ -108,12 +108,12 @@ $QEMU_IO -c "write -P 0x5a 0 512" \ | _filter_qemu_io # The dirty bit must be set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features $QEMU_IO -c "write 0 512" "$TEST_IMG" | _filter_qemu_io # The dirty bit must not be set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features echo echo "== Creating an image file with lazy_refcounts=off ==" @@ -126,7 +126,7 @@ $QEMU_IO -c "write -P 0x5a 0 512" \ | _filter_qemu_io # The dirty bit must not be set since lazy_refcounts=off -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features _check_test_img echo @@ -141,7 +141,7 @@ $QEMU_IO -c "write 0 512" "$TEST_IMG" | _filter_qemu_io $QEMU_IMG commit "$TEST_IMG" # The dirty bit must not be set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features $PYTHON qcow2.py "$TEST_IMG".base dump-header | grep incompatible_features _check_test_img @@ -159,7 +159,7 @@ $QEMU_IO -c "reopen -o lazy-refcounts=on" \ | _filter_qemu_io # The dirty bit must be set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features _check_test_img _make_test_img -o "compat=1.1,lazy_refcounts=on" $size @@ -171,7 +171,7 @@ $QEMU_IO -c "reopen -o lazy-refcounts=off" \ | _filter_qemu_io # The dirty bit must not be set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features _check_test_img diff --git a/tests/qemu-iotests/060 b/tests/qemu-iotests/060 index db26c6b246..d1e3204d4e 100755 --- a/tests/qemu-iotests/060 +++ b/tests/qemu-iotests/060 @@ -80,13 +80,13 @@ poke_file "$TEST_IMG" "$l1_offset" "\x80\x00\x00\x00\x00\x03\x00\x00" _check_test_img # The corrupt bit should not be set anyway -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features # Try to write something, thereby forcing the corrupt bit to be set $QEMU_IO -c "$OPEN_RW" -c "write -P 0x2a 0 512" | _filter_qemu_io # The corrupt bit must now be set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features # This information should be available through qemu-img info _img_info --format-specific @@ -114,19 +114,19 @@ poke_file "$TEST_IMG" "$(($rb_offset+8))" "\x00\x01" # Redirect new data cluster onto refcount block poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x02\x00\x00" _check_test_img -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features $QEMU_IO -c "$OPEN_RW" -c "write -P 0x2a 0 512" | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features # Try to fix it _check_test_img -r all # The corrupt bit should be cleared -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features # Look if it's really really fixed $QEMU_IO -c "$OPEN_RW" -c "write -P 0x2a 0 512" | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features echo echo "=== Testing cluster data reference into inactive L2 table ===" @@ -139,13 +139,13 @@ $QEMU_IO -c "$OPEN_RW" -c "write -P 2 0 512" | _filter_qemu_io poke_file "$TEST_IMG" "$l2_offset_after_snapshot" \ "\x80\x00\x00\x00\x00\x04\x00\x00" _check_test_img -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features $QEMU_IO -c "$OPEN_RW" -c "write -P 3 0 512" | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features _check_test_img -r all -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features $QEMU_IO -c "$OPEN_RW" -c "write -P 4 0 512" | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features # Check data $QEMU_IO -c "$OPEN_RO" -c "read -P 4 0 512" | _filter_qemu_io diff --git a/tests/qemu-iotests/061 b/tests/qemu-iotests/061 index 9507c223bd..70edf1a163 100755 --- a/tests/qemu-iotests/061 +++ b/tests/qemu-iotests/061 @@ -55,9 +55,9 @@ echo "=== Testing version downgrade with zero expansion ===" echo _make_test_img -o "compat=1.1,lazy_refcounts=on" 64M $QEMU_IO -c "write -z 0 128k" "$TEST_IMG" | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header $QEMU_IMG amend -o "compat=0.10" "$TEST_IMG" -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header $QEMU_IO -c "read -P 0 0 128k" "$TEST_IMG" | _filter_qemu_io _check_test_img @@ -68,10 +68,10 @@ _make_test_img -o "compat=1.1,lazy_refcounts=on" 64M $QEMU_IO -c "write -z 0 128k" "$TEST_IMG" | _filter_qemu_io $QEMU_IO -c "write -z 32M 128k" "$TEST_IMG" | _filter_qemu_io $QEMU_IO -c map "$TEST_IMG" | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header $QEMU_IMG amend -o "compat=0.10" --image-opts \ driver=qcow2,file.filename=$TEST_IMG,l2-cache-entry-size=4096 -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header $QEMU_IO -c "read -P 0 0 128k" "$TEST_IMG" | _filter_qemu_io $QEMU_IO -c "read -P 0 32M 128k" "$TEST_IMG" | _filter_qemu_io $QEMU_IO -c map "$TEST_IMG" | _filter_qemu_io @@ -84,9 +84,9 @@ _make_test_img -o "compat=1.1,lazy_refcounts=on" 64M _NO_VALGRIND \ $QEMU_IO -c "write -P 0x2a 0 128k" -c flush \ -c "sigraise $(kill -l KILL)" "$TEST_IMG" 2>&1 | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header $QEMU_IMG amend -o "compat=0.10" "$TEST_IMG" -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header $QEMU_IO -c "read -P 0x2a 0 128k" "$TEST_IMG" | _filter_qemu_io _check_test_img @@ -96,9 +96,9 @@ echo _make_test_img -o "compat=1.1" 64M $PYTHON qcow2.py "$TEST_IMG" set-feature-bit compatible 42 $PYTHON qcow2.py "$TEST_IMG" set-feature-bit autoclear 42 -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header $QEMU_IMG amend -o "compat=0.10" "$TEST_IMG" -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header _check_test_img echo @@ -106,9 +106,9 @@ echo "=== Testing version upgrade and resize ===" echo _make_test_img -o "compat=0.10" 64M $QEMU_IO -c "write -P 0x2a 42M 64k" "$TEST_IMG" | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header $QEMU_IMG amend -o "compat=1.1,lazy_refcounts=on,size=128M" "$TEST_IMG" -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header $QEMU_IO -c "read -P 0x2a 42M 64k" "$TEST_IMG" | _filter_qemu_io _check_test_img @@ -120,29 +120,29 @@ $QEMU_IO -c "write -P 0x2a 24M 64k" "$TEST_IMG" | _filter_qemu_io $QEMU_IMG snapshot -c foo "$TEST_IMG" $QEMU_IMG resize "$TEST_IMG" 64M && echo "unexpected pass" -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' +_qcow2_dump_header | grep '^\(version\|size\|nb_snap\)' $QEMU_IMG amend -o "compat=1.1,size=128M" "$TEST_IMG" || echo "unexpected fail" -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' +_qcow2_dump_header | grep '^\(version\|size\|nb_snap\)' $QEMU_IMG snapshot -c bar "$TEST_IMG" $QEMU_IMG resize --shrink "$TEST_IMG" 64M || echo "unexpected fail" -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' +_qcow2_dump_header | grep '^\(version\|size\|nb_snap\)' $QEMU_IMG amend -o "compat=0.10,size=32M" "$TEST_IMG" && echo "unexpected pass" -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' +_qcow2_dump_header | grep '^\(version\|size\|nb_snap\)' $QEMU_IMG snapshot -a bar "$TEST_IMG" || echo "unexpected fail" -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' +_qcow2_dump_header | grep '^\(version\|size\|nb_snap\)' $QEMU_IMG snapshot -d bar "$TEST_IMG" $QEMU_IMG amend -o "compat=0.10,size=32M" "$TEST_IMG" || echo "unexpected fail" -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' +_qcow2_dump_header | grep '^\(version\|size\|nb_snap\)' _check_test_img @@ -154,9 +154,9 @@ _make_test_img -o "compat=1.1,lazy_refcounts=on" 64M _NO_VALGRIND \ $QEMU_IO -c "write -P 0x2a 0 128k" -c flush \ -c "sigraise $(kill -l KILL)" "$TEST_IMG" 2>&1 | _filter_qemu_io -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header $QEMU_IMG amend -o "lazy_refcounts=off" "$TEST_IMG" -$PYTHON qcow2.py "$TEST_IMG" dump-header +_qcow2_dump_header $QEMU_IO -c "read -P 0x2a 0 128k" "$TEST_IMG" | _filter_qemu_io _check_test_img diff --git a/tests/qemu-iotests/137 b/tests/qemu-iotests/137 index 4680d5df3d..52ee135184 100755 --- a/tests/qemu-iotests/137 +++ b/tests/qemu-iotests/137 @@ -140,7 +140,7 @@ $QEMU_IO \ # The dirty bit must not be set # (Filter the external data file bit) -if $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features \ +if _qcow2_dump_header | grep incompatible_features \ | grep -q '\<0\>' then echo 'ERROR: Dirty bit set' diff --git a/tests/qemu-iotests/287 b/tests/qemu-iotests/287 index 2d5334e8bf..5427ad5456 100755 --- a/tests/qemu-iotests/287 +++ b/tests/qemu-iotests/287 @@ -61,13 +61,13 @@ echo echo "=== Testing compression type incompatible bit setting for zlib ===" echo _make_test_img -o compression_type=zlib 64M -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features echo echo "=== Testing compression type incompatible bit setting for zstd ===" echo _make_test_img -o compression_type=zstd 64M -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features echo echo "=== Testing zlib with incompatible bit set ===" @@ -75,7 +75,7 @@ echo _make_test_img -o compression_type=zlib 64M $PYTHON qcow2.py "$TEST_IMG" set-feature-bit incompatible 3 # to make sure the bit was actually set -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features if $QEMU_IMG info "$TEST_IMG" >/dev/null 2>&1 ; then echo "Error: The image opened successfully. The image must not be opened." @@ -87,7 +87,7 @@ echo _make_test_img -o compression_type=zstd 64M $PYTHON qcow2.py "$TEST_IMG" set-header incompatible_features 0 # to make sure the bit was actually unset -$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features +_qcow2_dump_header | grep incompatible_features if $QEMU_IMG info "$TEST_IMG" >/dev/null 2>&1 ; then echo "Error: The image opened successfully. The image must not be opened."