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[76.251.165.188]) by smtp.gmail.com with ESMTPSA id 68sm771492otw.3.2020.09.03.14.01.19 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 03 Sep 2020 14:01:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=E70J8HSNM80vAgu3Ao3Q8OgYv6xE4YCHtBCrJzU2WUA=; b=ajidGXnSWBaH/GwIEMI1Hm9V2A2yedWl6ac4SRt4Lp3/DDRy3or7BijxgKTel4Qz8m F8LYry1WtlSkgOBbzXbc+pV/2iUa3Zgra6xbAEWbdNz2O71IPC1VqZrahbjdnPKtzgzQ u7l8D5mmjWRTdWtv6AvXZHDE5EruJJ04JFWypV8Hle5HaKtevvQG+y3ElJBwKTTBz2CF d6BCrzQRDQIEyMtqGcvfFMmf0K8lKTLMi6/70XEMYyQ0BpS5GeLPsnjSlwJ69PBM8a+G JqWaMLjF8CzwWOCQN/JMWzvGEw+BgE4rtBrAU7RWUwEYfmhaDFOsHRgVDAJedVXrWZiQ RkQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=E70J8HSNM80vAgu3Ao3Q8OgYv6xE4YCHtBCrJzU2WUA=; b=fEAe0V0jbrFR/KL8ogcV3CWdjnomSzmRBYJ7f4Bnrc6rSMq2TD+NWY9Y/Ex7/v98ZK I7uLB6WrZVXkVSGf2rA+bZVDuOwEtGJv+KALU/Vjxi0TLPhdQyRa4igCd3oIXtZVh263 DYxswEKLbaigZK5o+X0hE8ZlHmmMX1MeObMDdqrnEoAPTKyKBYZui2UzuTSlw4kBO6Mu ftJVCAgDCMA9bE00b1xNXzHMybypvQFhoAnmzrERg/KOw3iqzWsgMa+CYdtMG7INGta7 LYRiuOWaZjBmg+A8E9GTRUka0QKPBR72KJbBcYB0U4yKTGrFdvTqqf7MCLWyiT/cWnfe Cdew== X-Gm-Message-State: AOAM532cb0DcJF5HBF6nE2OlfYHGAn7qME8Wk/ZGpWKhjxVaN/RuIVz+ akWBPe/pC1xZKbh+drynvwd7WbeeVUArVA== X-Google-Smtp-Source: ABdhPJzXySGpZPVLjP7vOorjlMkpNhGQPAJfx5GEt8rwqFzqZ+hUAwqIIr2Oe8jg0FFtKSqjOzjtLw== X-Received: by 2002:a9d:7618:: with SMTP id k24mr3225209otl.34.1599166881283; Thu, 03 Sep 2020 14:01:21 -0700 (PDT) From: Michael Roth To: qemu-devel@nongnu.org Subject: [PATCH 73/77] iotests/028: Add test for cross-base-EOF reads Date: Thu, 3 Sep 2020 15:59:31 -0500 Message-Id: <20200903205935.27832-74-mdroth@linux.vnet.ibm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200903205935.27832-1-mdroth@linux.vnet.ibm.com> References: <20200903205935.27832-1-mdroth@linux.vnet.ibm.com> Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::332; envelope-from=flukshun@gmail.com; helo=mail-ot1-x332.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action 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: qemu-stable@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Max Reitz Signed-off-by: Max Reitz Message-Id: <20200728120806.265916-3-mreitz@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy Tested-by: Vladimir Sementsov-Ogievskiy Tested-by: Claudio Fontana (cherry picked from commit ae159450e161b3e1e2c5b815d19632abbbbcd1a1) Signed-off-by: Michael Roth --- tests/qemu-iotests/028 | 19 +++++++++++++++++++ tests/qemu-iotests/028.out | 11 +++++++++++ 2 files changed, 30 insertions(+) diff --git a/tests/qemu-iotests/028 b/tests/qemu-iotests/028 index 797dae5350..1e52986b74 100755 --- a/tests/qemu-iotests/028 +++ b/tests/qemu-iotests/028 @@ -142,6 +142,25 @@ TEST_IMG=3D"${TEST_IMG}.copy" io_zero readv $(( offset= + 32 * 1024 )) 512 1024 32 =20 _check_test_img =20 +echo +echo '=3D=3D=3D Reading across backing EOF in one operation =3D=3D=3D' +echo + +# Use a cluster boundary as the base end here +base_size=3D$((3 * 1024 * 1024 * 1024)) + +TEST_IMG=3D"$TEST_IMG.base" _make_test_img $base_size +_make_test_img -b "$TEST_IMG.base" -F $IMGFMT $image_size + +# Write 16 times 42 at the end of the base image +$QEMU_IO -c "write -P 42 $((base_size - 16)) 16" "$TEST_IMG.base" \ + | _filter_qemu_io + +# Read 32 bytes across the base EOF from the top; +# should be 16 times 0x2a, then 16 times 0x00 +$QEMU_IO -c "read -v $((base_size - 16)) 32" "$TEST_IMG" \ + | _filter_qemu_io + # success, all done echo "*** done" rm -f $seq.full diff --git a/tests/qemu-iotests/028.out b/tests/qemu-iotests/028.out index 37aed84436..51ae06d38f 100644 --- a/tests/qemu-iotests/028.out +++ b/tests/qemu-iotests/028.out @@ -730,4 +730,15 @@ read 512/512 bytes at offset 3221257728 read 512/512 bytes at offset 3221258752 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) No errors were found on the image. + +=3D=3D=3D Reading across backing EOF in one operation =3D=3D=3D + +Formatting 'TEST_DIR/t.IMGFMT.base', fmt=3DIMGFMT size=3D3221225472 +Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D4294968832 backing_fil= e=3DTEST_DIR/t.IMGFMT.base backing_fmt=3DIMGFMT +wrote 16/16 bytes at offset 3221225456 +16 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +bffffff0: 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a ..............= .. +c0000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ..............= .. +read 32/32 bytes at offset 3221225456 +32 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) *** done --=20 2.17.1