From 36dbb9edadf3cd22fd6f0da96cf293da35b0234c Mon Sep 17 00:00:00 2001 From: Max Reitz Date: Sat, 13 Jun 2015 16:22:05 +0200 Subject: [PATCH 11/42] iotests: Add more tests for qcow2 corruption Message-id: <1434212556-3927-12-git-send-email-mreitz@redhat.com> Patchwork-id: 66030 O-Subject: [RHEL-7.2 qemu-kvm PATCH 11/42] iotests: Add more tests for qcow2 corruption Bugzilla: 1129893 RH-Acked-by: Jeffrey Cody RH-Acked-by: Fam Zheng RH-Acked-by: Stefan Hajnoczi BZ: 1129893 Add tests for unaligned L1/L2/reftable entries and non-fatal corruption reports. Signed-off-by: Max Reitz Reviewed-by: Eric Blake Message-id: 1409926039-29044-6-git-send-email-mreitz@redhat.com Signed-off-by: Stefan Hajnoczi (cherry picked from commit 5b0ed2be883238f52567ba2635ea38f34e8eb90d) Signed-off-by: Max Reitz Signed-off-by: Miroslav Rezanina --- tests/qemu-iotests/060 | 56 ++++++++++++++++++++++++++++++++++++++++++++-- tests/qemu-iotests/060.out | 51 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 105 insertions(+), 2 deletions(-) diff --git a/tests/qemu-iotests/060 b/tests/qemu-iotests/060 index 5180e23..e1187a3 100644 --- a/tests/qemu-iotests/060 +++ b/tests/qemu-iotests/060 @@ -169,9 +169,61 @@ echo "=== Testing unallocated image header ===" echo _make_test_img 64M # Create L1/L2 -$QEMU_IO -c "$OPEN_RW" -c "write 0 64k" | _filter_qemu_io +$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io poke_file "$TEST_IMG" "$rb_offset" "\x00\x00" -$QEMU_IO -c "$OPEN_RW" -c "write 64k 64k" | _filter_qemu_io +$QEMU_IO -c "write 64k 64k" "$TEST_IMG" | _filter_qemu_io + +echo +echo "=== Testing unaligned L1 entry ===" +echo +_make_test_img 64M +$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io +# This will be masked with ~(512 - 1) = ~0x1ff, so whether the lower 9 bits are +# aligned or not does not matter +poke_file "$TEST_IMG" "$l1_offset" "\x80\x00\x00\x00\x00\x04\x2a\x00" +$QEMU_IO -c "read 0 64k" "$TEST_IMG" | _filter_qemu_io + +echo +echo "=== Testing unaligned L2 entry ===" +echo +_make_test_img 64M +$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io +poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00" +$QEMU_IO -c "read 0 64k" "$TEST_IMG" | _filter_qemu_io + +echo +echo "=== Testing unaligned reftable entry ===" +echo +_make_test_img 64M +poke_file "$TEST_IMG" "$rt_offset" "\x00\x00\x00\x00\x00\x02\x2a\x00" +$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io + +echo +echo "=== Testing non-fatal corruption on freeing ===" +echo +_make_test_img 64M +$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io +poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00" +$QEMU_IO -c "discard 0 64k" "$TEST_IMG" | _filter_qemu_io + +echo +echo "=== Testing read-only corruption report ===" +echo +_make_test_img 64M +$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io +poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00" +# Should only emit a single error message +$QEMU_IO -c "$OPEN_RO" -c "read 0 64k" -c "read 0 64k" | _filter_qemu_io + +echo +echo "=== Testing non-fatal and then fatal corruption report ===" +echo +_make_test_img 64M +$QEMU_IO -c "write 0 128k" "$TEST_IMG" | _filter_qemu_io +poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00" +poke_file "$TEST_IMG" "$(($l2_offset+8))" "\x80\x00\x00\x00\x00\x06\x2a\x00" +# Should emit two error messages +$QEMU_IO -c "discard 0 64k" -c "read 64k 64k" "$TEST_IMG" | _filter_qemu_io # success, all done echo "*** done" diff --git a/tests/qemu-iotests/060.out b/tests/qemu-iotests/060.out index 30806da..4f0c6d0 100644 --- a/tests/qemu-iotests/060.out +++ b/tests/qemu-iotests/060.out @@ -101,4 +101,55 @@ wrote 65536/65536 bytes at offset 0 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with qcow2_header); further corruption events will be suppressed write failed: Input/output error + +=== Testing unaligned L1 entry === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +qcow2: Marking image as corrupt: L2 table offset 0x42a00 unaligned (L1 index: 0); further corruption events will be suppressed +read failed: Input/output error + +=== Testing unaligned L2 entry === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +qcow2: Marking image as corrupt: Data cluster offset 0x52a00 unaligned (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed +read failed: Input/output error + +=== Testing unaligned reftable entry === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 +qcow2: Marking image as corrupt: Refblock offset 0x22a00 unaligned (reftable index: 0); further corruption events will be suppressed +write failed: Input/output error + +=== Testing non-fatal corruption on freeing === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +qcow2: Image is corrupt: Cannot free unaligned cluster 0x52a00; further non-fatal corruption events will be suppressed +discard 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +=== Testing read-only corruption report === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +qcow2: Image is corrupt: Data cluster offset 0x52a00 unaligned (L2 offset: 0x40000, L2 index: 0); further non-fatal corruption events will be suppressed +read failed: Input/output error +read failed: Input/output error + +=== Testing non-fatal and then fatal corruption report === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 +wrote 131072/131072 bytes at offset 0 +128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +qcow2: Image is corrupt: Cannot free unaligned cluster 0x52a00; further non-fatal corruption events will be suppressed +qcow2: Marking image as corrupt: Data cluster offset 0x62a00 unaligned (L2 offset: 0x40000, L2 index: 0x1); further corruption events will be suppressed +discard 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read failed: Input/output error *** done -- 1.8.3.1