Files
qemu/tests/qemu-iotests/071.out
T
Marc-André Lureau 3c0c7bfeba qemu-io: propagate errors through Error API instead of printf
Convert the qemu-io command infrastructure to use QEMU's Error API
(Error **errp) for error propagation instead of printing directly to
stdout/stderr via printf/fprintf.

The cfunc_t typedef, all ~35 command functions, the dispatcher chain
(command/init_check_command/qemuio_command), and helper functions
(parse_pattern, create_iovec, qemu_io_alloc_from_file) all gain an
Error **errp parameter. Async completion callbacks (aio_read_done,
aio_write_done, aio_discard_done) use error_report() since they have
no Error path back to the caller.

Update tests:
- error_report_err() prepends qemu-io: prefix
- copy-before-write: check the HMP return value, rather than stdio
- other tests: update to check JSON {"return": "Error: error text"}

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20260828-qemu-no-hmp-v5-21-9227de146347@redhat.com>
2026-08-29 12:07:44 +04:00

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QA output created by 071
=== Testing blkverify through filename ===
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
read 512/512 bytes at offset 0
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 512/512 bytes at offset 229376
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 512/512 bytes at offset 229376
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 512/512 bytes at offset 0
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
blkverify: read offset=0 bytes=512 contents mismatch at offset 0
=== Testing blkverify through file blockref ===
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
read 512/512 bytes at offset 0
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 512/512 bytes at offset 229376
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 512/512 bytes at offset 229376
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 512/512 bytes at offset 0
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
blkverify: read offset=0 bytes=512 contents mismatch at offset 0
=== Testing blkdebug through filename ===
qemu-io: read failed: Input/output error
=== Testing blkdebug through file blockref ===
qemu-io: read failed: Input/output error
=== Testing blkdebug on existing block device ===
Testing:
QMP_VERSION
{"return": {}}
{"return": {}}
{"return": {}}
{"return": "Error: read failed: Input/output error\r\n"}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
{"return": {}}
=== Testing blkverify on existing block device ===
Testing:
QMP_VERSION
{"return": {}}
{"return": {}}
{"return": {}}
blkverify: read offset=0 bytes=512 contents mismatch at offset 0
=== Testing blkverify on existing raw block device ===
Testing:
QMP_VERSION
{"return": {}}
{"return": {}}
{"return": {}}
blkverify: read offset=0 bytes=512 contents mismatch at offset 0
=== Testing blkdebug's set-state through QMP ===
Testing:
QMP_VERSION
{"return": {}}
{"return": {}}
{"return": {}}
read 512/512 bytes at offset 0
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{"return": ""}
wrote 512/512 bytes at offset 0
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{"return": ""}
{"return": "Error: read failed: Input/output error\r\n"}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
QEMU_PROG: Failed to flush the L2 table cache: Input/output error
QEMU_PROG: Failed to flush the refcount block cache: Input/output error
{"return": {}}
*** done