What were you trying to do that didn't work?

When executing qom-set and then qom-get command, we got

qemu-kvm: ../qapi/qobject-output-visitor.c:95: void qobject_output_add_obj(QObjectOutputVisitor *, const char *, QObject *): Assertion `name' failed.

Please provide the package NVR for which the bug is seen:

qemu-kvm-9.1.0-9.el10
host/guest kernel-6.12.0-36.el10.aarch64+64k

How reproducible is this bug?:

80%

Steps to reproduce

Boot a guest

Query balloon for several times
{"execute": "query-balloon", "id": "LMchrPWq"} for several times
actual: 8589934592

Evict the balloon
{"execute": "balloon", "arguments":

{"value": 7324303360}

, "id": "a0QeGtCC"}

Query balloon again
{"execute": "query-balloon", "id": "LMchrPWq"}
actual: 7324303360

Enable polling
{"execute": "qom-set", "arguments":

{"path": "/machine/peripheral/balloon0", "property": "guest-stats-polling-interval", "value": 2}

, "id": "1WprSrlz"}
{"execute": "qom-get", "arguments":

{"path": "/machine/peripheral/balloon0", "property": "guest-stats"}

, "id": "BHoS8Pbb"}

Then
qemu-kvm: ../qapi/qobject-output-visitor.c:95: void qobject_output_add_obj(QObjectOutputVisitor *, const char *, QObject *): Assertion `name' failed.

Expected results

No crash

Actual results

qemu-kvm: ../qapi/qobject-output-visitor.c:95: void qobject_output_add_obj(QObjectOutputVisitor *, const char *, QObject *): Assertion `name' failed.