[Qemu-devel] simple qmp core dump

[Eric Blake <eblake@redhat.com>]

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Just noticed this core dump (I was actually trying to exceed the 1024
hard-baked limit in qmp-input-visitor.c which tries to set an Error
object, but it looks like that limit was unreachable due to this earlier
assertion):

$ printf '{"execute":"qmp_capabilities","id":%1025s' " " | tr ' ' { |
    ./x86_64-softmmu/qemu-system-x86_64 -nodefaults -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 50, "minor": 4, "major": 2},
"package": ""}, "capabilities": []}}
main-loop: WARNING: I/O thread spun for 1000 iterations
**
ERROR:qobject/json-parser.c:294:parser_context_peek_token: assertion
failed: (ctxt->tokens.pos < ctxt->tokens.count)
Aborted (core dumped)

I don't know the best way to deal with a client that abuses QMP
protocol, but it would at least be nice to not abort.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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