Re: [RESEND PATCH V10 00/15] iothread: Support tracking and querying IOThread holders

[Markus Armbruster <armbru@redhat.com>]

With this series applied:

    $ qemu-system-x86_64 -S -display none -chardev id=chr-mon0,backend=stdio -object monitor-hmp,id=mon0,chardev=chr-mon0 -chardev id=chr-mon1,backend=socket,path=test-hmp,server=on,wait=off -object monitor-qmp,id=mon1,chardev=chr-mon1
    QEMU 11.0.90 monitor - type 'help' for more information
    (qemu) q
    **
    ERROR:../iothread.c:99:iothread_unref: code should not be reached
    Bail out! ERROR:../iothread.c:99:iothread_unref: code should not be reached
    Aborted                    (core dumped) qemu-system-x86_64 -S -display none -chardev id=chr-mon0,backend=stdio -object monitor-hmp,id=mon0,chardev=chr-mon0 -chardev id=chr-mon1,backend=socket,path=test-hmp,server=on,wait=off -object monitor-qmp,id=mon1,chardev=chr-mon1

Stack backtrace:

    #0  0x00007f182873832c in __pthread_kill_implementation () at /lib64/libc.so.6
    #1  0x00007f18286de15e in raise () at /lib64/libc.so.6
    #2  0x00007f18286c56d0 in abort () at /lib64/libc.so.6
    #3  0x00007f182ac53482 in g_assertion_message[cold] ()
        at /lib64/libglib-2.0.so.0
    #4  0x00007f182acc1447 in g_assertion_message_expr ()
        at /lib64/libglib-2.0.so.0
    #5  0x000055ffa06cb50e in iothread_unref
        (iothread=0x55ffdb3bd740, holder=0x7ffc6152d8c0) at ../iothread.c:99
    #6  0x000055ffa06cc13a in iothread_put_aio_context
        (iothread=0x55ffdb3bd740, holder=0x7ffc6152d8c0) at ../iothread.c:444
    #7  0x000055ffa07d9af6 in monitor_cleanup () at ../monitor/monitor.c:679
    #8  0x000055ffa047ca8c in qemu_cleanup (status=0) at ../system/runstate.c:1046
    #9  0x000055ffa07fccb7 in qemu_default_main (opaque=0x0) at ../system/main.c:51
    #10 0x000055ffa07fcd64 in main (argc=12, argv=0x7ffc6152da98)
        at ../system/main.c:93