tap downscript is not executed when exiting qemu through "quit" monitor command

When you tell qemu to shutdown using the "quit" monitor command, the downscript of the tap interface is not executed.


To reproduce:


Create the test script /tmp/qemu-ifdown-test.sh :

==
#!/bin/bash

touch /tmp/is_this_working
==

Run:

==
# chmod +x /tmp/qemu-ifdown-test.sh
# qemu-system-x86_64 -daemonize -net nic -net tap,script=/etc/qemu-ifup,downscript=/tmp/qemu-ifdown-test.sh -monitor unix:/tmp/monitor.socket,nowait,server
VNC server running on `127.0.0.1:5900'
# nc -U /tmp/monitor.socket 
QEMU 0.12.5 monitor - type 'help' for more information
(qemu) quit
quit
# ls /tmp/is*
ls: cannot access /tmp/is*: No such file or directory

==

If I quit qemu by sending a SIGTERM instead of using the "quit" command, the downscript does get executed:

==
# qemu-system-x86_64 -daemonize -net nic -net tap,script=/etc/qemu-ifup,downscript=/tmp/qemu-ifdown-test.sh -monitor unix:/tmp/monitor.socket,nowait,server
VNC server running on `127.0.0.1:5900'
# killall qemu-system-x86_64
# ls /tmp/is*
/tmp/is_this_working
==

Issue occurs with both 0.12.3 and 0.12.5