[Libguestfs] guestfish1.7.17 does not support qemu-kvm1.0.93?

Hi,all,i build qemu-kvm1.0.93 from source code on centos6.2 , # qemu-system-x86_64 --version QEMU emulator version 1.0.93 (qemu-kvm-devel), Copyright (c) 2003-2008 Fabrice Bellard and the guestfish's version: # guestfish --version guestfish 1.7.17 but when i use the guestfish command to upload a file to a vm,it does not work , # guestfish --rw -i -d centosvm upload /test/ifcfg-eth0_centos /etc/sysconfig/network-scripts/ifcfg-eth0 the command doesnot return any error massage and keep running till i press crtl+c. i build qemu-kvm like bellow: ./configure --target-list=x86_64-softmmu \ --prefix=/usr/local/qemu-kvm \ --sysconfdir=/etc \ --audio-drv-list=alsa \ --audio-card-list=ac97,es1370 \ --disable-strip \ --disable-xen \ --enable-virtfs \ --block-drv-whitelist=qcow2,raw,file,host_device,host_cdrom,qed \ --disable-debug-tcg \ --disable-sparse \ --enable-werror \ --disable-sdl \ --disable-curses \ --disable-curl \ --enable-vnc \ --enable-vnc-tls \ --enable-vnc-sasl \ --disable-brlapi \ --disable-bluez \ --disable-docs \ --disable-vde \ --enable-linux-aio \ --enable-kvm \ --enable-spice \ --enable-kvm-device-assignment \ --enable-trace-backend=dtrace \ --enable-smartcard \ --disable-smartcard-nss \ --disable-guest-agent could anyone give some help?thanks.