[Qemu-devel] qemu 2.4rc2 : iothread hanging vm (2.4rc1 works fine)

[Alexandre DERUMIER]

Hi,

since qemu 2.4rc2, when I'm using iothreads, the vm is hanging, qmp queries are 
not working, vnc not working. (qemu process don't crash).

qemu 2.4 rc1 works fine. (don't have bisect it yet)


qemu command line:

qemu -chardev socket,id=qmp,path=/var/run/qemu-server/150.qmp,server,nowait 
-mon chardev=qmp,mode=control -vnc 
unix:/var/run/qemu-server/150.vnc,x509,password -pidfile 
/var/run/qemu-server/150.pid -daemonize -smbios 
type=1,manufacturer=dell,version=1,product=3,uuid=f0686bfb-50b8-4d31-a4cb-b1cf60eeb648
 -name debianok -smp 2,sockets=2,cores=1,maxcpus=2 -nodefaults -boot 
menu=on,strict=on,reboot-timeout=1000 -vga cirrus -cpu 
kvm64,+lahf_lm,+x2apic,+sep,+kvm_pv_unhalt,+kvm_pv_eoi,enforce -m 8192 -k fr 
-object iothread,id=iothread-virtio0 -device 
pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f -device 
pci-bridge,id=pci.1,chassis_nr=1,bus=pci.0,addr=0x1e -device 
piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2 -device 
usb-tablet,id=tablet,bus=uhci.0,port=1 -device 
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 -iscsi 
initiator-name=iqn.1993-08.org.debian.01.24b0d01a62a3 -drive 
file=/var/lib/vz/images/150/vm-150-disk-1.raw,if=none,id=drive-virtio0,cache=none,format=raw,aio=native,detect-zeroes=on
 -device 
virtio-blk-pci,drive=drive-virtio0,id=virtio0,bus=pci.0,addr=0xa,iothread=iothread-virtio0,bootindex=100

Regards,

Alexandre