[Qemu-discuss] I/O Thread spun for 1000 iterations

[root]

Hey Community,

i run a OS X Guest via Qemu on my machine.

My problem is that at boot i get in about 8/10 boots a warning:

main-loop: WARNING: I/O thread spun for 1000 iterations


When the machine boots in the few cases it doesn't produce that error 
everything works perfectly fine even under full load etc.

i am running emu 2.4.50 with the following launch script:

qemu-system-x86_64 -enable-kvm -M q35 -m 14096 -cpu 
core2duo,hv_time,hv_relaxed,hv_vapic,hv_spinlocks=0x1fff \
-smp 8,sockets=2,cores=2,threads=2 \
-device 
ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 
\
-device 
vfio-pci,host=04:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on,romfile=/vm/9600GT.rom 
\
-boot d \
-drive file=/vm/Clover.iso,if=ide,index=5,media=cdrom \
-drive if=ide,media=disk,cache=none,file=/vm/osxII.img \
-netdev user,id=net0 \
-device e1000-82545em,netdev=net0,mac=DE:AD:BE:EF:AD:3c \
-vga none \
-usb -device usb-host,hostbus=$(lsusb | grep 05ac:0221 | cut -f 2 -d " 
"),hostaddr=$(lsusb | grep 05ac:0221 | cut -f 4 -d " " | cut -c 3-3) \
-usb -device usb-host,hostbus=$(lsusb | grep 0a12:0001 | cut -f 2 -d " 
"),hostaddr=$(lsusb | grep 0a12:0001 | cut -f 4 -d " " | cut -c 3-3) \
-monitor stdio -vnc :2


Hope you have an idea to fix this behavior.

Best regards,

Arne