Hi asias, I'm testing vhost-blk,for comparimg the performance with virtio-blk. I got the kernel patch from this mail: https://lkml.org/lkml/2012/12/1/174 And I got the userspace code for qemu from this git: https://github.com/asias/qemu/tree/blk.vhost-blk; Used vhost-blk device as non-bootable device,the configuration is : Qemu-kvm -enable-kvm -name win7 -M pc-0.15 -m 1024 -smp 2 -boot c -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/home/fedora188.img,if=virtio,index=0,format=raw -drive file=/home/fedora18.img,if=virtio,index=1,format=raw,id=hd,vhost=on -monitor stdio -vga qxl -vnc :1 -device usb-tablet,id=input0
On fedora17 host,I used kernel 3.6.3 for building vhos_blk module,but the vm will hang when vm starting. 1 Is there any new patch for kernel 3.8 3.10? 2 which version of the kernel is suitable for the current kernel patch? Could you give me some advise to debug this problem ? I can provide more information if need. Or could you give me some advise to run vhost-blk,such as RHEL version,kernel version and so on? Thanks Baiqing.