On 08/31/2012 08:05 PM, Andrew Holway wrote: > Hi, > > I am trying to host KVM machines on an NFSoRDMA mount. > > This works: > > -drive file=/mnt/vm001.img,if=none,id=drive-virtio-disk0,format=raw -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0 > > This Doesn't! > > -drive file=/mnt/vm001.img,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=2 > > Any ideas why this could be? Please try dd bs=512 if=/mnt/vm001.img of=/mnt/x1 dd bs=512 if=/mnt/vm001.img of=/mnt/x2 dd bs=4096 if=/mnt/vm001.img of=/mnt/y1 iflag=direct oflag=direct dd bs=4096 if=/mnt/vm001.img of=/mnt/y2 iflag=direct oflag=direct and report which (if any) of the output files (x1, x2, y1, y2) are corrupted, by comparing them against the original. This will tell us whether O_DIRECT is broken, or 512 byte block size, or neither. -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html