On Sun, 2012-09-02 at 12:46 +0200, 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? I have tried various kernel / ofed combinations.
I'm guessing that the NFSoRDMA code is broken for the case of O_DIRECT,
and has been for a while. Unfortunately the RDMA code gets little
testing these days.
Do all the other 'cache=' options work?
--
Trond Myklebust
Linux NFS client maintainer
NetApp
Trond.Myklebust@xxxxxxxxxx
www.netapp.com
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