Re: [Qemu-devel] [PATCH v2 00/15] SCSI s/g + SCSI migration + virtio-scsi

[Paolo Bonzini]

On 01/18/2012 08:39 AM, Hu Tao wrote:
> Hi Paolo,
>
> I found a problem that a virtio-scsi disk gets offline during mkfs.
> The scsi disk is of 100G or bigger, and the corresponding image
> is a freshly created qcow2 image. If the disk is small enough, or
> not freshly created, the problem doesn't appear.

Hi Hu,

I cannot reproduce this with a 100G qcow2 image (created with "qemu-img 
create scsi.qcow2 100G" just before launching the host), with a 
partition starting at sector 2048 and extending to the end of the disk. 
 mkfs (ext4) takes less than 1 minute and extends the qcow2 file to a 
little less than 2 gigs.

Can you send the partition table ("file -s /dev/sda" should be enough) 
and any output you get from the dmesg?

Paolo