Re: [Qemu-devel] [PATCH] For AIO return -ENOSPC on short write

[Stefan Hajnoczi]

On Tue, Feb 22, 2011 at 3:11 PM, Kevin Wolf <address@hidden> wrote:
> Am 22.02.2011 16:02, schrieb Stefan Hajnoczi:
>> Why are we even allowing requests that extend beyond the end of the
>> device?  Is the LVM volume marked growable in the QEMU block layer?
>
> Might well be a qcow2 on LVM case that Jes was debugging.

Yes it is.  It doesn't explain it though.  The code involved here is
linux-aio.c and will be qcow2's bs->file.  That ought to be a
host_device and AFAIK that is not growable.  So I wanted to figure out
why we're even getting this far.  I expected the request to get
rejected in block.c when checking the range against the host_device.

Stefan