Re: [Qemu-devel] [PATCH] qemu-iotests: Test L1 table growth

[Kevin Wolf <kwolf@redhat.com>]

Christoph Hellwig schrieb:
> On Mon, Jul 06, 2009 at 03:59:27PM +0200, Kevin Wolf wrote:
>> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
>> ---
>> I don't really like about this one that it contains the monitor echo of our
>> commands from stdin. It contains lots of control characters and who knows if
>> the monitor won't change to do a more reasonable echo some time... However, we
>> need the monitor output to see if an error occured during savevm or loadvm. So,
>> I'm open for suggestions, but in case nobody has a better option, let's do it
>> this way.
> 
> It does fail for me because I get different escape sequences..
> 
> I suspect we'll just have to wait until Luiz' gets a proper
> machine-readable protocol for the monitor in and then use that one.  And
> pray that we'll stick with the text protocol instead of some rpc
> crap..

Ok, so using qemu in our tests is basically impossible because we can't
get any status messages. Bad news.

For this one we can handle it differently: I'll implement
bdrv_get/put_buffer in qemu-io, this should be more or less the same to
the image format drivers. We even get more control over the data
written, so I guess this is the better approach anyway.

Kevin