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Re: [Qemu-block] [Nbd] [PATCH v4 04/11] nbd: Improve server handling of

From: Alex Bligh
Subject: Re: [Qemu-block] [Nbd] [PATCH v4 04/11] nbd: Improve server handling of bogus commands
Date: Wed, 15 Jun 2016 09:52:21 +0100

> On 15 Jun 2016, at 09:03, Wouter Verhelst <address@hidden> wrote:
> On Wed, Jun 15, 2016 at 09:05:22AM +0200, Wouter Verhelst wrote:
>> There are more clients than the Linux and qemu ones, but I think it's
>> fair to say that those two are the most important ones. If they agree
>> that a read reply which errors should come without payload, then I think
>> we should update the standard to say that, too.
> I've just pushed a commit that changes the spec (and the implementation)
> so that if a server encounters a read error, it does not send a payload.
> In other words, the current behaviour of qemu is correct, is now
> documented to be correct, and should not be changed.

So what should those servers do (like 2 of mine) which don't buffer
the entire read, if they get an error having already sent some data?

Alex Bligh

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