Re: [Xen-devel] xenbus and the message of doom

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Konrad Rzeszutek Wilk writes ("Re: [Xen-devel] xenbus and the message of doom"):
> Sorry Olaf, have to revert that commit.

I agree.  When we introduced it we weren't aware that most existing
implementations of xenstored simply ignore unknown commands rather
than replying with an error.  If we had known this we would not have
approved Olaf's patch.

That they ignore unknown commands is of course a bug but expecting
everyone to update is no good.  Really the best approach would be some
kind of discovery mechanism.

Maybe we should have a special path @xenstore/fail_unknown_commands
which you could read, or something.  But this time we should try it
against old implementations.

Ian.

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