Date: Tue, 13 Mar 2007 17:35:13 -0700 From: "Kip Macy" <kip.macy@gmail.com> To: "Miroslav Lachman" <000.fbsd@quip.cz> Cc: freebsd-stable@freebsd.org, Ivan Voras <ivoras@fer.hr> Subject: Re: Xen Dom0, are we making progress? Message-ID: <b1fa29170703131735n687f67fcs58bc52a4a4eb99ab@mail.gmail.com> In-Reply-To: <45F6E572.3070706@quip.cz> References: <ef10de9a0703121216k1035481bwc7df222a92b44400@mail.gmail.com> <ef10de9a0703121237q3de9f79o76a4358905357f10@mail.gmail.com> <et4aql$p7j$1@sea.gmane.org> <b1fa29170703121300v409bb3c8x457f2f329184d0e5@mail.gmail.com> <45F6E572.3070706@quip.cz>
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> I know you were working on Xen support in FreeBSD, but web about it > (http://www.fsmware.com/xenofreebsd/7.0/STATUS) has one year old info > (support planned in FreeBSD 6.1). So is there any progress, or Xen will > not be in any near future release? Basically Xen did not mature in the fashion that I anticipated. As far as I can tell it is really only good for server consolidation for large Linux distro vendors. You need to have what amounts to a private branch. The xen developers don't appear to understand the importance of interface versioning. They broke ABI compatibility going from 3.0.2 -> 3.0.3 (trivial to fix, but that is not the point). When last I worked on it, they had one branch that was in constant flux and another branch that only received minor bug fixes and was 18 months behind from a functionality standpoint (think 5.x / 4.x). There are numerous other logging / supportability issues that I think are only addressed by the major distros. As it stood 6 months ago, unless you understood the internals of various bits of the code, there was no way of diagnosing failures due to a misconfiguration. This is not to say that it isn't cool technology, but rather that isn't going to be useful for the things I wanted to use it for so my time is being directed elsewhere. If I ever have a need for EC2 I may look at it again. One of the guys who ported FreeBSD to the xbox has expressed interest - so something may yet come of it. I'm happy to provide technical support to an individual who is largely self-sustaining in working on the code. -Kip
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