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Re: [Qemu-devel] [PATCH v3 00/16] net: hub-based networking

From: Anthony Liguori
Subject: Re: [Qemu-devel] [PATCH v3 00/16] net: hub-based networking
Date: Mon, 04 Jun 2012 12:56:41 +0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120329 Thunderbird/11.0.1

On 05/25/2012 08:53 PM, Luiz Capitulino wrote:
On Fri, 25 May 2012 13:01:37 +0100
Stefan Hajnoczi<address@hidden>  wrote:

I agree it would be nice to drop entirely but I don't feel happy doing
that to users who might have QEMU buried in scripts somewhere.  One
day they upgrade packages and suddenly their stuff doesn't work

This is very similar to kqemu and I don't think we regret having dropped it.

You couldn't imagine the number of complaints I got from users about dropping kqemu. It caused me considerable pain. Complaints ranged from down right hostile (I had to involve the Launchpad admins at one point because of a particular user) to entirely sympathetic.

kqemu wasn't just a maintenance burden, it was preventing large guest memory support in KVM guests. There was no simple way around it without breaking kqemu ABI and making significant changes to the kqemu module.

Dropping features is only something that should be approached lightly and certainly not something that should be done just because you don't like a particular bit of code.


Anthony Liguori

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