Re: [PATCH] qemucapabilitiestest: Bump qemu-5.1 capabilities for x86_64

On Wed, Jun 03, 2020 at 11:29:36AM +0200, Peter Krempa wrote: > On Wed, Jun 03, 2020 at 11:11:08 +0200, Michal Privoznik wrote: > > On 6/3/20 10:40 AM, Peter Krempa wrote: > > > On Wed, Jun 03, 2020 at 10:27:57 +0200, Michal Privoznik wrote: > > > > On 6/3/20 9:31 AM, Peter Krempa wrote:

> Well. They are built on fedora, but certainly not taken from fedora. > It's built from git. > > > Maybe we can document configure arguments for QEMU so that it is > > reproducible. > > While I agree that we should do that to take one of the moving parts out > of the equation we still can't do anything about the machine dependance > of the output. Specifically it contains all cpu flags so it really can't > be re-generated reproducibly on a box with even a slightly different > cpu. > > Ideally we'd build it with the fedora spec-file, but I got lazy and I'm > usually just re-running configure from my history in this case. > > My only idea how to provide stable output is to create a job on a box > which will periodically re-build qemu and fetch the capabilities and > publish them somewhere so that others could grab those and refresh the > caps themselves, but I can't really think of a way how to enable others > do it on their machine whithout messing up the CPU. You beat me in the response time wrt reply :). Hmm, how about we add this as a job to lcitool which controls how virt-install is spawned, that way + an Ansible playbook you always get a reproducible environment?