[libvirt] [PATCH] domain_conf: Do not use USB by default for <input> devices on s390x

Michal Privoznik mprivozn at redhat.com
Mon Jan 13 15:25:08 UTC 2020

On 1/13/20 4:08 PM, Andrea Bolognani wrote:
> On Mon, 2020-01-13 at 15:02 +0100, Michal Privoznik wrote:
>> On 1/13/20 2:06 PM, Andrea Bolognani wrote:
>>> I don't believe either this or the other patch posted by Thomas
>>> should have been pushed during the freeze period. I won't ask you
>>> to revert them, but please refrain from pushing further changes
>>> unless 6.0.0 would be utterly broken without them.
>> I thought that freeze period is for us for merge fixes (and this is
>> one). I believe this patch (and the other too) has no impact on non-s390
>> arches AND fixes 6.0.0 for the s390.
>> And for "utterly broken" - I don't think that's the rule per se. I think
>> we need to evaluate each patch individually.
> The way I see it, the freeze period is intended to stabilize libvirt
> for the upcoming release; as such, changes merged during freeze
> should ideally be exceedingly small and targeted.

This was exactly my reasoning when I decided to push it:

   1 file changed, 2 insertions(+)
  10 files changed, 12 insertions(+), 10 deletions(-)

> Of course it's always a trade-off, and whether the positive outcome
> outweights the risk of potentially introducing more issues is to be
> decided on a case-by-case basis.
> Is the patch fixing an issue that was introduced in this release?
> Then it's probably worth merging it, because doing so avoids the
> situation where we release known-broken software. Is it fixing a
> long-standing issue, as is the case here? Then it can probably wait
> until the next release.

If the fix was large or risky, then certainly wait another release 
cycle. But I don't think that's the case here. But I can revert the 
patches and merge them after the release, if that makes you feel better 
about our release. I don't care that much.

> I feel like this conversation has happened a number of times on the
> list already. Perhaps it would be a good idea to try and converge to
> a set of accepted guidelines that we can add to our existing
> contributor-oriented documentation?

What we can have is a different branching model. We could have a master 
that is always ready to accept patches and individual releases would 
just branch from the master.


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