On Thu, Oct 13, 2016 at 03:30:22PM +0100, Sergio Martins wrote:
> On 2016-10-12 20:59, Thiago Macieira wrote:
> >We've got a number of issues that got fixed in 5.7 by the change that made
> >QFactoryLoader stop unloading plugins (notably, the Network Manager bearer
> >plugin). Given that QtDBus in 5.6 is now heavily threaded, a number of new
> >issues have cropped up. I've managed to fix some, but reports from Ubuntu
> >developers indicate the latest fix only uncovered the next issue.
> More importantly, this also solves all the QStringLiteral related crashes
> we've been seeing.
These would be fixable by going back to QLatin1String.
> We need this in 5.6, but it's too big a behaviour change for an LTS release.
> We need at least a variable to turn it on/off.
> Suggestion which me and peppe discussed:
> Make it opt-in in 5.6.3 and write in the ChangeLog that there will be a
> behaviour change in 5.6.4.
> Make it opt-out in 5.6.4 (bringing it on-par with 5.8).
> This gives the user a pre-warning of 3 months, it can still be turned off
> and fixes many crashes.
I still consider the approach of not unloading plugins fundamentally
wrong. It only deepens the trench between Qt and valid approaches
at software architectures.
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