[CRITICAL] KIO Test "threadtest" can enter into infinite loop

[David Faure]

On Monday 09 November 2015 19:36:09 Ben Cooksley wrote:
> On Mon, Nov 9, 2015 at 10:26 AM, Albert Astals Cid <aacid at kde.org> wrote:
> > El Saturday 07 November 2015, a les 10:36:18, David Faure va escriure:
> >> On Saturday 07 November 2015 11:17:31 Ben Cooksley wrote:
> >> > Hi all,
> >> >
> >> > It appears the test running with the binary name of "threadtest" in
> >> > kio has a grave bug which can lead to it entering into an infinite
> >> > loop.
> >> >
> >> > This was consuming virtually the entire resources of one builder with
> >> > old hung processes, and the whole core of another builder -
> >> > drastically limiting the capabilities of the CI system (even though
> >> > KIO was not being built at the time).
> >> >
> >> > Can someone please investigate? Manual intervention (with kill -9) is
> >> > needed to remove these hung processes.
> >>
> >> It of course works fine on my own machine.
> >>
> >> And I just tried running it on LinuxNode2, in
> >> ~/builds/kio/stable-kf5-qt5/build/autotests (after sourcing ~/kio.env which
> >> I just generated), and it ran fine (multiple times).
> >>
> >> Any suggestion on how / where to hit the issue?
> >
> > I too have serious problems being able to reproduce the same results on the
> > build nodes than CI has :(
> >
> > I guess we're most probably missing some step (e.g. kdelibs failing test
> > always work when i try to reproduce it, rocs compiles fine, etc)
> 
> Albert, did you try with the kf5-qt5 or stable-kf5-qt5 branch group?
> It seems this is a Qt regression (and the version differs).

Now I'm not sure if you guys are talking about kio's threadtest or about other
things (kdelibs, rocs).

To get back to the kio threadtest topic, it passes in a loop here, even with Qt 5.6.
  -> sorry Oswald, false alert.

So I think Nicolás Alvarez is right, this is more likely a bug in asan.
I forgot that we had that enabled in the CI - which makes one more difference between
our local setups and the CI ;)

Ben, Albert, do we have a way to turn off asan for kio's threadtest?

-- 
David Faure, faure at kde.org, http://www.davidfaure.fr
Working on KDE Frameworks 5