recent/new Plasma5 crashes under investigation

Sandro Mani manisandro at gmail.com
Wed Feb 11 15:52:23 UTC 2015


On 11.02.2015 16:04, Rex Dieter wrote:
> FYI,
>
> KDE SIG is investigating some recent/serious reported crasher bugs in
> rawhide, notably:
>
> "Could not sync environment to dbus." (startkde)
> https://bugzilla.redhat.com/show_bug.cgi?id=1191171
>
> and (an older one, but the situation has gotten worse recently):
>
> Qt5 application crashes when connecting/disconnecting displays
> https://bugzilla.redhat.com/show_bug.cgi?id=1083664
> https://bugreports.qt.io/browse/QTBUG-44388
>
>
> Initial theories are that gcc5 landing may have something to do with it,
> since the recent crashes go away reverting to pre-gcc5 builds of the same
> packages.
While gcc 5.0 exposed some issues in the Qt codebase which are actual 
bugs (reported in the above linked QTBUG-44388), there is also 
definitely a compiler bug involved here (one hint of this being that I'm 
able to compile c++ code with a derived class method calling a private 
function of a base class). I'm currently trying to narrow down the 
issue. In any event, this bug is causing most Qt5 applications to crash 
right on start (regardless of the display configuration).

Sandro



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