KWin 5.10.3.1 update

[Fredrik Höglund]

On Saturday 08 July 2017, Martin Flöser wrote:
> Am 2017-07-07 15:54, schrieb Maximiliano Curia:
> > ¡Hola Jonathan!
> > 
> > El 2017-07-03 a las 17:26 +0100, Jonathan Riddell escribió:
> >> KWin has received an update to the 5.10.3 release. 5.10.3.1 contains a 
> >> fix for https://bugs.kde.org/show_bug.cgi?id=381870 Freeze in 
> >> KWin::checkGLError on startup which affects machines with an NVidia 
> >> card.
> > 
> >> The change is 
> >> https://commits.kde.org/kwin/aefb5f4dd9d41aa7377d56ece203089c73aefe07
> > 
> >> https://www.kde.org/info/plasma-5.10.3.php
> > 
> >> kwin-5.10.3.1 4.4MB 
> >> 199e3a2593e9e66bbd6521ee8a25a012003d15f6b4bf2f102c70b798c9abd03a
> > 
> > Is this fix backportable to the 5.8 branch?
> 
> NO! The fix is for a regression introduced with 5.10.3.
> 
> If there are changes which can be backported we will do. Please do not 
> cherry pick changes, that makes it impossible for us to ensure the 
> quality or investigate bugs.

Technically it is not a regression.  It is just more likely to happen in
5.10.3, but it affects all versions of KWin.

KWin can also crash when a graphics reset has occurred, since it assumes
that glMapBufferRange() never returns NULL, and that is not the case when
the context has been lost.

Fredrik