Re: generic CSS version

[Florian Feldbauer <florian@ep1.ruhr-uni-bochum.de>]

Hey,

thank you both for your answers. I tried different OS versions.
On my Laptop I'm using Fedora 20. Here CSS has to be started three times...
On a different PC with Fedora 20 (recently updated to Fedora 23) CSS works fine.
In the Lab we are using Debian 8. On this machine CSS hangs when opening an OPI file.

As I said before, I would like to update to a recent CSS version. Unfortunately I currently
do not have the time to build a new site-specific version.
For PANDA a simple CSS product coming with BOY and the databrowser would be sufficient for now.
Is there a ready to run version available for CSS 4?

Regards,
Florian

On 03/02/2016 05:55 PM, Michael Davidsaver wrote:

On 03/02/2016 10:31 AM, marcus.michalsky@ptb.de wrote:

Hello Florian,

you didn't mention the OS you are running CSS upon. But if you (try to) run Eclipse 3.x (or a CSS based on it) on a more or less up-to-date linux distribution
there are some known bugs related to GTK:

* KDE Bug 327441 - Using oxygen-gtk2 causes eclipse/swt to crash (https://bugs.kde.org/show_bug.cgi?id=327441)  --> our workaround is to use another theme by setting GTK2_RC_FILES=/usr/share/themes/Raleigh/gtk-2.0/gtkrc
* Eclipse Bug 404776 causes a crash when opening Help (https://bugs.eclipse.org/bugs/show_bug.cgi?id=404776) --> our workaround is to open it in an external browser instead, i.e. setting the VM param -Dorg.eclipse.swt.browser.DefaultType=mozilla
* displaying issues when using GTK3 --> our workaround is to use GTK2 instead by setting SWT_GTK3=0

I can add one to this list: https://bugs.eclipse.org/bugs/show_bug.cgi?id=464554

I actually spent some time looking into the horrible mess that lives at the bottom of eclipse/SWT.  From what I can tell, in some situations, GTK pointers are being mistakenly passed to libcairo functions, which of course leads to a crash.  The wonders of JNI...

cs-studio-nsls2 comes with some defaults which avoid this, by using gtk2 w/o cairo.  Of course gtk2 will eventually go away, so not a permanent solution.

An excerpt from cs-studio.ini

--launcher.GTK_version
2
-vmargs

...

-Dorg.eclipse.swt.internal.gtk.cairoGraphics=false
-Dorg.eclipse.swt.internal.gtk.useCairo=false

You might also get some improvement by recompiling the eclipse-gtk C glue code against the headers provided by your linux distribution.  Though be warned that this is an errand only for those who can tolerate significant amounts of frustration.

https://github.com/mdavidsaver/eclipse-tricks

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| Dr. Florian Feldbauer                |
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