[GEM-dev] [pd-gem:bugs] #233 load both "videoVLC" and "imageMagick" at startup crash pd

"IOhannes m zmölnig" zmoelnig at users.sf.net
Wed Sep 3 18:45:27 CEST 2014


urgh, this is slightly ugly to debug.

both vlc and ImageMagick have plugin-systems, which get initialized during initialization of Gem's plugin system, and which seem to trigger a conflict.

just to imagine:

- Pd starts, and loads *Gem.pd_linux* via `dlopen()`.
    - *Gem* searches for plugins and finds and loads *gem_imageMAGICK.so* via `dlopen()`.
        - *gem_imageMAGICK.so* initializes *ImageMagick*
            - *ImageMagick* searches for plugins in `/usr/lib/.../ImageMagick-6.7.7/modules-Q16/` and loads them via `dlopen()`.
    - *Gem* searches for more plugins and finds and loads *gem_videoVLC.so* via `dlopen()`.
        - *gem_videoVLC.so* initializes *libvlc*
            - *libvlc* searches for plugins in `/usr/lib/vlc/plugins` and loads them via `dlopen()`.




the crash seems to be related to `glibc` (when (re)initialized by the qt-plugin for vlc's gui)


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** [bugs:#233] load both "videoVLC" and "imageMagick" at startup crash pd**

**Status:** open
**OS:** linux
**Release:** 0.94
**Labels:** linux imageMagick videoVLC crash 
**Created:** Sat Aug 23, 2014 11:52 AM UTC by jack 
**Last Updated:** Thu Aug 28, 2014 01:53 PM UTC
**Owner:** IOhannes m zmölnig

When I try to load gem_videoVLC.so at startup, Pd crash.

Backtrace :
http://pastebin.com/nGnfAaBQ
++

Jack


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