[mythtv-commits] Ticket #12757: Raspberry pi: Seg Fault when running on Ubuntu Mate xenial

[MythTV]

#12757: Raspberry pi: Seg Fault when running on Ubuntu Mate xenial
-----------------------------------------+-------------------------
 Reporter:  Peter Bennett <pgbennett@…>  |          Owner:
     Type:  Bug Report - Crash           |         Status:  new
 Priority:  minor                        |      Milestone:  unknown
Component:  MythTV - General             |        Version:  0.28.0
 Severity:  high                         |     Resolution:
 Keywords:  raspberry pi                 |  Ticket locked:  0
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Comment (by Peter Bennett <pgbennett@…>):

 In Raspberry pi ubuntu xenial there are two copies of libGLESv2.so
 {{{
 /opt/vc/lib/libGLESv2.so
 /usr/lib/arm-linux-gnueabihf/mesa-egl/libGLESv2.so
 }}}
 The one in /opt/vc/lib/ causes a segfault when the qt show() function is
 called.
 The workaround for this is change the invocation of mythfrontend to the
 following command line
 {{{
 env LD_LIBRARY_PATH=/usr/lib/arm-linux-gnueabihf/mesa-egl
 /usr/bin/mythfrontend
 }}}
 I tried various ways to build the application so that it will use the
 correct libGLESv2.so without an explicit LD_LIBRARY_PATH but it looks like
 that would require changes in many files.
 This does not apply to Raspbian, it also has two copies of that library
 but works fine with the one in /opt/vc/lib.

 I tried creating a simple qt program that shows a window and does nothing
 else. If I link it with the openmax library (/opt/vc/lib/libopenmaxil.so),
 it crashes wuth this same seg fault. If I do not link that library it
 works. So the problem is not some bug in MythTV, it occurs with a QT GUI
 program if you just link in the openmax library (which is required for
 MythTV), unless you use the LD_LIBRARY_PATH override.

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Ticket URL: <https://code.mythtv.org/trac/ticket/12757#comment:1>
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