SIGSEGV on plugin registration

[Maik Qualmann]

Ok, the cause for the video plugin is now clear. I do not see any output of 
QtAV from the main program. So you have compiled digiKam without QtAV, that 
plugin will come from a previous digiKam installation with QtAV support. For 
the crash at the end I changed something in git/master. A new test would be 
nice.

Maik

Am Montag, 21. Oktober 2019, 19:52:54 CEST schrieb Andrew Goodbody:
> On 21/10/2019 11:25, Maik Qualmann wrote:
> > Hmm, after the debug output the HTML plugin is already registered, next
> > probably the video slideshow plugin will be registered. Please delete this
> > file once as a test:
> > 
> > /usr/lib/x86_64-linux-gnu/qt5/plugins/digikam/generic/
> > Generic_VideoSlideShow_Plugin.so
> > 
> > Maik
> 
> Thanks, yes, digiKam now starts for me with that plugin deleted.
> 
> 
> However I get a SIGSEGV on exit.
> 
> [Thread 0x7fffcb7fe700 (LWP 12121) exited]
> digikam.general: Cancel Main Thread
> digikam.general: Cancel Main Thread
> [Thread 0x7fff67ffd700 (LWP 12127) exited]
> QThreadStorage: Thread 0x1de1e70 exited after QThreadStorage 15 destroyed
> QThreadStorage: Thread 0x1de1e70 exited after QThreadStorage 12 destroyed
> QThreadStorage: Thread 0xd9ff90 exited after QThreadStorage 12 destroyed
> [Thread 0x7fff4e77f700 (LWP 12164) exited]
> [Thread 0x7fff4ffff700 (LWP 12134) exited]
> [Thread 0x7fffd9dd5700 (LWP 12110) exited]
> [Thread 0x7fffcaffd700 (LWP 12123) exited]
> QThreadStorage: Thread 0x1de1ce0 exited after QThreadStorage 15 destroyed
> QThreadStorage: Thread 0x1de1ce0 exited after QThreadStorage 12 destroyed
> QThreadStorage: Thread 0x3bab5b0 exited after QThreadStorage 15 destroyed
> QThreadStorage: Thread 0x3bab5b0 exited after QThreadStorage 12 destroyed
> [Thread 0x7fffae8d3700 (LWP 12124) exited]
> [Thread 0x7fff653fd700 (LWP 12135) exited]
> [Thread 0x7fff663ff700 (LWP 12133) exited]
> [Thread 0x7fffcbfff700 (LWP 12119) exited]
> [Thread 0x7fffdbada700 (LWP 12108) exited]
> 
> Thread 1 "digikam" received signal SIGSEGV, Segmentation fault.
> 0x00007ffff312f3f5 in __kmp_acquire_ticket_lock () from
> /usr/lib/x86_64-linux-gnu/libomp.so.5
> (gdb) bt
> #0  0x00007ffff312f3f5 in __kmp_acquire_ticket_lock () at
> /usr/lib/x86_64-linux-gnu/libomp.so.5
> #1  0x00007ffff30d75dc in __kmpc_set_lock () at
> /usr/lib/x86_64-linux-gnu/libomp.so.5
> #2  0x00007ffff505e9e8 in MagickCoreTerminus ()
>      at /usr/lib/x86_64-linux-gnu/libMagickCore-6.Q16.so.6
> #3  0x00007fffc80839c7 in
> DigikamImageMagickDImgPlugin::DImgImageMagickPlugin::~DImgImageMagickPlugin(
> ) (this=0x1067f90)
>      at
> /home/ag/src/dk6/core/dplugins/dimg/imagemagick/dimgimagemagickplugin.cpp:61
> #4  0x00007fffc8083a19 in
> DigikamImageMagickDImgPlugin::DImgImageMagickPlugin::~DImgImageMagickPlugin(
> ) (this=0x1067f90)
>      at
> /home/ag/src/dk6/core/dplugins/dimg/imagemagick/dimgimagemagickplugin.cpp:60
> #5  0x00007ffff37119d7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
> #6  0x00007ffff371340b in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
> #7  0x00007ffff2ee9c97 in __cxa_finalize (d=0x7ffff39a5960) at
> cxa_finalize.c:83
> #8  0x00007ffff354cb83 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
> #9  0x00007fffffffe080 in  ()
> #10 0x00007ffff7fe4943 in _dl_fini () at dl-fini.c:138
> (gdb)
> 
> 
> Andrew