[mythtv] Announcement: Master/0.28 is moving to QT 5.2

[George Nassas]

On Mar 1, 2015, at 5:47 AM, Stuart Morgan <stuart at tase.co.uk> wrote:
> 
> We're on the hunt for bugs caused by the switch to QT 5


I’m running today’s master with qt4 libraries and had the appended crash when I undeleted a deleted recording. There are no qt5 libraries on the system. I’ll leave it to you guys if this is a bug or even relevant.

- George

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/mythfrontend'.
Program terminated with signal 6, Aborted.
#0  0x00007f7058a61165 in *__GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#0  0x00007f7058a61165 in *__GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1  0x00007f7058a643e0 in *__GI_abort () at abort.c:92
#2  0x00007f70595d0722 in qt_message_output (msgType=msgType at entry=QtFatalMsg, buf=0x7f703cdd2bd8 "ASSERT: \"!isEmpty()\" in file /usr/include/qt4/QtCore/qlist.h, line 282") at global/qglobal.cpp:2284
#3  0x00007f70595d0a98 in qt_message(QtMsgType, const char *, typedef __va_list_tag __va_list_tag *) (msgType=msgType at entry=QtFatalMsg, msg=0x7f7059738528 "ASSERT: \"%s\" in file %s, line %d", ap=ap at entry=0x7f6fb611d158) at global/qglobal.cpp:2330
#4  0x00007f70595d0c24 in qFatal (msg=<optimized out>) at global/qglobal.cpp:2513
#5  0x00000000004a0246 in QList<QString>::first (this=0x7f6fb611d470) at /usr/include/qt4/QtCore/qlist.h:282
#6  0x000000000049c5e8 in QList<QString>::front (this=0x7f6fb611d470) at /usr/include/qt4/QtCore/qlist.h:298
#7  0x00000000005d1857 in PBHEventHandler::event (this=0x7f703da7b330, e=0x7f6f50e6c770) at playbackboxhelper.cpp:220
#8  0x00007f7059f4a70c in QApplicationPrivate::notify_helper (this=this at entry=0xccf390, receiver=receiver at entry=0x7f703da7b330, e=e at entry=0x7f6f50e6c770) at kernel/qapplication.cpp:4556
#9  0x00007f7059f4eb8a in QApplication::notify (this=0xccef30, receiver=0x7f703da7b330, e=0x7f6f50e6c770) at kernel/qapplication.cpp:4417
#10 0x00007f70596d5b5e in QCoreApplication::notifyInternal (this=0xccef30, receiver=receiver at entry=0x7f703da7b330, event=event at entry=0x7f6f50e6c770) at kernel/qcoreapplication.cpp:915
#11 0x00007f70596d99e1 in sendEvent (event=0x7f6f50e6c770, receiver=0x7f703da7b330) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#12 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x7f703d02d8e0) at kernel/qcoreapplication.cpp:1539
#13 0x00007f70597040e3 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#14 postEventSourceDispatch (s=0x178e7a0) at kernel/qeventdispatcher_glib.cpp:279
#15 0x00007f70541c3355 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f70541c3688 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f70541c3744 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f7059704276 in QEventDispatcherGlib::processEvents (this=0x167a5e0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#19 0x00007f70596d48af in QEventLoop::processEvents (this=this at entry=0x7f6fb611ddc0, flags=...) at kernel/qeventloop.cpp:149
#20 0x00007f70596d4b38 in QEventLoop::exec (this=0x7f6fb611ddc0, flags=...) at kernel/qeventloop.cpp:204
#21 0x00007f70595d7d70 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#22 0x00007f7064c8f45c in MThreadInternal::QThreadRun (this=0x7f703d982d00) at mthread.cpp:81
#23 0x00007f7064c8ed6e in MThread::run (this=0x7f70444bac60) at mthread.cpp:321
#24 0x00007f7064c8f441 in MThreadInternal::run (this=0x7f703d982d00) at mthread.cpp:79
#25 0x00007f70595dad0b in QThreadPrivate::start (arg=0x7f703d982d00) at thread/qthread_unix.cpp:307
#26 0x00007f705d66ab50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#27 0x00007f7058b0a95d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#28 0x0000000000000000 in ?? ()
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