[mythtv-commits] Ticket #6100: QString segfault from PlayerContext::GetPreviousChannel

[MythTV]

#6100: QString segfault from PlayerContext::GetPreviousChannel
-----------------------+----------------------------------------------------
 Reporter:  anonymous  |       Owner:  ijr    
     Type:  defect     |      Status:  new    
 Priority:  minor      |   Milestone:  unknown
Component:  mythtv     |     Version:  head   
 Severity:  medium     |     Mlocked:  0      
-----------------------+----------------------------------------------------
 Trunk rev 19625.

 Reproduce with:[[BR]]
 1. Open LiveTV[[BR]]
 2. change channel once[[BR]]
 3. hit PreviousChannel (first time works)[[BR]]
 4. hit PreviousChannel agan ---> crash[[BR]]


 {{{
 Thread 1 (process 9100):
 #0  0x08081259 in QString (this=0xbfcd61d4, other=@0x200) at
 /usr/include/qt4/QtCore/qstring.h:670
 #1  0xb795c49b in PlayerContext::GetPreviousChannel (this=0xb2366a70) at
 playercontext.cpp:644
 #2  0xb7874a01 in TV::ShowPreviousChannel (this=0x9e5dfc98,
 ctx=0xb2366a70) at tv_play.cpp:6597
 #3  0xb7885cf9 in TV::PopPreviousChannel (this=0x9e5dfc98, ctx=0xb2366a70,
 immediate_change=false) at tv_play.cpp:6627
 #4  0xb78d7f77 in TV::ActivePostQHandleAction (this=0x9e5dfc98,
 ctx=0xb2366a70, actions=@0xbfcd640c, isDVD=false) at tv_play.cpp:4326
 #5  0xb78d9535 in TV::ProcessKeypress (this=0x9e5dfc98, actx=0xb2366a70,
 e=0x892f248) at tv_play.cpp:3323
 #6  0xb78e5fd1 in TV::timerEvent (this=0x9e5dfc98, te=0xbfcd6acc) at
 tv_play.cpp:2337
 #7  0xb556f53f in QObject::event () from /usr/lib/libQtCore.so.4
 #8  0xb58828ec in QApplicationPrivate::notify_helper () from
 /usr/lib/libQtGui.so.4
 #9  0xb588a72e in QApplication::notify () from /usr/lib/libQtGui.so.4
 #10 0xb555fe61 in QCoreApplication::notifyInternal () from
 /usr/lib/libQtCore.so.4
 #11 0xb558dd81 in ?? () from /usr/lib/libQtCore.so.4
 #12 0xb558a520 in ?? () from /usr/lib/libQtCore.so.4
 #13 0xb37c26f8 in g_main_context_dispatch () from
 /usr/lib/libglib-2.0.so.0
 #14 0xb37c5da3 in ?? () from /usr/lib/libglib-2.0.so.0
 #15 0xb37c5f61 in g_main_context_iteration () from
 /usr/lib/libglib-2.0.so.0
 #16 0xb558a478 in QEventDispatcherGlib::processEvents () from
 /usr/lib/libQtCore.so.4
 #17 0xb591cea5 in ?? () from /usr/lib/libQtGui.so.4
 #18 0xb5560f36 in QCoreApplication::processEvents () from
 /usr/lib/libQtCore.so.4
 #19 0xb78eaa43 in TV::StartTV (tvrec=0x0, startInGuide=false,
 inPlaylist=false, initByNetworkCommand=false) at tv_play.cpp:298
 #20 0x0807317b in startTVNormal () at main.cpp:356
 #21 0x0807e212 in TVMenuCallback (data=0x8248a60, selection=@0xb235aa08)
 at main.cpp:383
 #22 0xb671b490 in MythThemedMenu::handleAction (this=0xb235a950,
 action=@0xad113d8c) at myththemedmenu.cpp:672
 #23 0xb671b54d in MythThemedMenu::buttonAction (this=0xb235a950,
 item=0xad172780) at myththemedmenu.cpp:552
 #24 0xb67a8d41 in MythThemedMenu::qt_metacall (this=0xb235a950,
 _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbfcd727c) at
 moc_myththemedmenu.cpp:69
 #25 0xb5574a60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
 #26 0xb55757e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
 #27 0xb67aa83a in MythUIButtonList::itemClicked (this=0xb235ff10,
 _t1=0xad172780) at moc_mythuibuttonlist.cpp:94
 #28 0xb6730857 in MythUIButtonList::keyPressEvent (this=0xb235ff10,
 e=0xbfcd779c) at mythuibuttonlist.cpp:873
 #29 0xb671b63a in MythThemedMenu::keyPressEvent (this=0xb235a950,
 event=0xbfcd779c) at myththemedmenu.cpp:215
 #30 0xb66af3b5 in MythMainWindow::eventFilter (this=0x830af08,
 e=0xbfcd779c) at mythmainwindow.cpp:1349
 #31 0xb555f04a in QCoreApplicationPrivate::sendThroughObjectEventFilters
 () from /usr/lib/libQtCore.so.4
 #32 0xb58828ca in QApplicationPrivate::notify_helper () from
 /usr/lib/libQtGui.so.4
 #33 0xb588b806 in QApplication::notify () from /usr/lib/libQtGui.so.4
 #34 0xb555fe61 in QCoreApplication::notifyInternal () from
 /usr/lib/libQtCore.so.4
 #35 0xb58e33de in ?? () from /usr/lib/libQtGui.so.4
 #36 0xb5919bb0 in ?? () from /usr/lib/libQtGui.so.4
 #37 0xb591bd26 in ?? () from /usr/lib/libQtGui.so.4
 #38 0xb58f2af5 in QApplication::x11ProcessEvent () from
 /usr/lib/libQtGui.so.4
 #39 0xb591d7aa in ?? () from /usr/lib/libQtGui.so.4
 #40 0xb37c26f8 in g_main_context_dispatch () from
 /usr/lib/libglib-2.0.so.0
 #41 0xb37c5da3 in ?? () from /usr/lib/libglib-2.0.so.0
 #42 0xb37c5f61 in g_main_context_iteration () from
 /usr/lib/libglib-2.0.so.0
 #43 0xb558a478 in QEventDispatcherGlib::processEvents () from
 /usr/lib/libQtCore.so.4
 #44 0xb591cea5 in ?? () from /usr/lib/libQtGui.so.4
 #45 0xb555e52a in QEventLoop::processEvents () from
 /usr/lib/libQtCore.so.4
 #46 0xb555e6ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
 #47 0xb5560da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
 #48 0xb5882767 in QApplication::exec () from /usr/lib/libQtGui.so.4
 #49 0x0807c217 in main (argc=3, argv=0xbfcd86d4) at main.cpp:1395
 }}}

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/6100>
MythTV <http://www.mythtv.org/>
MythTV