id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc,mlocked 7940,Random crash changing channels in Live TV,Antony Gelberg ,Isaac Richards,"My dad was operating the frontend when this happened, he said he was changing channels and it just froze. I wish I could make some sense of the backtrace, but I can't. I hope that you can. The annoying thing is that it's very intermittent, most of the time Live TV is quite reliable. Anyway please let me know if you require any more information about my setup. gelberg@loungemyth:~$ sudo gdb mythfrontend /tmp/core.1263995547.1000.12886.mythfrontend [sudo] password for gelberg: GNU gdb 6.8-debian Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type ""show copying"" and ""show warranty"" for details. 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Loaded symbols for /usr/local/stow/mythtv/svn/release-0-22-fixes//lib/mythtv/filters/libivtc.so Reading symbols from /usr/local/stow/mythtv/svn/release-0-22-fixes/lib/mythtv/filters/libkerneldeint.so...done. Loaded symbols for /usr/local/stow/mythtv/svn/release-0-22-fixes//lib/mythtv/filters/libkerneldeint.so Reading symbols from /usr/local/stow/mythtv/svn/release-0-22-fixes/lib/mythtv/filters/liblinearblend.so...done. Loaded symbols for /usr/local/stow/mythtv/svn/release-0-22-fixes//lib/mythtv/filters/liblinearblend.so Reading symbols from /usr/local/stow/mythtv/svn/release-0-22-fixes/lib/mythtv/filters/libonefield.so...done. Loaded symbols for /usr/local/stow/mythtv/svn/release-0-22-fixes//lib/mythtv/filters/libonefield.so Reading symbols from /usr/local/stow/mythtv/svn/release-0-22-fixes/lib/mythtv/filters/libquickdnr.so...done. Loaded symbols for /usr/local/stow/mythtv/svn/release-0-22-fixes//lib/mythtv/filters/libquickdnr.so Reading symbols from /usr/local/stow/mythtv/svn/release-0-22-fixes/lib/mythtv/filters/libyadif.so...done. Loaded symbols for /usr/local/stow/mythtv/svn/release-0-22-fixes//lib/mythtv/filters/libyadif.so Core was generated by `mythfrontend -v playback'. Program terminated with signal 11, Segmentation fault. [New process 12886] [New process 12920] [New process 22706] [New process 12894] [New process 12912] [New process 12896] [New process 12915] [New process 12902] [New process 22748] [New process 12895] [New process 12911] #0 0x00007f965b8b85b2 in ?? () from /lib/libc.so.6 (gdb) set pagination off (gdb) thread apply all bt Thread 11 (process 12911): #0 0x00007f965b90bce2 in select () from /lib/libc.so.6 #1 0x00007f966102f304 in MythSocketThread::run (this=0x24d5460) at mythsocketthread.cpp:260 #2 0x00007f965c3a8162 in ?? () from /usr/lib/libQtCore.so.4 #3 0x00007f965ed96fc7 in start_thread () from /lib/libpthread.so.0 #4 0x00007f965b9125ad in clone () from /lib/libc.so.6 #5 0x0000000000000000 in ?? () Thread 10 (process 12895): #0 0x00007f965ed9afad in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00007f965c3a7bc5 in ?? () from /usr/lib/libQtCore.so.4 #2 0x00007f965c3a7d1e in QThread::msleep () from /usr/lib/libQtCore.so.4 #3 0x00007f9661cc4c21 in TaskQueue::run (this=0x2552730) at taskqueue.cpp:127 #4 0x00007f965c3a8162 in ?? () from /usr/lib/libQtCore.so.4 #5 0x00007f965ed96fc7 in start_thread () from /lib/libpthread.so.0 #6 0x00007f965b9125ad in clone () from /lib/libc.so.6 #7 0x0000000000000000 in ?? () Thread 9 (process 22748): #0 0x00007f965ed9afad in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00007f965c3a9137 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4 #2 0x00007f9663966bec in MHIContext::GetCarouselData (this=0x5c1d780, objectPath={static null = {}, static shared_null = {ref = {_q_value = 8644}, alloc = 0, size = 0, data = 0x84fcda, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, static shared_empty = {ref = {_q_value = 2467}, alloc = 0, size = 0, data = 0x7f965c776cfa, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d = 0x46381ec0, static codecForCStrings = 0x0}, result=@0x46381e90) at mhi.cpp:358 #3 0x00007f9660a82b71 in MHEngine::Launch (this=0x8827090, target=@0x46381f70, fIsSpawn=false) at Engine.cpp:196 #4 0x00007f9660a83163 in MHEngine::RunAll (this=0x8827090) at Engine.cpp:89 #5 0x00007f9663966d46 in MHIContext::RunMHEGEngine (this=0x5c1d780) at mhi.cpp:234 #6 0x00007f9663966e1b in MHIContext::StartMHEGEngine (param=0x5c1d780) at mhi.cpp:204 #7 0x00007f965ed96fc7 in start_thread () from /lib/libpthread.so.0 #8 0x00007f965b9125ad in clone () from /lib/libc.so.6 #9 0x0000000000000000 in ?? () Thread 8 (process 12902): #0 0x00007f965ed9ad29 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00007f965c3a9159 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4 #2 0x00007f96617fa196 in MythContext::waitPrivRequest (this=0x2548a40) at mythcontext.cpp:2424 #3 0x0000000000437bc6 in run_priv_thread (data=0x0) at main.cpp:990 #4 0x00007f965ed96fc7 in start_thread () from /lib/libpthread.so.0 #5 0x00007f965b9125ad in clone () from /lib/libc.so.6 #6 0x0000000000000000 in ?? () Thread 7 (process 12915): #0 0x00007f965b90bce2 in select () from /lib/libc.so.6 #1 0x00007f965c470746 in ?? () from /usr/lib/libQtCore.so.4 #2 0x00007f965c3a8162 in ?? () from /usr/lib/libQtCore.so.4 #3 0x00007f965ed96fc7 in start_thread () from /lib/libpthread.so.0 #4 0x00007f965b9125ad in clone () from /lib/libc.so.6 #5 0x0000000000000000 in ?? () Thread 6 (process 12896): #0 0x00007f965b90bce2 in select () from /lib/libc.so.6 #1 0x00007f9661cc07c4 in SSDP::run (this=0x2554520) at ssdp.cpp:231 #2 0x00007f965c3a8162 in ?? () from /usr/lib/libQtCore.so.4 #3 0x00007f965ed96fc7 in start_thread () from /lib/libpthread.so.0 #4 0x00007f965b9125ad in clone () from /lib/libc.so.6 #5 0x0000000000000000 in ?? () Thread 5 (process 12912): #0 0x00007f965b90bce2 in select () from /lib/libc.so.6 #1 0x00007f966144d059 in LIRC::run (this=0x25965d0) at lirc.cpp:451 #2 0x00007f965c3a8162 in ?? () from /usr/lib/libQtCore.so.4 #3 0x00007f965ed96fc7 in start_thread () from /lib/libpthread.so.0 #4 0x00007f965b9125ad in clone () from /lib/libc.so.6 #5 0x0000000000000000 in ?? () Thread 4 (process 12894): #0 0x00007f965b909b66 in poll () from /lib/libc.so.6 #1 0x00007f96583c4e18 in ?? () from /usr/lib/libglib-2.0.so.0 #2 0x00007f96583c513b in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #3 0x00007f965c4b872e in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4 #4 0x00007f965c48eca2 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4 #5 0x00007f965c48ee2d in QEventLoop::exec () from /usr/lib/libQtCore.so.4 #6 0x00007f965c3a5218 in QThread::exec () from /usr/lib/libQtCore.so.4 #7 0x00007f9661cd64a1 in WorkerThread::run (this=0x254e880) at threadpool.cpp:267 #8 0x00007f965c3a8162 in ?? () from /usr/lib/libQtCore.so.4 #9 0x00007f965ed96fc7 in start_thread () from /lib/libpthread.so.0 #10 0x00007f965b9125ad in clone () from /lib/libc.so.6 #11 0x0000000000000000 in ?? () Thread 3 (process 22706): #0 0x00007f965b90bce2 in select () from /lib/libc.so.6 #1 0x00007f96610859ac in MSocketDevice::waitForMore (this=0x7f963d1751a0, msecs=200, timeout=0x0) at msocketdevice_unix.cpp:715 #2 0x00007f966107b495 in RemoteFile::Read (this=0x7f963d1ad3a0, data=0x10d87380, size=32768) at remotefile.cpp:503 #3 0x00007f96633c182b in RingBuffer::safe_read (this=0x14b65d70, rf=0x7f963d1ad3a0, data=0x10d87380, sz=32768) at RingBuffer.cpp:637 #4 0x00007f96633c3b5d in RingBuffer::ReadAheadThread (this=0x14b65d70) at RingBuffer.cpp:1002 #5 0x00007f96633c4073 in RingBuffer::StartReader (type=0x14b65d70) at RingBuffer.cpp:896 #6 0x00007f965ed96fc7 in start_thread () from /lib/libpthread.so.0 #7 0x00007f965b9125ad in clone () from /lib/libc.so.6 #8 0x0000000000000000 in ?? () Thread 2 (process 12920): #0 0x00007f965ed9ad29 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00007f965c3a9159 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4 #2 0x000000000052d3fa in NetworkControl::RunCommandThread (this=0x32f99d0) at networkcontrol.cpp:267 #3 0x000000000052d54d in NetworkControl::CommandThread (param=0x32f99d0) at networkcontrol.cpp:254 #4 0x00007f965ed96fc7 in start_thread () from /lib/libpthread.so.0 #5 0x00007f965b9125ad in clone () from /lib/libc.so.6 #6 0x0000000000000000 in ?? () Thread 1 (process 12886): #0 0x00007f965b8b85b2 in ?? () from /lib/libc.so.6 #1 0x00007f965b8b8a56 in free () from /lib/libc.so.6 #2 0x00007f9662b41282 in av_free (ptr=0x7f963d2d35a0) at mem.c:129 #3 0x00007f96621a17d3 in av_destruct_packet (pkt=0x7f963d324410) at avpacket.c:32 #4 0x00007f96621a1693 in av_free_packet (pkt=0x7f963d2d12a0) at avpacket.c:94 #5 0x00007f9662d6b137 in flush_packet_queue (s=0x7f963d7b15e0) at utils.c:1152 #6 0x00007f9662d6f271 in av_close_input_stream (s=0x7f963d7b15e0) at utils.c:2416 #7 0x00007f9662d6f398 in av_close_input_file (s=0x7f963d7b15e0) at utils.c:2433 #8 0x00007f96637a391f in AvFormatDecoder::CloseContext (this=0x7f964d697230) at avformatdecoder.cpp:549 #9 0x00007f96637a39d5 in ~AvFormatDecoder (this=0x7f964d697230) at avformatdecoder.cpp:504 #10 0x00007f966370fc2d in NuppelVideoPlayer::SetDecoder (this=0x71282c0, dec=0x0) at NuppelVideoPlayer.cpp:7466 #11 0x00007f966374f502 in ~NuppelVideoPlayer (this=0x71282c0) at NuppelVideoPlayer.cpp:335 #12 0x00007f966376c3cb in PlayerContext::SetNVP (this=0x118bebd0, new_nvp=0x0) at playercontext.cpp:828 #13 0x00007f966376c46a in PlayerContext::TeardownPlayer (this=0x118bebd0) at playercontext.cpp:77 #14 0x00007f966376fa4e in ~PlayerContext (this=0x118bebd0) at playercontext.cpp:65 #15 0x00007f96636aae69 in ~TV (this=0xbce93b0) at tv_play.cpp:1109 #16 0x00007f96636f77ff in TV::StartTV (tvrec=0x0, startInGuide=false, inPlaylist=false, initByNetworkCommand=false) at tv_play.cpp:371 #17 0x000000000043abdb in startTVNormal () at main.cpp:415 #18 0x0000000000445994 in TVMenuCallback (data=0x2548a40, selection=@0x3301ae8) at main.cpp:442 #19 0x00007f96613d0781 in MythThemedMenu::handleAction (this=0x33019c0, action=@0x137e8638, password=@0x7fff9cc55400) at myththemedmenu.cpp:866 #20 0x00007f96613d0b1b in MythThemedMenu::buttonAction (this=0x33019c0, item=0x3555a70, skipPass=false) at myththemedmenu.cpp:735 #21 0x00007f9661464e61 in MythThemedMenu::qt_metacall (this=0x33019c0, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0x7fff9cc55560) at moc_myththemedmenu.cpp:72 #22 0x00007f965c4a46d4 in QMetaObject::activate () from /usr/lib/libQtCore.so.4 #23 0x00007f96614669a8 in MythUIButtonList::itemClicked (this=0x331fdb0, _t1=0x3555a70) at moc_mythuibuttonlist.cpp:94 #24 0x00007f96613e79dc in MythUIButtonList::keyPressEvent (this=0x331fdb0, e=0x7fff9cc55e10) at mythuibuttonlist.cpp:887 #25 0x00007f96613d15ea in MythThemedMenu::keyPressEvent (this=0x33019c0, event=0x7fff9cc55e10) at myththemedmenu.cpp:215 #26 0x00007f966134b4ae in MythMainWindow::eventFilter (this=0x259bf00, e=0x7fff9cc55e10) at mythmainwindow.cpp:1487 #27 0x00007f965c48f658 in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4 #28 0x00007f965cc49a2c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4 #29 0x00007f965cc52684 in QApplication::notify () from /usr/lib/libQtGui.so.4 #30 0x00007f965c490381 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4 #31 0x00007f9661838a8b in QCoreApplication::sendEvent (receiver=0x259bf00, event=0x7fff9cc55e10) at /usr/include/qt4/QtCore/qcoreapplication.h:209 #32 0x00007f966134fa41 in MythMainWindow::customEvent (this=0x259bf00, ce=0x7f964f4c1ed0) at mythmainwindow.cpp:1685 #33 0x00007f965c49f39d in QObject::event () from /usr/lib/libQtCore.so.4 #34 0x00007f965cc9b7d6 in QWidget::event () from /usr/lib/libQtGui.so.4 #35 0x00007f9661353042 in MythMainWindow::event (this=0x259bf00, e=0x7f964f4c1ed0) at mythmainwindow.cpp:793 #36 0x00007f965cc49a5d in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4 #37 0x00007f965cc517da in QApplication::notify () from /usr/lib/libQtGui.so.4 #38 0x00007f965c490381 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4 #39 0x00007f965c49101a in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4 #40 0x00007f965c4b8a83 in ?? () from /usr/lib/libQtCore.so.4 #41 0x00007f96583c17ab in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #42 0x00007f96583c4f7d in ?? () from /usr/lib/libglib-2.0.so.0 #43 0x00007f96583c513b in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #44 0x00007f965c4b870f in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4 #45 0x00007f965ccdb44f in ?? () from /usr/lib/libQtGui.so.4 #46 0x00007f965c48eca2 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4 #47 0x00007f965c48ee2d in QEventLoop::exec () from /usr/lib/libQtCore.so.4 #48 0x00007f965c4912dd in QCoreApplication::exec () from /usr/lib/libQtCore.so.4 #49 0x0000000000443589 in main (argc=3, argv=0x7fff9cc57d88) at main.cpp:1539 ",defect,new,minor,unknown,MythTV - General,0.22-fixes,medium,,,,0