[mythtv] SegFault live TV with trace

Mon Mar 14 23:09:10 UTC 2005

I left my live tv on and myth crashed and when I came back I got the 
following trace.

2005-03-13 00:35:36.652 RemoteFile::Read() failed in 
RingBuffer::safe_read().
Couldn't read file: rbuf://127.0.0.1:6543/mnt/store//ringbuf2.nuv
[Thread -223794256 (LWP 28898) exited]
2005-03-13 00:35:36.691 LiveTV not successfully started
[Thread -234284112 (LWP 28899) exited]
2005-03-13 00:35:36.702 Changing from None to WatchingLiveTV

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -213304400 (LWP 28440)]
0x06ab3899 in QMutex::lock () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
(gdb) thread apply all bt full

Thread 5 (Thread -213304400 (LWP 28440)):
#0  0x06ab3899 in QMutex::lock () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#1  0x00521df4 in OSD::DialogShowing (this=0x0, name=@0x84b127c)
     at osd.cpp:1695
         ret = false
#2  0x005b8a0a in TV::RunTV (this=0x84b11b8) at tv_play.cpp:1164
         keypressed = (QKeyEvent *) 0x923b6c8
         updatecheck = 10
#3  0x005b7f10 in TV::EventThread (param=0x84b11b8) at tv_play.cpp:1050
         thetv = (class TV *) 0x84b11b8
#4  0x001e698c in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#5  0x00ff216a in clone () from /lib/tls/libc.so.6
No symbol table info available.

Thread 4 (Thread -153232464 (LWP 28417)):
#0  0x002427a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
No symbol table info available.
#1  0x001e9950 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
    from /lib/tls/libpthread.so.0
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#2  0x067ae7e7 in QThread::exit () from 
/usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#3  0x067ae8f2 in QThread::msleep () from 
/usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#4  0x00aae75c in MonitorThread::run (this=0x84cc980)
     at mythmediamonitor.cpp:77
No locals.
#5  0x067ae46a in QThreadInstance::start ()
    from /usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#6  0x001e698c in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#7  0x00ff216a in clone () from /lib/tls/libc.so.6
No symbol table info available.

Thread 2 (Thread 61279152 (LWP 28415)):
#0  0x002427a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
No symbol table info available.
#1  0x001e9790 in pthread_cond_wait@@GLIBC_2.3.2 ()
    from /lib/tls/libpthread.so.0
No symbol table info available.
#2  0x06ab41f9 in QWaitCondition::wait ()
    from /usr/lib/qt-3.3/lib/libqt-mt.so.3
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#3  0x009b73a2 in MythContext::waitPrivRequest (this=0x8447a40)
     at mythcontext.cpp:2126
No locals.
#4  0x0806c25d in run_priv_thread (data=0x0) at main.cpp:663
No locals.
#5  0x001e698c in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#6  0x00ff216a in clone () from /lib/tls/libc.so.6
No symbol table info available.

Thread 1 (Thread -151100704 (LWP 28410)):
#0  0x002427a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
No symbol table info available.
#1  0x00fbd446 in __nanosleep_nocancel () from /lib/tls/libc.so.6
No symbol table info available.
#2  0x00feb73a in usleep () from /lib/tls/libc.so.6
No symbol table info available.
#3  0x005b520e in TV::PlayFromRecorder (this=0x84b11b8, recordernum=2)
     at tv_play.cpp:551
         retval = 0
#4  0x08069682 in startTV () at main.cpp:270
         tv = (class TV *) 0x84b11b8
---Type <return> to continue, or q <return> to quit---
         timer = {ds = 2136705}
         tryTV = false
         tryRecorder = true
         quitAll = false
         showDialogs = true
#5  0x08069963 in TVMenuCallback (data=0x8447a40, selection=@0x845efc0)
     at main.cpp:348
         sel = {static null = {
     static null = <same as static member of an already seen type>,
     d = 0x8379070, static shared_null = 0x8379070}, d = 0x84c1bf0,
   static shared_null = 0x8379070}
#6  0x009f350d in ThemedMenuPrivate::handleAction (this=0x845eec8,
     action=@0x849b3b8) at themedmenu.cpp:2516
No locals.
#7  0x009f171c in ThemedMenuPrivate::keyPressHandler (this=0x845eec8,
     e=0xfef0a0a0) at themedmenu.cpp:2303
         it = {node = 0x849b3b0}
         action = {static null = {
     static null = <same as static member of an already seen type>,
     d = 0x8379070, static shared_null = 0x8379070}, d = 0x84627b8,
   static shared_null = 0x8379070}
         i = 0
         lastbutton = (ThemedButton *) 0x84a0ea0
---Type <return> to continue, or q <return> to quit---
         oldrow = 0
         handled = true
         actions = {<QValueList<QString>> = {sh = 0x84c1af0}, <No data 
fields>}
#8  0x009f4b01 in ThemedMenu::keyPressEvent (this=0x845b010, 
e=0xfef0a0a0)
     at themedmenu.cpp:2710
No locals.
#9  0x0684d305 in QWidget::event () from 
/usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#10 0x067bacdf in QApplication::internalNotify ()
    from /usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#11 0x067ba7d4 in QApplication::notify ()
    from /usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#12 0x00a5d454 in MythMainWindow::keyPressEvent (this=0x84539a0, 
e=0xfef0a0a0)
     at mythdialogs.cpp:668
         current = (struct QWidget *) 0x845b010
#13 0x0684d305 in QWidget::event () from 
/usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#14 0x067bacdf in QApplication::internalNotify ()
    from /usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#15 0x067ba7d4 in QApplication::notify ()
---Type <return> to continue, or q <return> to quit---
    from /usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#16 0x06752a20 in QETWidget::translateKeyEvent ()
    from /usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#17 0x0674e790 in QApplication::x11ProcessEvent ()
    from /usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#18 0x06765494 in QEventLoop::processEvents ()
    from /usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#19 0x067ccf28 in QEventLoop::enterLoop ()
    from /usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#20 0x067baf91 in QApplication::enter_loop ()
    from /usr/lib/qt-3.3/lib/libqt-mt.so.3
No symbol table info available.
#21 0x00a5e987 in MythDialog::exec (this=0x845b010) at 
mythdialogs.cpp:961
         res = 10873100
#22 0x0806a860 in RunMenu (themedir=
       {static null = {static null = <same as static member of an 
already seen ty pe>, d = 0x8379070, static shared_null = 0x8379070}, d 
= 0x8461b30, static share d_null = 0x8379070}) at main.cpp:504
---Type <return> to continue, or q <return> to quit---
         exitstatus = 0
#23 0x0806f581 in main (argc=1, argv=0xfef0a7d4) at main.cpp:1034
         lcd_host = {static null = {
     static null = <same as static member of an already seen type>,
     d = 0x8379070, static shared_null = 0x8379070}, d = 0x84537e8,
   static shared_null = 0x8379070}
         lcd_port = 13666
         a = <incomplete type>
         logfile = {static null = {
     static null = <same as static member of an already seen type>,
     d = 0x8379070, static shared_null = 0x8379070}, d = 0x8447550,
   static shared_null = 0x8379070}
         verboseString = {static null = {
     static null = <same as static member of an already seen type>,
     d = 0x8379070, static shared_null = 0x8379070}, d = 0x8447868,
   static shared_null = 0x8379070}
         pluginname = {static null = {
     static null = <same as static member of an already seen type>,
     d = 0x8379070, static shared_null = 0x8379070}, d = 0x8447880,
   static shared_null = 0x8379070}
         finfo = {fn = {static null = {
       static null = <same as static member of an already seen type>,
       d = 0x8379070, static shared_null = 0x8379070}, d = 0x8447898,
---Type <return> to continue, or q <return> to quit---
     static shared_null = 0x8379070}, fic = 0x0, cache = true, symLink = 
false}
         binname = {static null = {
     static null = <same as static member of an already seen type>,
     d = 0x8379070, static shared_null = 0x8379070}, d = 0x84478b0,
   static shared_null = 0x8379070}
         logfd = -1
         fileprefix = {static null = {
     static null = <same as static member of an already seen type>,
     d = 0x8379070, static shared_null = 0x8379070}, d = 0x8447970,
   static shared_null = 0x8379070}
         dir = <incomplete type>
         priv_thread = 61279152
         status = 0
         themename = {static null = {
     static null = <same as static member of an already seen type>,
     d = 0x8379070, static shared_null = 0x8379070}, d = 0x84cdc38,
   static shared_null = 0x8379070}
         randomtheme = false
         themedir = {static null = {
     static null = <same as static member of an already seen type>,
     d = 0x8379070, static shared_null = 0x8379070}, d = 0x8461b30,
   static shared_null = 0x8379070}
         mainWindow = (class MythMainWindow *) 0x84539a0
---Type <return> to continue, or q <return> to quit---
         pmanager = (MythPluginManager *) 0x8459430
         mon = (class MediaMonitor *) 0x84cc950
         exitstatus = 3
#0  0x06ab3899 in QMutex::lock () from /usr/lib/qt-3.3/lib/libqt-mt.so.3