[mythtv] Freezes on 64bit when starting recordings or LiveTV

Sun Mar 20 18:56:26 UTC 2005

Hi,

It is not possible to watch recordings (or LiveTV) on debian64. This
problem is already described in "[mythtv-users] MytvTV Frontend
Freezes (seemingly no errors)"
(http://www.gossamer-threads.com/lists/mythtv/users/114125 ). There
are also some debian64 users describing the same problem in the
mythtalk forum (http://www.mythtvtalk.com/forum/viewtopic.php?t=699&start=0
).

The short description: 
- mythtv is recording without any problems
- the recorded mpeg2 files can be played with mplayer
- mythvideo and mythdvd work great in myth
- when I press enter to start livetv or a recording the screen turns
black and nothing more happens, there are no errors in the
back/frontend logs (tried with -v all), only alt-tab and ctrl-C helps.
- it also freezes in the recording list view when preview is activated
- it's freezing when I'm trying to watch the analog recordings from my
bttv card so that's not capture card or format related.
- I've tested all frontend and backend options without success
(fullscreen, libmpeg, audio buffer....)
- I'm sometimes able to watch the recordings when I'm starting the
frontend as root, it's absolutely not working when I start it as root.

My system: Athlon64 3000+ with NVidia 5200 (problem occurs with nvidia
66xx and 77xx), DVB-t, 0.17+CVS, snd_via82xx sound module (I've used
OSS and Alsa in Myth without success).

The full backtrace ("thread apply all bt full") is quite big (it's
partly attached). I've stopped copying it after 1000 of lines. After
it it's only showing thousands of lines like this:

#1354 0x00000133830f3b9a in ?? ()
No symbol table info available.

Here's the output of bt only in gdb:

(gdb) run
Starting program: /usr/bin/mythfrontend
[Thread debugging using libthread_db enabled]
[New Thread 46912564298848 (LWP 22998)]
2005-03-20 19:45:11.750 New DB connection, total: 1
2005-03-20 19:45:11.791 Using screen 0, 1280x1024 at 0,0
[New Thread 1082128752 (LWP 23009)]
2005-03-20 19:45:11.803 mythfrontend version: 0.17.20050223-1 www.mythtv.org
2005-03-20 19:45:11.803 Enabled verbose msgs : important general
2005-03-20 19:45:12.510 Switching to square mode (MythCenter)
[New Thread 1090517360 (LWP 23012)]
[New Thread 1098905968 (LWP 23013)]
2005-03-20 19:45:13.793 New DB connection, total: 2
2005-03-20 19:45:13.793 Joystick disabled.
[Thread 1098905968 (LWP 23013) exited]
2005-03-20 19:45:14.162 Registering Internal as a media playback plugin.
2005-03-20 19:45:18.033 All Programs
2005-03-20 19:45:19.720 Connecting to backend server: 127.0.0.1:6543
(try 1 of 5)
2005-03-20 19:45:19.728 Using protocol version 14
[New Thread 1098905968 (LWP 23026)]
[New Thread 1107294576 (LWP 23027)]
[New Thread 1115683184 (LWP 23028)]

Program received signal SIGINT, Interrupt.
[Switching to Thread 46912564298848 (LWP 22998)]
0x00002aaaad8182b5 in nanosleep () from /lib/libc.so.6
(gdb) bt
#0  0x00002aaaad8182b5 in nanosleep () from /lib/libc.so.6
#1  0x00002aaaad839c48 in usleep () from /lib/libc.so.6
#2  0x0000000000445d5b in PlaybackBox::play (this=0x7fffffffe0f0,
rec=0xc84260) at playbackbox.cpp:1638
#3  0x0000000000444f5a in PlaybackBox::playSelected
(this=0x7fffffffe0f0) at playbackbox.cpp:1427
#4  0x000000000044c41e in PlaybackBox::doPlay (this=0x7fffffffe0f0) at
playbackbox.cpp:2334
#5  0x00000000004c7b7b in PlaybackBox::qt_invoke (this=0x7fffffffe0f0,
_id=78, _o=0x7fffffffd6b0) at moc_playbackbox.cpp:314
#6  0x00002aaaac91bf83 in QObject::activate_signal () from
/usr/lib/libqt-mt.so.3
#7  0x00002aaaac91bddc in QObject::activate_signal () from
/usr/lib/libqt-mt.so.3
#8  0x00002aaaacbdc234 in QButton::pressed () from /usr/lib/libqt-mt.so.3
#9  0x00002aaaabcbd5ea in MythPushButton::keyPressEvent
(this=0xc6ab00, e=0x7fffffffdc10) at mythwidgets.cpp:905
#10 0x00002aaaac949f65 in QWidget::event () from /usr/lib/libqt-mt.so.3
#11 0x00002aaaac8cb792 in QApplication::internalNotify () from
/usr/lib/libqt-mt.so.3
#12 0x00002aaaac8cb3dc in QApplication::notify () from /usr/lib/libqt-mt.so.3
#13 0x00002aaaac870543 in QETWidget::translateKeyEvent () from
/usr/lib/libqt-mt.so.3
#14 0x00002aaaac86c999 in QApplication::x11ProcessEvent () from
/usr/lib/libqt-mt.so.3
#15 0x00002aaaac880985 in QEventLoop::processEvents () from
/usr/lib/libqt-mt.so.3
#16 0x00002aaaac8daee4 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#17 0x00002aaaac8cb975 in QApplication::enter_loop () from
/usr/lib/libqt-mt.so.3
#18 0x00002aaaabd53f67 in MythDialog::exec (this=0x7fffffffe0f0) at
mythdialogs.cpp:959
#19 0x00000000004298b0 in startPlayback () at main.cpp:188
#20 0x000000000042a03a in TVMenuCallback (data=0x713a70,
selection=@0xc92138) at main.cpp:350
#21 0x00002aaaabcec386 in ThemedMenuPrivate::handleAction
(this=0xc92000, action=@0xd31dc0) at themedmenu.cpp:2465
#22 0x00002aaaabceaab5 in ThemedMenuPrivate::keyPressHandler
(this=0xc92000, e=0x7fffffffefe0) at themedmenu.cpp:2294
#23 0x00002aaaabced872 in ThemedMenu::keyPressEvent (this=0xc119d0,
e=0x7fffffffefe0) at themedmenu.cpp:2659
#24 0x00002aaaac949f65 in QWidget::event () from /usr/lib/libqt-mt.so.3
#25 0x00002aaaac8cb792 in QApplication::internalNotify () from
/usr/lib/libqt-mt.so.3
#26 0x00002aaaac8cb3dc in QApplication::notify () from /usr/lib/libqt-mt.so.3
#27 0x00002aaaac870543 in QETWidget::translateKeyEvent () from
/usr/lib/libqt-mt.so.3
#28 0x00002aaaac86c999 in QApplication::x11ProcessEvent () from
/usr/lib/libqt-mt.so.3
#29 0x00002aaaac880985 in QEventLoop::processEvents () from
/usr/lib/libqt-mt.so.3
#30 0x00002aaaac8daee4 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#31 0x00002aaaac8cb975 in QApplication::enter_loop () from
/usr/lib/libqt-mt.so.3
#32 0x00002aaaabd53f67 in MythDialog::exec (this=0xc119d0) at
mythdialogs.cpp:959
#33 0x000000000042acba in RunMenu (themedir=
      {static null = {static null = <same as static member of an
already seen type>, d = 0x635da0, static shared_null = 0x635da0}, d =
0xb0b950, static shared_null = 0x635da0}) at main.cpp:504
#34 0x000000000042ef8c in main (argc=1, argv=0x7ffffffff9c8) at main.cpp:1034
#35 0x00002aaaad78a3c1 in __libc_start_main () from /lib/libc.so.6
#36 0x0000000000428aea in _start () at ../sysdeps/x86_64/elf/start.S:96
#37 0x00007ffffffff9b8 in ?? ()
#38 0x0000000000000000 in ?? ()
#39 0x0000000000000001 in ?? ()
#40 0x00007ffffffffbf4 in ?? ()
#41 0x0000000000000000 in ?? ()
#42 0x00007ffffffffc0a in ?? ()
#43 0x00007ffffffffc1d in ?? ()
#44 0x00007ffffffffc31 in ?? ()
#45 0x00007ffffffffc4c in ?? ()
#46 0x00007ffffffffc5c in ?? ()
#47 0x00007ffffffffc67 in ?? ()
#48 0x00007ffffffffcb3 in ?? ()
#49 0x00007ffffffffd11 in ?? ()
#50 0x00007ffffffffd2c in ?? ()
#51 0x00007ffffffffd81 in ?? ()
#52 0x00007ffffffffd93 in ?? ()
#53 0x00007ffffffffda9 in ?? ()
#54 0x00007ffffffffdb5 in ?? ()
#55 0x00007ffffffffdc3 in ?? ()
#56 0x00007ffffffffdf0 in ?? ()
#57 0x00007ffffffffe1e in ?? ()
#58 0x00007ffffffffe2a in ?? ()
#59 0x00007ffffffffe38 in ?? ()
#60 0x00007ffffffffe4c in ?? ()
#61 0x00007ffffffffe77 in ?? ()
#62 0x00007ffffffffeec in ?? ()
#63 0x00007fffffffff04 in ?? ()
#64 0x00007fffffffff10 in ?? ()
#65 0x00007fffffffff33 in ?? ()
#66 0x00007fffffffff68 in ?? ()
#67 0x00007fffffffff78 in ?? ()
#68 0x00007fffffffff81 in ?? ()
#69 0x00007fffffffff93 in ?? ()
#70 0x00007fffffffff9b in ?? ()
#71 0x00007fffffffffa7 in ?? ()
#72 0x00007fffffffffbd in ?? ()
#73 0x00007fffffffffcc in ?? ()
#74 0x00007fffffffffd7 in ?? ()
#75 0x0000000000000000 in ?? ()
#76 0x0000000000000010 in ?? ()
#77 0x00000000078bfbff in ?? ()
#78 0x0000000000000006 in ?? ()
#79 0x0000000000001000 in ?? ()
#80 0x0000000000000011 in ?? ()
#81 0x0000000000000064 in ?? ()
#82 0x0000000000000003 in ?? ()
#83 0x0000000000400040 in ?? ()
#84 0x0000000000000004 in ?? ()
#85 0x0000000000000038 in ?? ()
#86 0x0000000000000005 in ?? ()
#87 0x0000000000000008 in ?? ()
#88 0x0000000000000007 in ?? ()
#89 0x00002aaaaaaab000 in ?? ()
#90 0x0000000000000008 in ?? ()
#91 0x0000000000000000 in ?? ()
#92 0x0000000000000009 in ?? ()
#93 0x0000000000428ac0 in ?? ()
#94 0x000000000000000b in ?? ()
#95 0x00000000000003e8 in ?? ()
#96 0x000000000000000c in ?? ()
#97 0x00000000000003e8 in ?? ()
#98 0x000000000000000d in ?? ()
#99 0x00000000000003e8 in ?? ()
#100 0x000000000000000e in ?? ()
#101 0x00000000000003e8 in ?? ()
#102 0x0000000000000017 in ?? ()
#103 0x0000000000000000 in ?? ()
#104 0x000000000000000f in ?? ()
#105 0x00007ffffffffbed in ?? ()
#106 0x0000000000000000 in ?? ()
#107 0x0000000000000000 in ?? ()
#108 0x3638780000000000 in ?? ()
#109 0x7273752f0034365f in ?? ()
#110 0x74796d2f6e69622f in ?? ()
#111 0x6e65746e6f726668 in ?? ()
#112 0x47415f4853530064 in ?? ()
#113 0x3d4449505f544e45 in ?? ()
#114 0x45444b0035323434 in ?? ()
#115 0x454849544c554d5f in ?? ()
#116 0x65736c61663d4441 in ?? ()
#117 0x544e4f435f4d4400 in ?? ()
#118 0x7261762f3d4c4f52 in ?? ()
#119 0x6d64782f6e75722f in ?? ()
#120 0x4c454853006c7463 in ?? ()
#121 0x622f6e69622f3d4c in ?? ()
#122 0x4d52455400687361 in ?? ()
#123 0x58006d726574783d in ?? ()
#124 0x47414e414d5f4d44 in ?? ()
#125 0x2f7261762f3d4445 in ?? ()
#126 0x636d64782f6e7572 in ?? ()
#127 0x74636d64782f6c74 in ?? ()
#128 0x79616d2c303a2d6c in ?? ()
#129 0x6e6679616d2c6473 in ?? ()
#130 0x6d2c64656863732c in ?? ()
#131 0x6c633d646f687465 in ?? ()
#132 0x75612c6369737361 in ?? ()
#133 0x5f324b5447006f74 in ?? ()
#134 0x53454c49465f4352 in ?? ()
#135 0x74672f6374652f3d in ?? ()
#136 0x74672f302e322d6b in ?? ()
#137 0x6d6f682f3a63726b in ?? ()
#138 0x7369766165622f65 in ?? ()
#139 0x2d63726b74672e2f in ?? ()
#140 0x6d6f682f3a302e32 in ?? ()
#141 0x7369766165622f65 in ?? ()
#142 0x68732f65646b2e2f in ?? ()
#143 0x666e6f632f657261 in ?? ()
#144 0x63726b74672f6769 in ?? ()
#145 0x3d42494c5f534700 in ?? ()
#146 0x65622f656d6f682f in ?? ()
#147 0x6f662e2f73697661 in ?? ()
#148 0x5f4b54470073746e in ?? ()
#149 0x53454c49465f4352 in ?? ()
#150 0x74672f6374652f3d in ?? ()
#151 0x3a63726b74672f6b in ?? ()
#152 0x65622f656d6f682f in ?? ()
#153 0x74672e2f73697661 in ?? ()
#154 0x6d6f682f3a63726b in ?? ()
#155 0x7369766165622f65 in ?? ()
#156 0x68732f65646b2e2f in ?? ()
#157 0x666e6f632f657261 in ?? ()
#158 0x63726b74672f6769 in ?? ()
#159 0x49574f444e495700 in ?? ()
#160 0x3130363339323d44 in ?? ()
#161 0x465f45444b003533 in ?? ()
#162 0x535345535f4c4c55 in ?? ()
#163 0x657572743d4e4f49 in ?? ()
#164 0x65623d5245535500 in ?? ()
#165 0x5543580073697661 in ?? ()
#166 0x5a49535f524f5352 in ?? ()
#167 0x415f485353003d45 in ?? ()
#168 0x4b434f535f485455 in ?? ()
#169 0x73732f706d742f3d in ?? ()
#170 0x504c497947782d68 in ?? ()
#171 0x6567612f32393334 in ?? ()
#172 0x00323933342e746e in ?? ()
#173 0x5f4e4f4953534553 in ?? ()
#174 0x3d524547414e414d in ?? ()
#175 0x36632f6c61636f6c in ?? ()
#176 0x2e2f706d742f3a34 in ?? ()
#177 0x78696e752d454349 in ?? ()
#178 0x4f4300373934342f in ?? ()
#179 0x34313d534e4d554c in ?? ()
#180 0x5652455350580032 in ?? ()
#181 0x003d5453494c5245 in ?? ()
#182 0x752f3d5245474150 in ?? ()
#183 0x6d2f6e69622f7273 in ?? ()
#184 0x534e4f4b0074736f in ?? ()
#185 0x504f43445f454c4f in ?? ()
#186 0x666552504f43443d in ?? ()
#187 0x656c6f736e6f6b28 in ?? ()
#188 0x6f6b2c303235342d in ?? ()
#189 0x500029656c6f736e in ?? ()
#190 0x6d6f682f3d485441 in ?? ()
#191 0x7369766165622f65 in ?? ()
#192 0x622f747369642e2f in ?? ()
#193 0x6e6962732f3a6e69 in ?? ()
#194 0x752f3a6e69622f3a in ?? ()
#195 0x3a6e6962732f7273 in ?? ()
#196 0x6e69622f7273752f in ?? ()
#197 0x31582f7273752f3a in ?? ()
#198 0x3a6e69622f365231 in ?? ()
#199 0x636f6c2f7273752f in ?? ()
#200 0x3a6e6962732f6c61 in ?? ()
#201 0x636f6c2f7273752f in ?? ()
#202 0x2f3a6e69622f6c61 in ?? ()
#203 0x656d61672f727375 in ?? ()
#204 0x4b534544002e3a73 in ?? ()
#205 0x535345535f504f54 in ?? ()
#206 0x616665643d4e4f49 in ?? ()
#207 0x622f3d5f00746c75 in ?? ()
#208 0x00687361622f6e69 in ?? ()
#209 0x6d6f682f3d445750 in ?? ()
#210 0x7369766165622f65 in ?? ()
#211 0x3274616863782e2f in ?? ()
#212 0x616f6c6e776f642f in ?? ()
#213 0x4f534e4f4b007364 in ?? ()
#214 0x5f504f43445f454c in ?? ()
#215 0x3d4e4f4953534553 in ?? ()
#216 0x28666552504f4344 in ?? ()
#217 0x2d656c6f736e6f6b in ?? ()
#218 0x7365732c30323534 in ?? ()
#219 0x0029322d6e6f6973 in ?? ()
#220 0x5f65643d474e414c in ?? ()
#221 0x006f727565404544 in ?? ()
#222 0x38333d53454e494c in ?? ()
#223 0x682f3d454d4f4800 in ?? ()
#224 0x766165622f656d6f in ?? ()
#225 0x4c564c4853007369 in ?? ()
#226 0x55474e414c00323d in ?? ()
#227 0x580065643d454741 in ?? ()
#228 0x545f524f53525543 in ?? ()
#229 0x6665643d454d4548 in ?? ()
#230 0x474f4c00746c7561 in ?? ()
#231 0x6165623d454d414e in ?? ()
#232 0x5053494400736976 in ?? ()
#233 0x4300303a3d59414c in ?? ()
#234 0x4d524554524f4c4f in ?? ()
#235 0x622f7273752f003d in ?? ()
#236 0x666874796d2f6e69 in ?? ()
#237 0x00646e65746e6f72 in ?? ()
#238 0x0000000000000000 in ?? ()
Cannot access memory at address 0x800000000000
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