Analog channel scan non-functional

[anonymous]

this issue didnt happen in 20410 reproduce: 1. fresh install of mythtv 2. run mythtv-setup and configure 1.general to 4. 3. in 4. click the scan channels setup display freezes and crash:

attaching mythtv-setup -v channel,record,siparser,channelscan

last lines in gdb read: 2009-05-07 23:49:37.322 ChannelScanSM(/dev/v4l/video0): Transport Scan Item 'try-all 914' #915

mplexid(0) standard(dvb) sourceid(1) UseTimer(0) scanning(0) timeoutTune(1000 msec) frequency(958750000) constellation(16)

inv(2) bandwidth(3) hp(9) lp(9) trans_mode(2) guard_int(4) hierarchy(4)

offset[0..2]: 0 0 0

2009-05-07 23:49:37.322 ChannelScanSM(/dev/v4l/video0): Tuning to try-all 1 mplexid(0) 2009-05-07 23:49:37.323 Channel(/dev/v4l/video0): Tune(44000000, Television, , dvb) 2009-05-07 23:49:38.315 Channel(/dev/v4l/video0)::Tune(): Frequency is now 44000000 2009-05-07 23:49:38.316 SM(/dev/v4l/video0)::Start: begin [New Thread 0xb29ffb90 (LWP 32472)] 2009-05-07 23:49:38.317 SM(/dev/v4l/video0)::Start: end

Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb3321b90 (LWP 32471)] 0xb7c190e9 in DTVSignalMonitor::GetScanStreamData (this=0x0)

at dtvsignalmonitor.cpp:484

484 dtvsignalmonitor.cpp: No such file or directory.

in dtvsignalmonitor.cpp

(gdb)

[danielk]

Backtrace missing again.. please read the TicketHowTo _before_ submitting tickets.

[Janne Grunau]

not sure if a backtrace is necessary, the problem seems to be that DVB scan is done with a v4l device

[nivw2008@…]

I dont see this issue of a crash while scanning for analog in 20423. I can't build 20430 for a compilation error:

g++ -c -pipe -march=prescott -fomit-frame-pointer -O3 -DNDEBUG -g -Wall -Wno-switch -Wpointer-arith -Wredundant-decls -Wno-non-virtual-dtor -funit-at-a-time -D__STDC_CONSTANT_MACROS -D_REENTRANT -DMMX -Di386 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -DUSING_X11 -DUSING_XV -DUSING_IVTV -DUSING_XVMC -DUSING_XVMC_VLD -DUSING_XRANDR -DUSING_OPENGL_VSYNC -DUSING_OPENGL_VIDEO -DUSING_ALSA -DUSING_OSS -DQT_SQL_LIB -DQT_XML_LIB -DQT_OPENGL_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtOpenGL -I/usr/include/qt4/QtXml -I/usr/include/qt4/QtSql -I/usr/include/qt4 -I/usr/include -I../.. -I../../libs -I../../libs/libmyth -I../../libs/libmythtv -I../../libs/libavutil -I../../libs/libavformat -I../../libs/libavcodec -I../../libs/libmythupnp -I../../libs/libmythui -I../../libs/libmythlivemedia -I../../libs/libmythdb -I../../libmythhdhomerun -I../../libs/libmythdvdnav -I/usr/X11R6/include -I. -I. -o moc_guidegrid.o moc_guidegrid.cpp
distcc g++ -Wl,-O1 -o mythfrontend version.o main.o playbackbox.o viewscheduled.o globalsettings.o manualschedule.o programrecpriority.o channelrecpriority.o statusbox.o networkcontrol.o mediarenderer.o mythfexml.o playbackboxlistitem.o custompriority.o mythappearance.o exitprompt.o proglist.o action.o actionset.o mythcontrols.o keybindings.o keygrabber.o mythosdmenueditor.o progfind.o guidegrid.o moc_playbackbox.o moc_viewscheduled.o moc_globalsettings.o moc_manualschedule.o moc_programrecpriority.o moc_channelrecpriority.o moc_statusbox.o moc_networkcontrol.o moc_custompriority.o moc_mythappearance.o moc_exitprompt.o moc_proglist.o moc_mythcontrols.o moc_keygrabber.o moc_mythosdmenueditor.o moc_progfind.o moc_guidegrid.o    -L/usr/lib/qt4 -L../../libs/libmyth -L../../libs/libmythtv -L../../libs/libavutil -L../../libs/libavcodec -L../../libs/libavformat -L../../libs/libmythdb -L../../libs/libmythui -L../../libs/libmythupnp -lmythtv-0.22 -lmythavformat-0.22 -lmythavutil-0.22 -lmythavcodec-0.22 -lmythupnp-0.22 -lmyth-0.22 -lmythui-0.22 -lmythdb-0.22 -L../../libs/libmythlivemedia -lmythlivemedia-0.22 -L../../libs/libmythfreemheg -lmythfreemheg-0.22 -L../../libs/libmythhdhomerun -lmythhdhomerun-0.22 -L/usr/X11R6/lib -lXinerama -lXv -lXxf86vm -lXvMCW -lXvMC -L/usr/lib -lQtSql -L/usr/lib/mysql -L/usr/lib/qt4 -pthread -pthread -lQtXml -pthread -pthread -lQtOpenGL -lGLU -lGL -pthread -pthread -pthread -pthread -pthread -pthread -pthread -pthread -lQtGui -pthread -lpng -lfreetype -lgobject-2.0 -lSM -lICE -pthread -pthread -lXrender -lXrandr -lfontconfig -lXext -lX11 -lQtNetwork -pthread -pthread -lQtCore -lz -lm -pthread -lgthread-2.0 -lrt -lglib-2.0 -lpthread -ldl
../../libs/libmythtv/libmythtv-0.22.so: undefined reference to `DVBChannel::GetRotor() const'
../../libs/libmythtv/libmythtv-0.22.so: undefined reference to `DVBChannel::SetPMT(ProgramMapTable const*)'
../../libs/libmythtv/libmythtv-0.22.so: undefined reference to `typeinfo for DVBChannel'
collect2: ld returned 1 exit status
distcc[29838] ERROR: compile (null) on localhost failed
make[2]: *** [mythfrontend] Error 1
make[2]: Leaving directory `/var/tmp/portage/media-tv/mythtv-0.22_alpha20430/work/mythtv-0.22/programs/mythfrontend'
make[1]: *** [sub-mythfrontend-make_default] Error 2
make[1]: Leaving directory `/var/tmp/portage/media-tv/mythtv-0.22_alpha20430/work/mythtv-0.22/programs'
make: *** [sub-programs-make_default-ordered] Error 2

so this issue was int reduced after 20423 and was not fix until current 20503

[anonymous]

20428 also fails to cmpile so I think the bug was intreduced between 20423 and 20428

---

20428 compile error: distcc g++ -c -pipe -march=prescott -fomit-frame-pointer -O3 -DNDEBUG -g -Wall -Wno-switch -Wpointer-arith -Wredundant-decls -Wno-non-virtual-dtor -funit-at-a-time -DSTDC_CONSTANT_MACROS -D_REENTRANT -DMMX -Di386 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -DUSING_X11 -DUSING_XV -DUSING_IVTV -DUSING_XVMC -DUSING_XVMC_VLD -DUSING_XRANDR -DUSING_OPENGL_VSYNC -DUSING_OPENGL_VIDEO -DUSING_ALSA -DUSING_OSS -DQT_SQL_LIB -DQT_XML_LIB -DQT_OPENGL_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtOpenGL -I/usr/include/qt4/QtXml -I/usr/include/qt4/QtSql -I/usr/include/qt4 -I/usr/include -I../.. -I../../libs -I../../libs/libmyth -I../../libs/libmythtv -I../../libs/libavutil -I../../libs/libavformat -I../../libs/libavcodec -I../../libs/libmythupnp -I../../libs/libmythui -I../../libs/libmythlivemedia -I../../libs/libmythdb -I../../libmythhdhomerun -I../../libs/libmythdvdnav -I/usr/X11R6/include -I. -I. -o moc_guidegrid.o moc_guidegrid.cpp distcc g++ -Wl,-O1 -o mythfrontend version.o main.o playbackbox.o viewscheduled.o globalsettings.o manualschedule.o programrecpriority.o channelrecpriority.o statusbox.o networkcontrol.o mediarenderer.o mythfexml.o playbackboxlistitem.o custompriority.o mythappearance.o exitprompt.o proglist.o action.o actionset.o mythcontrols.o keybindings.o keygrabber.o mythosdmenueditor.o progfind.o guidegrid.o moc_playbackbox.o moc_viewscheduled.o moc_globalsettings.o moc_manualschedule.o moc_programrecpriority.o moc_channelrecpriority.o moc_statusbox.o moc_networkcontrol.o moc_custompriority.o moc_mythappearance.o moc_exitprompt.o moc_proglist.o moc_mythcontrols.o moc_keygrabber.o moc_mythosdmenueditor.o moc_progfind.o moc_guidegrid.o -L/usr/lib/qt4 -L../../libs/libmyth -L../../libs/libmythtv -L../../libs/libavutil -L../../libs/libavcodec -L../../libs/libavformat -L../../libs/libmythdb -L../../libs/libmythui -L../../libs/libmythupnp -lmythtv-0.22 -lmythavformat-0.22 -lmythavutil-0.22 -lmythavcodec-0.22 -lmythupnp-0.22 -lmyth-0.22 -lmythui-0.22 -lmythdb-0.22 -L../../libs/libmythlivemedia -lmythlivemedia-0.22 -L../../libs/libmythfreemheg -lmythfreemheg-0.22 -L../../libs/libmythhdhomerun -lmythhdhomerun-0.22 -L/usr/X11R6/lib -lXinerama -lXv -lXxf86vm -lXvMCW -lXvMC -L/usr/lib -lQtSql -L/usr/lib/mysql -L/usr/lib/qt4 -pthread -pthread -lQtXml -pthread -pthread -lQtOpenGL -lGLU -lGL -pthread -pthread -pthread -pthread -pthread -pthread -pthread -pthread -lQtGui -pthread -lpng -lfreetype -lgobject-2.0 -lSM -lICE -pthread -pthread -lXrender -lXrandr -lfontconfig -lXext -lX11 -lQtNetwork -pthread -pthread -lQtCore -lz -lm -pthread -lgthread-2.0 -lrt -lglib-2.0 -lpthread -ldl ../../libs/libmythtv/libmythtv-0.22.so: undefined reference to `DVBChannel::GetRotor() const' ../../libs/libmythtv/libmythtv-0.22.so: undefined reference to `DVBChannel::SetPMT(ProgramMapTable const*)' ../../libs/libmythtv/libmythtv-0.22.so: undefined reference to `typeinfo for DVBChannel' collect2: ld returned 1 exit status distcc[25494] ERROR: compile (null) on localhost failed make[2]: * [mythfrontend] Error 1 make[2]: Leaving directory `/var/tmp/portage/media-tv/mythtv-0.22_alpha20428/work/mythtv-0.22/programs/mythfrontend' make[1]: * [sub-mythfrontend-make_default] Error 2 make[1]: Leaving directory `/var/tmp/portage/media-tv/mythtv-0.22_alpha20428/work/mythtv-0.22/programs' make: * [sub-programs-make_default-ordered] Error 2

[anonymous]

20425 works fine

[niv <nivw2008@…>]

gdb /usr/bin/mythtv-setup -x gdbcommands

GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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.
This GDB was configured as "i686-pc-linux-gnu"...
Function "qFatal" not defined.
Breakpoint 1 (qFatal) pending.
[Thread debugging using libthread_db enabled]
[New Thread 0xb46bb710 (LWP 5990)]
[New Thread 0xb413ab90 (LWP 6000)]
[Thread 0xb413ab90 (LWP 6000) exited]
[New Thread 0xb413ab90 (LWP 6045)]
[New Thread 0xb31d6b90 (LWP 6046)]
[New Thread 0xb29d5b90 (LWP 6049)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb31d6b90 (LWP 6046)]
0xb7c2b775 in DTVSignalMonitor::GetScanStreamData (this=0x0) at dtvsignalmonitor.cpp:484
484	dtvsignalmonitor.cpp: No such file or directory.
	in dtvsignalmonitor.cpp

Thread 5 (Thread 0xb29d5b90 (LWP 6049)):
#0  0xffffe424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb559d456 in nanosleep () from /lib/libc.so.6
No symbol table info available.
#2  0xb55cb78a in usleep () from /lib/libc.so.6
No symbol table info available.
#3  0xb7c2679f in SignalMonitor::MonitorLoop (this=0xad8f628) at signalmonitor.cpp:311
No locals.
#4  0xb7c25d96 in SignalMonitor::SpawnMonitorLoop (self=0xad8f628) at signalmonitor.cpp:334
No locals.
#5  0xb576118b in start_thread () from /lib/libpthread.so.0
No locals.
#6  0xb55d186e in clone () from /lib/libc.so.6
No symbol table info available.

Thread 4 (Thread 0xb31d6b90 (LWP 6046)):
#0  0xb7c2b775 in DTVSignalMonitor::GetScanStreamData (this=0x0) at dtvsignalmonitor.cpp:484
No locals.
#1  0xb7c43494 in ChannelScanSM::UpdateChannelInfo (this=0xad8f9e8, wait_until_complete=false) at channelscan/channelscan_sm.cpp:479
	sd = (const class ScanStreamData *) 0xb74b4544
	info = (ScannedChannelInfo *) 0xb7f71ff4
	transport_tune_complete = false
	pattmp = {<std::_Vector_base<const ProgramAssociationTable*,std::allocator<const ProgramAssociationTable*> >> = {_M_impl = {<std::allocator<const ProgramAssociationTable*>> = {<__gnu_cxx::new_allocator<const ProgramAssociationTable*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0xb31d60d4, _M_end_of_storage = 0xb7fd3fc4}}, <No data fields>}
	tsid_checked = {{d = 0xb31d60d4, e = 0xb31d60d4}}
	sdttmp = {<std::_Vector_base<const ServiceDescriptionTable*,std::allocator<const ServiceDescriptionTable*> >> = {_M_impl = {<std::allocator<const ServiceDescriptionTable*>> = {<__gnu_cxx::new_allocator<const ServiceDescriptionTable*>> = {<No data fields>}, <No data fields>}, _M_start = 0xb587a9fe, _M_finish = 0xb75062a0, _M_end_of_storage = 0x2a30}}, <No data fields>}
#2  0xb7c466b9 in ChannelScanSM::HandleActiveScan (this=0xad8f9e8) at channelscan/channelscan_sm.cpp:1217
	do_post_insertion = true
#3  0xb7c46b25 in ChannelScanSM::RunScanner (this=0xad8f9e8) at channelscan/channelscan_sm.cpp:1120
No locals.
#4  0xb7c46df7 in ChannelScanSM::SpawnScanner (param=0xad8f9e8) at channelscan/channelscan_sm.cpp:1095
	scanner = (ChannelScanSM *) 0xad8f9e8
#5  0xb576118b in start_thread () from /lib/libpthread.so.0
No locals.
#6  0xb55d186e in clone () from /lib/libc.so.6
No symbol table info available.

Thread 3 (Thread 0xb413ab90 (LWP 6045)):
#0  0xffffe424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb5765b72 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
No locals.
#2  0xb58ad4d0 in QWaitCondition::wait () from /usr/lib/qt4/libQtCore.so.4
No symbol table info available.
#3  0xb7c5cd42 in ScanProgressPopup::exec (this=0xad98850) at channelscan/scanprogresspopup.cpp:176
	mutex = {d = 0xad5caa0}
	locker = {{mtx = 0xb413a311, val = 3021185809}}
#4  0xb7c551a4 in ChannelScannerGUI::RunPopup (this=0xad0d8d0) at channelscan/channelscanner_gui.cpp:188
	ret = 181459152
#5  0xb7c55201 in spawn_popup (tmp=0xad0d8d0) at channelscan/channelscanner_gui.cpp:182
No locals.
#6  0xb576118b in start_thread () from /lib/libpthread.so.0
No locals.
#7  0xb55d186e in clone () from /lib/libc.so.6
No symbol table info available.

Thread 1 (Thread 0xb46bb710 (LWP 5990)):
#0  0xb5980a08 in QEventLoop::exec () from /usr/lib/qt4/libQtCore.so.4
No symbol table info available.
#1  0xb6aea21c in MythDialog::exec (this=0xad0d1e0) at mythdialogs.cpp:178
	eventLoop = <incomplete type>
	res = 3066703860
#2  0xb6ac475b in ConfigurationDialog::exec (this=0x9a2a470, saveOnAccept=false, doLoad=true) at mythconfigdialogs.cpp:175
	dialog = (class MythDialog *) 0xad0d1e0
	ret = 33338400
#3  0xb77b68e2 in CardInput::channelScanner (this=0x9a56700) at videosource.cpp:2422
	srcid = 1
	crdid = 1
	in = {static null = {<No data fields>}, static shared_null = {ref = {_q_value = 5508}, alloc = 0, size = 0, data = 0x8098272, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, static shared_empty = {ref = {_q_value = 711}, alloc = 0, size = 0, data = 0xb5a2b44e, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d = 0x9aee558, static codecForCStrings = 0x0}
	num_channels_before = 38
	cardtype = {static null = {<No data fields>}, static shared_null = {ref = {_q_value = 5508}, alloc = 0, size = 0, data = 0x8098272, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, static shared_empty = {ref = {_q_value = 711}, alloc = 0, size = 0, data = 0xb5a2b44e, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d = 0xabd0c78, static codecForCStrings = 0x0}
	scanwizard = (class ScanWizard *) 0x9a2a468
#4  0xb7d7fd47 in CardInput::qt_metacall (this=0x9a56700, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbfbccb58) at moc_videosource.cpp:1395
No locals.
#5  0xb599247f in QMetaObject::activate () from /usr/lib/qt4/libQtCore.so.4
No symbol table info available.
#6  0xb59929d0 in QMetaObject::activate () from /usr/lib/qt4/libQtCore.so.4
No symbol table info available.
#7  0xb6c0aabb in ButtonSetting::pressed (this=0x99d3660) at moc_settings.cpp:831
No locals.
#8  0xb6c0b048 in ButtonSetting::qt_metacall (this=0x99d3660, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfbccc48) at moc_settings.cpp:818
No locals.
#9  0xb599247f in QMetaObject::activate () from /usr/lib/qt4/libQtCore.so.4
No symbol table info available.
#10 0xb59929d0 in QMetaObject::activate () from /usr/lib/qt4/libQtCore.so.4
No symbol table info available.
#11 0xb6436fdb in QAbstractButton::pressed () from /usr/lib/qt4/libQtGui.so.4
No symbol table info available.
#12 0xb6b0a26a in MythPushButton::keyPressEvent (this=0xa8cc298, e=0xbfbcd174) at mythwidgets.cpp:1217
	action = {static null = {<No data fields>}, static shared_null = {ref = {_q_value = 5508}, alloc = 0, size = 0, data = 0x8098272, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, static shared_empty = {ref = {_q_value = 711}, alloc = 0, size = 0, data = 0xb5a2b44e, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d = 0x9a0a9f0, static codecForCStrings = 0x0}
	i = 0
	handled = false
	actions = {<QList<QString>> = {{p = {static shared_null = {ref = {_q_value = 17295}, alloc = 0, begin = 0, end = 0, sharable = 1, array = {0x0}}, d = 0xabd28e8}, d = 0xabd28e8}}, <No data fields>}
#13 0xb5e9f775 in QWidget::event () from /usr/lib/qt4/libQtGui.so.4
No symbol table info available.
#14 0xb61cd74f in QAbstractButton::event () from /usr/lib/qt4/libQtGui.so.4
No symbol table info available.
#15 0xb625e20b in QPushButton::event () from /usr/lib/qt4/libQtGui.so.4
No symbol table info available.
#16 0xb5e567b4 in QApplicationPrivate::notify_helper () from /usr/lib/qt4/libQtGui.so.4
No symbol table info available.
#17 0xb5e5cf6f in QApplication::notify () from /usr/lib/qt4/libQtGui.so.4
No symbol table info available.
#18 0xb59814ea in QCoreApplication::notifyInternal () from /usr/lib/qt4/libQtCore.so.4
No symbol table info available.
#19 0xb5e56c24 in ?? () from /usr/lib/qt4/libQtGui.so.4
No symbol table info available.
#20 0xbfbd1010 in ?? ()
No symbol table info available.
#21 0x0a8cc298 in ?? ()
No symbol table info available.
#22 0xbfbcd174 in ?? ()
No symbol table info available.
#23 0x00000000 in ?? ()
No symbol table info available.
0xb7c2b775	484	in dtvsignalmonitor.cpp

[anonymous]

bump, without this , I got a frame buffer and this blocks me from using trunk thnaks

[danielk]

(In [21855]) Refs #6530. Disable scan button for analog cards until analog channel scanning is fixed.

[ileturia@…]

Replying to danielk:

(In [21855]) Refs #6530. Disable scan button for analog cards until analog channel scanning is fixed.

Any clues as to when this will be fixed? I have Mythbuntu 9.10 installed with an analog card that used to scan channels perfectly but now it does not anymore... Maybe it would be better to enable the button, as I am not sure it crashes for everyone? It did not in my case...

[anonymous]

Increase the logging level please! Can we get a step-by-step logging for analog scans for troubleshooting this issue?

[bryanpluta@…]

Is there any help that a normal user can be to try to solve this problem? I will provide any log data necessary to assist in fixing this. I have both a PVR500 and HVR 1600, so not having analog channels sucks for me.

[danielk]

(In [23657]) Fixes #6530. Fixes analog scanner regression.