[mythtv-commits] Ticket #11202: channel scanning segfaults on analog tuner of pchdtv5500

[MythTV]

#11202: channel scanning segfaults on analog tuner of pchdtv5500
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 Reporter:  thomas.epperson@…                   |          Owner:  danielk
     Type:  Bug Report - Crash                  |         Status:  new
 Priority:  minor                               |      Milestone:  unknown
Component:  MythTV - Channel Scanner            |        Version:  0.25.2
 Severity:  medium                              |     Resolution:
 Keywords:  pchdtv5500, segfault, channel scan  |  Ticket locked:  0
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Comment (by thomas.epperson@…):

 Replying to [comment:1 thomas.epperson@…]:

 I didn't do that core dump with the right stuff installed.
 Looks like a null pointer to a TVRec object.

 {{{

 Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
 Core was generated by `mythtv-setup'.
 Program terminated with signal 11, Segmentation fault.
 #0  TVRec::IsBusy (this=0x0, busy_input=0x7f20b6dad150, time_buffer=5) at
 tv_rec.cpp:2403
 2403        if (!channel)
 (gdb) bt
 #0  TVRec::IsBusy (this=0x0, busy_input=0x7f20b6dad150, time_buffer=5) at
 tv_rec.cpp:2403
 #1  0x00007f212186a0cf in ChannelBase::IsInputAvailable (this=0x3863fe0,
 inputid=7, mplexid_restriction=@0x7f20b6dad45c: 0)
     at channelbase.cpp:522
 #2  0x00007f2121956140 in V4LChannel::SwitchToInput (this=0x3863fe0,
 inputnum=7, setstarting=false) at v4lchannel.cpp:768
 #3  0x00007f212194f9f4 in V4LChannel::Tune (this=0x3863fe0,
 frequency=55250000, inputname=...) at v4lchannel.cpp:504
 #4  0x00007f212194efcc in V4LChannel::Tune (this=<optimized out>,
 tuning=..., inputname=...) at v4lchannel.cpp:479
 #5  0x00007f212188808d in ChannelScanSM::Tune (this=0x38651d0,
 transport=...) at channelscan/channelscan_sm.cpp:1644
 #6  0x00007f2121888363 in ChannelScanSM::ScanTransport (this=0x38651d0,
 transport=...) at channelscan/channelscan_sm.cpp:1675
 #7  0x00007f21218996ee in ChannelScanSM::HandleActiveScan (this=0x38651d0)
 at channelscan/channelscan_sm.cpp:1586
 #8  0x00007f212189a129 in ChannelScanSM::run (this=0x38651d0) at
 channelscan/channelscan_sm.cpp:1465
 #9  0x00007f2120f7e377 in MThread::run (this=0x38141c0) at mthread.cpp:319
 #10 0x00007f211eef3fcb in ?? () from /usr/lib/x86_64-linux-
 gnu/libQtCore.so.4
 #11 0x00007f211ab37e9a in start_thread () from /lib/x86_64-linux-
 gnu/libpthread.so.0
 #12 0x00007f211e693cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
 #13 0x0000000000000000 in ?? ()

 }}}

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Ticket URL: <http://code.mythtv.org/trac/ticket/11202#comment:2>
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