[mythtv-commits] Ticket #3541: Backend Crashes When Recording From Mux A In The UK (Freeview / DVB-T)

[MythTV]

#3541: Backend Crashes When Recording From Mux A In The UK (Freeview / DVB-T)
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 Reporter:  anonymous  |       Owner:  ijr    
     Type:  defect     |      Status:  new    
 Priority:  minor      |   Milestone:  unknown
Component:  mythtv     |     Version:  head   
 Severity:  medium     |  
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 I am experiencing problems recording from Mux A in the UK (Freeview) using
 my PCI DVB-T cards (Lifeview FlyDVB-T) - channels include abc1, Five, Five
 US, Five Life etc even after the fix specified in ticket 2664
 http://svn.mythtv.org/trac/ticket/2664 (opened this new ticket as unsure
 whether its a new/related problem or not).

 My other multiplexes appear fine (left them recording for >2 hours) and I
 have tried using tzap to see if there is any obvious problems but
 according to the Wiki's tzap page it seems to be outputting perfectly fine
 SNR/BER and UNC values.

 The backend is crashing without any obvious reason (even when trying -v
 all) apart from from the error line PESPacket: Failed CRC check 0x0 !=
 0xffffffff for StreamID = 0x0 is always present in the backend.log file
 just before the backend crashes.  If there is one recording happening I
 get one occurrence or if like the sample log file below there were three
 recordings happening I get three occurrences in the log file.

 It is *always* 0x0 != 0xffffffff and never any other more random/realistic
 values.  The backend does not crash after a specific interval it can be
 after 10 minutes or after 45 minutes but generally always easily within 30
 minutes.

 I have tested using up to revision 13552 from the trunk (which I assume
 has fix from ticket 2664) - the error is the same.  Please let me know if
 you require more details, more log file output or anything testing.  It
 just does not seem to like the way Mux A is transmitted which is a pity as
 I really want to start using my HTPC.

 2007-05-29 15:57:13.786 Writing PAT & PMT @221925916 + 212064
 2007-05-29 15:57:14.050 Writing PAT & PMT @261301012 + 282752
 2007-05-29 15:57:14.134 DVBRec(0): 34 PID filters open.
 2007-05-29 15:57:14.136 Writing PAT & PMT @268713852 + 1625824
 2007-05-29 15:57:14.881 DVBRec(2): 31 PID filters open.
 2007-05-29 15:57:14.966 PESPacket: Failed CRC check 0x0 != 0xffffffff for
 StreamID = 0x0
 2007-05-29 15:57:14.968 DVBRec(2): SetPAT(13120 on 0x13a)
 2007-05-29 15:57:14.969 CreatePATSingleProgram()
 2007-05-29 15:57:14.970 PAT in input stream
 2007-05-29 15:57:14.973 PESPacket: Failed CRC check 0x0 != 0xffffffff for
 StreamID = 0x0
 2007-05-29 15:57:14.973 PESPacket: Failed CRC check 0x0 != 0xffffffff for
 StreamID = 0x0
 2007-05-29 15:57:14.990 DVBRec(0): SetPAT(12866 on 0x1c05)
 2007-05-29 15:57:15.011 DVBRec(1): SetPAT(14208 on 0x1c0f)
 2007-05-29 15:57:15.031 CreatePATSingleProgram()
 2007-05-29 15:57:15.051 CreatePATSingleProgram()
 2007-05-29 15:57:15.071 PAT in input stream
 2007-05-29 15:57:15.094 PAT in input stream
 (backend.log file ends here)

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Ticket URL: <http://svn.mythtv.org/trac/ticket/3541>
MythTV <http://svn.mythtv.org/trac>
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