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[Bug 1038746] Re: mythfrontend.real crashed with SIGSEGV in mpegts_push_section()

To: linux-traipu@xxxxxxxxxxxxxxxxxxx
From: Stephen Robertson <stephengrobertson@xxxxxxxxx>
Date: Sun, 19 Aug 2012 19:24:22 -0000
Reply-to: Bug 1038746 <1038746@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Visibility changed to: Public

** Description changed:

- Similar symptoms to bug TBD.  Though I thought that removing leftover
- 0.25 library solved that problem.  This appears not to be the case.
+ Similar symptoms to bug #1037290.  Though I thought that removing
+ leftover 0.25 library solved that problem.  This appears not to be the
+ case.
  
- THis problem seems to occur when attempting to watch a second recording.
+ This problem seems to occur when attempting to watch a second recording.
  I've not established a patter yet if it affects a particular type of
  recording.
  
  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: mythtv-frontend 2:0.26.0~master.20120816.7203f17-0ubuntu0mythbuntu2 [origin: LP-PPA-mythbuntu-0.26]
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic-pae 3.2.24
  Uname: Linux 3.2.0-29-generic-pae i686
  NonfreeKernelModules: nvidia
  .var.log.mythtv.mythavtest.log:
-  
+ 
  .var.log.mythtv.mythccextractor.log:
-  
+ 
  .var.log.mythtv.mythfilldatabase.log:
-  
+ 
  .var.log.mythtv.mythjobqueue.log:
-  
+ 
  .var.log.mythtv.mythlcdserver.log:
-  
+ 
  .var.log.mythtv.mythmediaserver.log:
-  
+ 
  .var.log.mythtv.mythmessage.log:
-  
+ 
  .var.log.mythtv.mythshutdown.log:
-  
+ 
  .var.log.mythtv.mythutil.log:
-  
+ 
  .var.log.mythtv.mythwelcome.log:
-  
+ 
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: i386
  CrashCounter: 1
  CrashDB: mythbuntu
  Date: Sun Aug 19 19:16:27 2012
  ExecutablePath: /usr/bin/mythfrontend.real
  Installed_mythtv_dbg: 2:0.26.0~master.20120816.7203f17-0ubuntu0mythbuntu2
  ProcCmdline: /usr/bin/mythfrontend.real --syslog local7
  ProcEnviron:
-  PATH=(custom, no user)
-  LANG=en_GB.UTF-8
-  SHELL=/bin/bash
+  PATH=(custom, no user)
+  LANG=en_GB.UTF-8
+  SHELL=/bin/bash
  SegvAnalysis:
-  Segfault happened at: 0xb508fe97 <mpegts_push_section+103>:	movzbl 0x1(%edx),%eax
-  PC (0xb508fe97) ok
-  source "0x1(%edx)" (0xb42e841e) in non-readable VMA region: 0xb42e8000-0xb42e9000 ---p /usr/lib/libmythavutil.so.51.56.100
-  destination "%eax" ok
+  Segfault happened at: 0xb508fe97 <mpegts_push_section+103>:	movzbl 0x1(%edx),%eax
+  PC (0xb508fe97) ok
+  source "0x1(%edx)" (0xb42e841e) in non-readable VMA region: 0xb42e8000-0xb42e9000 ---p /usr/lib/libmythavutil.so.51.56.100
+  destination "%eax" ok
  SegvReason: reading VMA /usr/lib/libmythavutil.so.51.56.100
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
-  mpegts_push_section (filter=0x9921e00, section=0xa2470a0 "<\270\244", section_len=2215) at libavformat/mpegts-mythtv.c:689
-  write_section_data (s=0x991d600, tss1=0x9921e00, buf=0xbf81f465 "^\234\216\"\236J\002\001\350sH", buf_size=30, is_start=0) at libavformat/mpegts-mythtv.c:401
-  handle_packet (ts=0x91ecd80, packet=0x6867af2c <Address 0x6867af2c out of bounds>) at libavformat/mpegts-mythtv.c:2527
-  handle_packets (ts=0x91ecd80, nb_packets=0) at libavformat/mpegts-mythtv.c:2643
-  mpegts_read_packet (s=0x991d600, pkt=0xbf81f64c) at libavformat/mpegts-mythtv.c:2951
+  mpegts_push_section (filter=0x9921e00, section=0xa2470a0 "<\270\244", section_len=2215) at libavformat/mpegts-mythtv.c:689
+  write_section_data (s=0x991d600, tss1=0x9921e00, buf=0xbf81f465 "^\234\216\"\236J\002\001\350sH", buf_size=30, is_start=0) at libavformat/mpegts-mythtv.c:401
+  handle_packet (ts=0x91ecd80, packet=0x6867af2c <Address 0x6867af2c out of bounds>) at libavformat/mpegts-mythtv.c:2527
+  handle_packets (ts=0x91ecd80, nb_packets=0) at libavformat/mpegts-mythtv.c:2643
+  mpegts_read_packet (s=0x991d600, pkt=0xbf81f64c) at libavformat/mpegts-mythtv.c:2951
  Title: mythfrontend.real crashed with SIGSEGV in mpegts_push_section()
  UpgradeStatus: Upgraded to precise on 2012-08-13 (6 days ago)
  UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin mythtv plugdev sambashare vboxusers video

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https://bugs.launchpad.net/bugs/1038746

Title:
  mythfrontend.real crashed with SIGSEGV in mpegts_push_section()

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  New

Bug description:
  Similar symptoms to bug #1037290.  Though I thought that removing
  leftover 0.25 library solved that problem.  This appears not to be the
  case.

  This problem seems to occur when attempting to watch a second
  recording.  I've not established a patter yet if it affects a
  particular type of recording.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: mythtv-frontend 2:0.26.0~master.20120816.7203f17-0ubuntu0mythbuntu2 [origin: LP-PPA-mythbuntu-0.26]
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic-pae 3.2.24
  Uname: Linux 3.2.0-29-generic-pae i686
  NonfreeKernelModules: nvidia
  .var.log.mythtv.mythavtest.log:

  .var.log.mythtv.mythccextractor.log:

  .var.log.mythtv.mythfilldatabase.log:

  .var.log.mythtv.mythjobqueue.log:

  .var.log.mythtv.mythlcdserver.log:

  .var.log.mythtv.mythmediaserver.log:

  .var.log.mythtv.mythmessage.log:

  .var.log.mythtv.mythshutdown.log:

  .var.log.mythtv.mythutil.log:

  .var.log.mythtv.mythwelcome.log:

  ApportVersion: 2.0.1-0ubuntu12
  Architecture: i386
  CrashCounter: 1
  CrashDB: mythbuntu
  Date: Sun Aug 19 19:16:27 2012
  ExecutablePath: /usr/bin/mythfrontend.real
  Installed_mythtv_dbg: 2:0.26.0~master.20120816.7203f17-0ubuntu0mythbuntu2
  ProcCmdline: /usr/bin/mythfrontend.real --syslog local7
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0xb508fe97 <mpegts_push_section+103>:	movzbl 0x1(%edx),%eax
   PC (0xb508fe97) ok
   source "0x1(%edx)" (0xb42e841e) in non-readable VMA region: 0xb42e8000-0xb42e9000 ---p /usr/lib/libmythavutil.so.51.56.100
   destination "%eax" ok
  SegvReason: reading VMA /usr/lib/libmythavutil.so.51.56.100
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   mpegts_push_section (filter=0x9921e00, section=0xa2470a0 "<\270\244", section_len=2215) at libavformat/mpegts-mythtv.c:689
   write_section_data (s=0x991d600, tss1=0x9921e00, buf=0xbf81f465 "^\234\216\"\236J\002\001\350sH", buf_size=30, is_start=0) at libavformat/mpegts-mythtv.c:401
   handle_packet (ts=0x91ecd80, packet=0x6867af2c <Address 0x6867af2c out of bounds>) at libavformat/mpegts-mythtv.c:2527
   handle_packets (ts=0x91ecd80, nb_packets=0) at libavformat/mpegts-mythtv.c:2643
   mpegts_read_packet (s=0x991d600, pkt=0xbf81f64c) at libavformat/mpegts-mythtv.c:2951
  Title: mythfrontend.real crashed with SIGSEGV in mpegts_push_section()
  UpgradeStatus: Upgraded to precise on 2012-08-13 (6 days ago)
  UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin mythtv plugdev sambashare vboxusers video

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