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[JB VideoLAN <450342@xxxxxxxxxxxxxxxxxx>]

The stacktrace is incomplete and useless...

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https://bugs.launchpad.net/bugs/450342

Title:
  dvdbackup crashed with SIGSEGV in DVDClose()

Status in “libdvdread” package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: dvdbackup

  It crashed when invoking as dvdbackup -M.

  #0  0x00007f2d32f6ac84 in ?? () from /usr/lib/libdvdread.so.4
  No symbol table info available.
  #1  0x00007f2d32f60eab in DVDClose () from /usr/lib/libdvdread.so.4
  No symbol table info available.
  #2  0x0000000000401a97 in main (argc=<value optimized out>,
      argv=<value optimized out>) at main.c:511
   flags = <value optimized out>
   lose = <value optimized out>
   title_set = 0
   titles = 0
   start_chapter = 0
   end_chapter = 0
   do_mirror = 1
   do_title_set = 0
   do_chapter = 0
   do_titles = 0
   do_feature = 0
   do_info = 0
   errorstrat = STRATEGY_SKIP_MULTIBLOCK
   return_code = -1
   dvd = 0x405bcf "/dev/dvd"
   aspect_temp = 0x0
   start_chapter_temp = <value optimized out>
   end_chapter_temp = 0x0
   titles_temp = <value optimized out>
   title_set_temp = 0x0
   errorstrat_temp = <value optimized out>
   title_name = "***** ****07 d04 (27 Set 09)\000   "
   provided_title_name = <value optimized out>
   targetdir = 0x405bcd "."
   targetname = "./***** ****07 d04 (27 Set 09)/VIDEO_TS", '\0' <repeats 945 times>, "m�\0273-\177", '\0' <repeats 75 times>, " \000\000\000\000\000\000P\037\000\000\000\000\000\000P\037", '\0' <repeats 14 times>, "\005\000\000\000\000\000\000\000\000  \000\000\000\000\000\000@ \000\000\000\000\000\2000 \000\000\000\000\000\0001 \000\000\000\000\000\000 \000\000\000\000\000\000\003", '\0' <repeats 15 times>, "\r\200\0303-\177\000\000\000\000\000\000\000\000\000\000i\230\2362-\177\000\000\000\000\000\000\000\000\000\000\222\022\0303-\177", '\0' <repeats 26 times>, "G"...
   fileinfo = {st_dev = 2053, st_ino = 2120691, st_nlink = 2,
    st_mode = 16877, st_uid = 1000, st_gid = 1000, __pad0 = 0, st_rdev = 0,
    st_size = 48, st_blksize = 4096, st_blocks = 0, st_atim = {
      tv_sec = 1255438576, tv_nsec = 0}, st_mtim = {tv_sec = 1255438576,
      tv_nsec = 0}, st_ctim = {tv_sec = 1255438576, tv_nsec = 0}, __unused = {
      0, 0, 0}}
   _dvd = <value optimized out>
   longopts = {{name = 0x405c72 "help", has_arg = 0, flag = 0x0,
      val = 104}, {name = 0x405c77 "version", has_arg = 0, flag = 0x0,
      val = 86}, {name = 0x405c7f "info", has_arg = 0, flag = 0x0, val = 73}, {
      name = 0x405c84 "mirror", has_arg = 0, flag = 0x0, val = 77}, {
      name = 0x405c8b "feature", has_arg = 0, flag = 0x0, val = 70}, {
      name = 0x405c93 "titleset", has_arg = 1, flag = 0x0, val = 84}, {
      name = 0x405c9c "title", has_arg = 1, flag = 0x0, val = 116}, {
      name = 0x405ca2 "start", has_arg = 1, flag = 0x0, val = 115}, {
      name = 0x405ca8 "end", has_arg = 1, flag = 0x0, val = 101}, {
      name = 0x405cac "input", has_arg = 1, flag = 0x0, val = 105}, {
      name = 0x405cb2 "output", has_arg = 1, flag = 0x0, val = 111}, {
      name = 0x405cb9 "verbose", has_arg = 0, flag = 0x0, val = 118}, {
      name = 0x405cc1 "name", has_arg = 1, flag = 0x0, val = 110}, {
      name = 0x405cc6 "aspect", has_arg = 1, flag = 0x0, val = 97}, {
      name = 0x405ccd "error", has_arg = 1, flag = 0x0, val = 114}, {
      name = 0x0, has_arg = 0, flag = 0x0, val = 0}}

  This is the terminal output:

  libdvdread: Using libdvdcss version 1.2.10 for DVD access
  libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
  libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
  libdvdread: Can't open file VIDEO_TS.IFO.
  Cannot open Video Manager (VMG) info.
  Mirror of DVD failed
  Segmentation fault (core dumped)

  No program using libdvdnav works for me right now, but this is the
  only one which crashed.

  ProblemType: Crash
  Architecture: amd64
  Date: Tue Oct 13 14:56:38 2009
  DistroRelease: Ubuntu 9.10
  ExecutablePath: /usr/bin/dvdbackup
  Package: dvdbackup 0.4.1-1
  ProcCmdline: dvdbackup -M
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, user)
   LANG=gl_ES.UTF-8
   LANGUAGE=gl_ES.UTF-8
  ProcVersionSignature: Ubuntu 2.6.31-13.45-generic
  SegvAnalysis:
   Segfault happened at: 0x7f2d32f6ac84:	mov    (%rdi),%rdi
   PC (0x7f2d32f6ac84) ok
   source "(%rdi)" (0x2e53455f6c672f65) not located in a known VMA region (needed readable region)!
   destination "%rdi" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: dvdbackup
  StacktraceTop:
   ?? () from /usr/lib/libdvdread.so.4
   DVDClose () from /usr/lib/libdvdread.so.4
   ?? ()
   __libc_start_main () from /lib/libc.so.6
   ?? ()
  Title: dvdbackup crashed with SIGSEGV in DVDClose()
  Uname: Linux 2.6.31-13-generic x86_64
  UserGroups: adm admin audio cdrom dialout dip floppy fuse kvm lpadmin netdev plugdev powerdev sambashare scanner video

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