[DVDnav-discuss] Crash in libdvdread-4.1.4-1219/src/dvd_reader.c:458

[Erik Hovland]

On Mon, Sep 26, 2011 at 12:29 AM, Frederik Himpe <fhimpe at telenet.be> wrote:
> I'm using Debian Wheezy AMD64 with libdvdread-4.1.4-1219. While playing a
> certain dvd movie in Totem, it crashes always at exactly the same point
> in the movie, and it seems to point to libdvdread:
>
> Program terminated with signal 11, Segmentation fault.
> #0  0x00007f1ac2f8ecb4 in DVDOpen (ppath=0x1fae6c0 "/media/cdrom0") at /build/buildd-libdvdread_4.1.4-1219-2-amd64-jyFPHO/libdvdread-4.1.4-1219/src/dvd_reader.c:458
> 458     /build/buildd-libdvdread_4.1.4-1219-2-amd64-jyFPHO/libdvdread-4.1.4-1219/src/dvd_reader.c: No such file or directory.
>        in /build/buildd-libdvdread_4.1.4-1219-2-amd64-jyFPHO/libdvdread-4.1.4-1219/src/dvd_reader.c
>
> Full backtrace can be found in this Debian bug report:
>
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=642739
>
> Does this indeed look like to be a bug in libdvdread, and do you need any
> more information to debug this further?

That is a pretty good bug report. It even has a backtrace. But if I go
to version
1219 in subversion and look at dvd_reader.c I see code that is for Windows or
OS/2:
457 #if defined(_WIN32) || defined(__OS2__)
458     if(strlen(path_copy) > TITLES_MAX) {

Is it possible that all of the macros in this area are causing the
backtrace to have bogus line number info?

What do newer versions of libdvdread do when asked to play this
DVD? Does VLC exhibit the same symptom? mplayer?

-- 
Erik Hovland
erik at hovland.org
http://hovland.org/