[DVDnav-discuss] Segmentation fault trying to read "The Prestige" DVD in VLC

[Olivier Diotte]

On Wed, Jun 12, 2013 at 6:47 PM, Erik Hovland <erik at hovland.org> wrote:
>
> This warning message is harmless and is very likely not the cause of
> the segfault.
>
> Rathann is right, a backtrace would probably point to what the actual
> problem is.
>
> Rathann checked in a patch from John Stebbins that removed that
> warning message on December 9th of last year, so it is not yet in the
> released version of libdvdread.
>

Hi Erik,

I understand from your email that Rathann replied to my message. If
that is the case, I did not see it (may be because I am not
subscribed).

I am now using Gentoo's libdvdread-9999 (which seems to pull directly
from the SVN repository AFAIKT). Here is the result of running VLC
with that version of libdvdread in gdb (last lines only):

libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x000002db
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_0.VOB at 0x000003da
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x00000495
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_02_0.VOB at 0x0004ba39
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_02_1.VOB at 0x0006758a
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_03_0.VOB at 0x0037cb54
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_03_1.VOB at 0x0037cdb2
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_04_0.VOB at 0x0037cf68
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_04_1.VOB at 0x0037d023
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_05_0.VOB at 0x0037d136
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_05_1.VOB at 0x0037d1f1
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_06_0.VOB at 0x0037e4c6
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_06_1.VOB at 0x0037e581
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_07_0.VOB at 0x0037e7c4
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_07_1.VOB at 0x0037e87f
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_08_0.VOB at 0x0037ebd9
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_08_1.VOB at 0x0037ec94
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_09_0.VOB at 0x003a47bb
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_09_1.VOB at 0x003a4876
libdvdread: Elapsed time 0
libdvdread: Found 9 VTS's
libdvdread: Elapsed time 0

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffe1972700 (LWP 6568)]
0x00007ffff5cdc203 in dvdnav_describe_title_chapters () from
/usr/lib64/libdvdnav.so.4
(gdb)