Public bug reported:

When trying to play my "Prince of Persia" DVD, vlc just keeps eating up
memory and eventually segfaults. This a regression. I booted into Natty,
which played the entire DVD without problems. Next booting 12.04 again I
was able to reproduce the same problem.

In 12.04 it consumes more than 2GB of virtual memory and then segfaults
before even reaching the DVD menu. At that point it tells me there is
not enough memory to file a bug report automatically. In Natty vlc can
display the DVD menu using just 100-200MB of memory.

Here is what I found in dmesg output after a few attempts to play the
DVD under 12.04:

[21551.254649] vlc[3136]: segfault at ffffffff ip 02c21bb5 sp b74a85f0 error 4 
in libdvdnav.so.4.2.0[2c18000+18000]
[21561.978706] VFS: busy inodes on changed media or resized disk sr0
[21575.442315] type=1400 audit(1340042845.355:472): apparmor="DENIED" 
operation="open" parent=1 
profile="/usr/lib/lightdm/lightdm/lightdm-guest-session-wrapper" 
name="/proc/3147/cmdline" pid=1887 comm="dbus-daemon" requested_mask="r" 
denied_mask="r" fsuid=126 ouid=0
[21815.306146] UDF-fs: Partition marked readonly; forcing readonly mount
[21815.335042] UDF-fs: INFO Mounting volume 'PER-0E-UW1.1_DES', timestamp 
2010/06/29 03:16 (1078)
[22132.360055] vlc[3779]: segfault at ffffffff ip 03117bb5 sp b51fd5f0 error 4 
in libdvdnav.so.4.2.0[310e000+18000]
[22141.934771] type=1400 audit(1340043411.847:473): apparmor="DENIED" 
operation="open" parent=1 
profile="/usr/lib/lightdm/lightdm/lightdm-guest-session-wrapper" 
name="/proc/3845/cmdline" pid=1887 comm="dbus-daemon" requested_mask="r" 
denied_mask="r" fsuid=126 ouid=0
[22510.407293] vlc[3902]: segfault at ffffffff ip 01f08bb5 sp b49fe5f0 error 4 
in libdvdnav.so.4.2.0[1eff000+18000]

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: vlc 2.0.1-4
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
Uname: Linux 3.2.0-24-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu8
Architecture: i386
Date: Mon Jun 18 23:08:21 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: vlc
UpgradeStatus: Upgraded to precise on 2012-05-08 (41 days ago)

** Affects: vlc (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 precise

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https://bugs.launchpad.net/bugs/1014846

Title:
  vlc consumes all memory and segfaults on some DVDs

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