Bug#786438: libmp3lame0: general protection error in libmp3lame.so.0.0.0

[Detrick Merz]

On Wed, May 27, 2015 at 10:30 AM, Fabian Greffrath <fabian at debian.org> wrote:
> Am Mittwoch, den 27.05.2015, 10:03 -0400 schrieb Detrick Merz:
>> lame does *not* seem to produce this same error. I took a freshly built wheezy
>> system, installed icecast2 and liquidsoap as before, upgraded to jessie,
>> saw the general protection error when trying to start liquidsoap. I then
>> installed lame, fed it a wav, and it happily produced an mp3 file. No errors
>> appeared on stdout or in /var/log/messages.
>
> Alright, so it appears that this bug is rather in liquidsoap (or one of
> its plugins or the way they call libmp3lame) than in libmp3lame itself.
>
> Before I ask you to rebuild lame on your system, please tell me the
> *exact* steps that are required to reproduce the bug.

I've rebuilt my test system a few times to make sure I've covered the
steps correctly.

- Install Debian Wheezy i386 net install (minimal is fine)
- apt-get install icecast2
- apt-get install liquidsoap
- start icecast2
- configure liquidsoap to output.icecast(%mp3)
- sed -i 's/wheezy/jessie/g' /etc/apt/sources.list
- apt-get update
- apt-get install icecast2 (optional)
- apt-get install liquidsoap OR apt-get upgrade
- /etc/init.d/liquidsoap stop
- /etc/init.d/liquidsoap start

OR

- Install Debian Wheezy i386 net install (minimal is fine)
- sed -i 's/wheezy/jessie/g' /etc/apt/sources.list
- apt-get update
- apt-get upgrade
- apt-get dist-upgrade
- apt-get install icecast2
- apt-get install liquidsoap
- start icecast2
- configure liquidsoap to output.icecast(%mp3)

In the past couple of days I've discovered that using a clean Jessie
install does not seem to produce the same error. I thought I had
tested that before and seen otherwise, but I've tried it multiple
times and cannot reproduce it with a clean Jessie build.

Given the two sets of paths listed above to reproduce this, I'm
guessing there's some holdover from the Wheezy install that's the root
cause, but it's probably not something explicitly in liquidsoap or the
libmp3lame library?