flac crashed with SIGFPE

[AO]

On 13.10 amd64, when using Rubyripper, Rubyripper returns a successful rip to a single flac file, the wav file is correctly being generated during the process, but flac crashes during the conversion step and produces a 172 ko file.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: flac 1.3.0-1
ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7
Uname: Linux 3.11.0-4-generic x86_64
ApportVersion: 2.12.1-0ubuntu3
Architecture: amd64
CrashCounter: 1
Date: Fri Aug 30 17:00:06 2013
ExecutablePath: /usr/bin/flac
MarkForUpload: True
ProcCmdline: flac -o /home/username/flac/Stereolab\ (2006)\ Fab\ Four\ Suture/Stereolab\ -\ Fab\ Four\ Suture\ (2006).flac --best -V --tag ARTIST=Stereolab --tag ALBUM=Fab\ Four\ Suture --tag GENRE=Indie\ Rock --tag DATE=2006 --tag ENCODER=Rubyripper\ 0.7.0a1 --tag DISCID=8e0c220c --tag TRACKTOTAL=12 --cuesheet=/home/username/flac/Stereolab\ (2006)\ Fab\ Four\ Suture/Stereolab\ -\ Fab\ Four\ Suture\ (flac).cue /home/username/flac/temp_cdrom/image_1.wav
Signal: 8
SourcePackage: flac
StacktraceTop:
 ?? ()
 ?? ()
 ?? () from /usr/lib/x86_64-linux-gnu/libFLAC.so.8
 ?? () from /usr/lib/x86_64-linux-gnu/libFLAC.so.8
 ?? () from /usr/lib/x86_64-linux-gnu/libFLAC.so.8
Title: flac crashed with SIGFPE
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Marcel Fuhrmann (marcel-fuhrmann)]

Importance: Medium...
If you want to archive your CDs with flac it's important. :-)

Is there a workaround?

[Cosmik Debris (cosmik-debris)]

Workaround: add --silent to the default flac options:

For example:
   --best -V --silent

Without the --silent option, the same flac command runs fine when run from a terminal. Notice that it also displays a progress indicator.
Somehow, this progress indicator seems to cause a floating point exception when Ruby executes the flac command by calling:
       PTY.spawn(command) do |stdin, stdout, pid|

This worked fine in Ubuntu 13.04, though.

[sokolov (daniel-sokolov)]

I can confirm this bug for Ubuntu 14.04 Trusty when using ripperX to encode with flac.

I have tried adding "silent" to the options in ripperX. The result was that no crash was reported, but the flac-files were still too small and only contained a few seconds of sound each. Same result when I added "--best -V --silent"