[Ardour-Users] an A4 session that doesn't start anymore

Robin Gareus robin at gareus.org
Tue Nov 17 14:41:52 PST 2015

On 11/17/2015 09:54 PM, fred wrote:
> Hi list,
> mix was almost done, just like to work on common reverb (IR lv2 on a
> stereo bus).
> transport was rolling, I double clic on the IR plugin up-left in the
> editor view.
> A4 (from the site) immediatly freeze.

IR.lv2 is know for causing issues on session reload and GUI access,
mainly due to https://github.com/FFTW/fftw3/issues/16  which results
memory corruption and undefined behavior.

Recent Ardour nightly builds come with a thread-safe version of the fftw
library (upcoming fftw-3.3.5 from git) which should solve this issue:


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