FFTW FAQ - Section 4
Known bugs


Question 4.1. FFTW-1.1 crashes in rfftwnd on Linux.

There was a bug in rfftwnd causing an incorrect amount of memory to be allocated. The bug showed up in Linux with libc-5.3.12 (and nowhere else that we know of). The bug has been fixed in FFTW 1.2.
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Matteo Frigo and Steven G. Johnson / fftw@theory.lcs.mit.edu - 08 September 1997

Extracted from FFTW Frequently Asked Questions with Answers, Copyright © 1997 Massachusetts Institute of Technology.