Need help with atac (kmer): running atac worked in stable, but fails in testing/unstable
I was writing an autopkgtest for kmer  and faced a SEGFAULT error while testing one of kmer's binaries — atac in testing/unstable .
Notably, that building and testing atac in stable were successful. Moreover, installing an older version of gcc on testing, the one that is used in stable (4:6.3.0-4), eliminates the SEGFAULT.
Could someone with expertise give me a hint on how can be solved this issue?