I have been trying to process 7T images but for most of them, recon-all just never finishes. It seems like it just bugged at some point with no error messages. At first, I thought that it just needed more time, but once, I had them running for more than 5 days and they were still stuck (they all get stuck at different stages of the process). 

For example, one get stuck at this stage: 

After retessellation of defect 13 (v0=21576), euler #=-176 (455542,1350444,894726) : difference with theory (-214) = -38 

CORRECTING DEFECT 14 (vertices=77947, convex hull=8486, v0=30684)

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