The stunnel guys have worked tirelessly to get this resolved. Its an interaction of openssl 1.1.0k and Stunnel. I think essentially openssl is doing something strange. They came up with a fix and its currently in the https://www.stunnel.org/downloads/beta/stunnel-5.56b1.tar.gz beta. You should give it a try and see if its resolves your issue.
On Thu, 7 Nov 2019 at 19:36, Francois Robinette frobinette@hotmail.com wrote:
I've seen other having the same issue without resolution so far... But we do have the same issue:
stunnel[7886]: segfault at 21 ip 00007f70aa1efcea sp 00007f6fa7797978 error 6 in libpthread-2.12.so[7f70aa1e5000+17000]
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