[erlang-questions] erlang 20.0, macos 10.11, crash

Max Lapshin <>
Wed Jul 26 19:17:33 CEST 2017


Running erlang 20.0:

beam/erl_port.h:769: Lock check assertion "erts_lc_is_port_locked(prt) ||
((int) (SWord) erts_tsd_get(erts_is_crash_dumping_key))" failed!

Currently no locks are locked by the unknown thread.


just on start of program.

Compiled with:


./configure --prefix=/usr/local/Cellar/erlang/19.0 --enable-threads
--enable-dirty-schedulers --enable-smp-support --enable-kernel-poll
--enable-m64-build --with-dynamic-trace=dtrace --without-javac --with-ssl
--with-wx --with-ssl=/usr/local/Cellar/openssl/1.0.2
--with-microstate-accounting=extra --enable-hipe --enable-lock-counter


Is it a known problem?
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