Issue #19841 has been updated by byroot (Jean Boussier). Right, I fear the best we can do is to detect this case and raise a cleaner error. ---------------------------------------- Bug #19841: Marshal.dump stack overflow with recursive Time https://bugs.ruby-lang.org/issues/19841#change-104163 * Author: segiddins (Samuel Giddins) * Status: Open * Priority: Normal * ruby -v: 3.2.2 * Backport: 3.0: WONTFIX, 3.1: REQUIRED, 3.2: REQUIRED ---------------------------------------- ``` ruby #!/usr/bin/env ruby puts RUBY_VERSION t = Time.at(0, 1, :nanosecond) t.instance_variable_set :@itself, t Marshal.dump(t) ``` Yields a stack overflow error from the `Marshal.dump` call, even though Marshal is explicitly able to handle cyclical references -- https://bugs.ruby-lang.org/