On Tue, 12 Oct 2021 13:20:21 GMT, coleen.phillimore at oracle.com <coleen.phillimore at oracle.com> wrote: > ttyLock is taken and released inside of print_cr, but it's a nosafepoint lock so would not block. Okay - thanks @coleenp ------------- PR: https://git.openjdk.java.net/jdk/pull/5590