I remember talking to Brendan about the PreserveFramePointer patch during my first months at Netflix in 2015. As of JDK 21, unfortunately it is no longer a gene

I remember talking to Brendan about the PreserveFramePointer patch during my first months at Netflix in 2015. As of JDK 21, unfortunately it is no longer a general purpose solution for the JVM, because it prevents a fast path being taken for stack thawing for virtual threads: https://github.com/openjdk/jdk/blob/d32ce65781c1d7815a69ceac720cdf3ae39caa9e/src/hotspot/share/runtime/continuationFreezeThaw.cpp#L1807 https://github.com/openjdk/jdk/blob/d32ce65781c1d7815a69ceac...