Hello. During investigation of signal handling in JVM (for https://github.com/openjdk/jdk/pull/9100#discussion_r894992558 ) I found out that sending USR2 crashes my JDK. (Linux fastdebug x64)
kill -USR2 1346792 # assert(thread != __null) failed: Missing current thread in SR_handler # Internal Error (/home/turbanoff/Projects/official_jdk/src/hotspot/os/posix/signals_posix.cpp:1600), pid=1346792, tid=1346792 Full hs_err_pid1346792.log: https://gist.github.com/turbanoff/2099327ea13357a90df43a2d6b0e2e6a Is it known/expected behaviour? I found some description there https://docs.oracle.com/en/java/javase/11/troubleshoot/handle-signals-and-exceptions.html that USR2 is used for SUSPEND/RESUME. Is it supported by Hotspot? Andrey Turbanov
