Hi,
could I please get reviews for the following small patch? It fixes a bug in the
test
com/sun/jdi/SetLocalWhileThreadInNative.java that causes a deadlock when
executed with
-vmoption:-Xcomp.
Deadlock:
Debuggee (SetLocalWhileThreadInNativeTarget):
- running with -Xcomp
- still in early start-up
- printed a lot on tty already, because -XX:+PrintCompilation
-XX:+PrintInlining are given
- java thread waits for compiler thread to finish compile task
- compiler thread is blocked in write on tty. tty buffer is full, because
debugger is not yet
reading debuggee's output
Debugger
- waiting until connection to debugger is established
The fix is to remove -XX:+PrintCompilation -XX:+PrintInlining. In addition it
excludes the test if
running with -Xcomp, because that mode does not add a lot of value, as the test
actually only needs
dontinline_testMethod() to be compiled. Running with -Xcomp just wastes energy.
Webrev: http://cr.openjdk.java.net/~rrich/webrevs/2018/8213902/webrev.01/
Bug: https://bugs.openjdk.java.net/browse/JDK-8213902
The contribution needs to be sponsored as well, please.
Thanks, Richard.
