On Mon, 12 Jul 2021 20:22:25 GMT, Anton Kozlov <akoz...@openjdk.org> wrote:
> The change adds W^X transition in RawMonitor family of functions, fixing the > crash. RawMonitor functions are treated specially, so W^X transition is not > inserted automatically. A better fix would be in .xml description for entries > generation, but for now it is too risky. I hope to get this fixed in 17 in > the simplest way and do re-work in the 18. This change is still 100% correct > for the reported bug. > > Verified by: > > jtreg -vmoption:-XX:+AssertWXAtThreadSync > test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/bcinstr/BI04/bi04t002 This pull request has now been integrated. Changeset: 381bd621 Author: Anton Kozlov <akoz...@openjdk.org> URL: https://git.openjdk.java.net/jdk17/commit/381bd621074a13cc2f260c18371c956bc48abd4d Stats: 6 lines in 1 file changed: 5 ins; 0 del; 1 mod 8266889: [macosx-aarch64] Crash with SIGBUS in MarkActivationClosure::do_code_blob during vmTestbase/nsk/jvmti/.../bi04t002 test run Reviewed-by: dholmes, aph, sspitsyn ------------- PR: https://git.openjdk.java.net/jdk17/pull/244
