> The field access/modification events set interp only mode and compiled frame > is not expected. However JNI might call `post_field_access_by_jni` while the > last java frame is compiled. > > 1) The thread switched to interponly mode while it is in JNI code. The > deoptimization is triggered but each frame is really changed only execution > returns to it. So last java frame was not executed and thus is still > compiled. > 2) The JNI accessed field from the thread where field events are not enabled. > So the `post_field_access_by_jni` is called in threads in interp_only mode. > > The original example doesn't reproduce issue because of JDK changes and I > don't know of it is 1) or 2)I. I implemented regression test for both > problems. > > The location should be zero for JNI access.
Leonid Mesnik has updated the pull request incrementally with one additional commit since the last revision: renamed native path ------------- Changes: - all: https://git.openjdk.org/jdk/pull/27584/files - new: https://git.openjdk.org/jdk/pull/27584/files/b737d9ea..76226abf Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=27584&range=04 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27584&range=03-04 Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/27584.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/27584/head:pull/27584 PR: https://git.openjdk.org/jdk/pull/27584
