> This is an issue with a dynamic load of a JVMTI agent into running VM. > The `VM_SetNotifyJvmtiEventsMode` enabling operation makes a call to the > function `count_transitions_and_correct_jvmti_thread_states()`. This function > in its turn make a call to the function `correct_jvmti_thread_state()`. But > it does it conditionally, only if the field `_whitebox_used` is `true`. > The test provided in the bug report showed that it has to be called > unconditionally as the assumption that it is only needed on the subsequent > `notifyJvmti` enabling is incorrect. > > Then the field `_whitebox_used` is not needed anymore and removed in this fix. > Some obsolete comments are removed or updated. > > New test is added: > `test/hotspot/jtreg/serviceability/jvmti/vthread/VThreadTLSTest`. > It is failed without the fix and passed with the fix. > > Testing: > - ran new test > `test/hotspot/jtreg/serviceability/jvmti/vthread/VThreadTLSTest` > - mach5 tiers 1-5 are good
Serguei Spitsyn has updated the pull request incrementally with one additional commit since the last revision: review: removed unneeded @compile commands from new test ------------- Changes: - all: https://git.openjdk.org/jdk/pull/14842/files - new: https://git.openjdk.org/jdk/pull/14842/files/f582fbc0..743188b5 Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=14842&range=01 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14842&range=00-01 Stats: 2 lines in 1 file changed: 0 ins; 2 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/14842.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/14842/head:pull/14842 PR: https://git.openjdk.org/jdk/pull/14842
