On Thu, 24 Dec 2020 17:33:21 GMT, Daniel D. Daugherty <[email protected]> wrote:
> A small robustness fix in ThreadsSMRSupport::print_info_on() to reduce the > likelihood of crashes during error reporting. Uses Threads_lock->try_lock() > for safety and restricts some reporting to when the Threads_lock has been > acquired (depends on JDK-8256383). Uses a ThreadsListHandle to make > the current ThreadsList safe for reporting (depends on JDK-8258284). Also > detects when the system ThreadsList (_java_thread_list) has changed and > will warn that some of the reported info may now be stale. > > Two existing tests have been updated to reflect the use of a ThreadsListHandle > in ThreadsSMRSupport::print_info_on(). Mach5 Tier[1-6] testing has no > regressions. This pull request has now been integrated. Changeset: c0540ffd Author: Daniel D. Daugherty <[email protected]> URL: https://git.openjdk.java.net/jdk/commit/c0540ffd Stats: 95 lines in 3 files changed: 32 ins; 9 del; 54 mod 8231627: ThreadsListHandleInErrorHandlingTest.java fails in printing all threads Reviewed-by: eosterlund, coleenp, pchilanomate, sspitsyn ------------- PR: https://git.openjdk.java.net/jdk/pull/1891
