> 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.
Daniel D. Daugherty has updated the pull request incrementally with one additional commit since the last revision: Address comments from coleenp and pchilano. ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/1891/files - new: https://git.openjdk.java.net/jdk/pull/1891/files/334bdd2a..c9f4c4e0 Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1891&range=01 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1891&range=00-01 Stats: 55 lines in 3 files changed: 7 ins; 18 del; 30 mod Patch: https://git.openjdk.java.net/jdk/pull/1891.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/1891/head:pull/1891 PR: https://git.openjdk.java.net/jdk/pull/1891
