RFR: 8274794: Print all owned locks in hs_err file

Coleen Phillimore coleenp at openjdk.java.net
Thu Oct 14 21:00:09 UTC 2021


See CR for details.  This saves the created mutex in a mutex_array during Mutex construction so that all Mutex, not just the ones in mutexLocker.cpp can be printed in the hs_err file.  ThreadCritical is used to protect the mutex_array, and to avoid UB should be used when printing the owned locks, but since that is done during error handling, this seemed better not to lock during error handling.  There's 0 probability that another thread will be creating a lock during this error handling anyway.
Tested with tier1-8.

-------------

Commit messages:
 - 8274794: Print all owned locks in hs_err file

Changes: https://git.openjdk.java.net/jdk/pull/5958/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5958&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8274794
  Stats: 284 lines in 8 files changed: 199 ins; 79 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5958.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5958/head:pull/5958

PR: https://git.openjdk.java.net/jdk/pull/5958


More information about the hotspot-dev mailing list