JDK-8014478 : EnableTracing: output from multiple threads may be mixed together
  • Type: Bug
  • Component: hotspot
  • Sub-Component: svc
  • Affected Version: hs24,hs25
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2013-05-14
  • Updated: 2013-06-26
  • Resolved: 2013-05-15
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JDK 7 Other
7u40Fixed hs24Fixed
Description
Output from multiple threads may be mixed together when using EnableTracing.
Comments
The solution adds a -XX VM flag " UseLockedTracing" to enable use of a ttyLocker during tracing. This is not enabled by default as it may not be valid to acquire, or block acquiring, a lock in all event tracing contexts. Hence this is an opt-in mechanism.
15-05-2013
http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2013-May/007004.html and continued in http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2013-May/007102.html
14-05-2013