Maintenance Notice

The bugs.java.com site will be undergoing maintenance on 15th Dec 2017 21:00 PST to 16th Dec 2017 1:00 AM PST.
JDK-8006954 : GC Cause equals No GC for CMS background collection in the trace GC event
  • Type: Bug
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: hs24,hs25
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2013-01-25
  • Updated: 2013-06-26
  • Resolved: 2013-02-14
The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availabitlity Release.

To download the current JDK release, click here.
JDK 7 Other
7u40Fixed hs24Fixed
Description
In the /vm/gc/garbage_collection trace event, the field "cause" has value "No GC" for CMS concurrent background collection. The GC logs correctly states that the cause is "CMS Initial Mark". The trace event should also display that the cause is "CMS Initial Mark".

ILW:
Impact => Low
Likelihood => High
Workaround => Medium

P4
Comments
Verified on: 1.7.0_40 b28 HS:24.0 b46
2013-05-30