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JDK-7031895 : Regression caused by 6984287 needs to be fixed in 6uxx

Details
Type:
Bug
Submit Date:
2011-03-29
Status:
Closed
Updated Date:
2011-03-29
Project Name:
JDK
Resolved Date:
2011-03-29
Component:
hotspot
OS:
solaris
Sub-Component:
gc
CPU:
sparc
Priority:
P3
Resolution:
Duplicate
Affected Versions:
6u25
Fixed Versions:
6-pool

Related Reports
Duplicate:
Relates:

Sub Tasks

Description
Fix for 6984287: Regularize how GC parallel workers are specified, caused CMS to hang:

-----------------  lwp# 3 / thread# 3  --------------------
 fffffd7ffedfd262 ???????? () + ffffffffffb36252
 fffffd7ffe9fa619 __1cTCMSRefProcTaskProxyNdo_work_steal6MipnbECMSParDrainMarkingStackClosure_pnWCMSParKeepAliveClosure_pi_v_ () + 7b9
 fffffd7ffe9f9d83 __1cTCMSRefProcTaskProxyEwork6Mi_v_ () + 293
 fffffd7ffeed2238 __1cKGangWorkerEloop6M_v_ () + d8
 fffffd7ffeed2129 __1cKGangWorkerDrun6M_v_ () + 29
 fffffd7ffed7b849 java_start () + 1f9
 fffffd7fff2c6ddb _thr_setup () + 5b
 fffffd7fff2c7010 _lwp_start ()
-----------------  lwp# 4 / thread# 4  --------------------
 fffffd7ffee52ed7 __1cWParallelTaskTerminatorRoffer_termination6MpnUTerminatorTerminator__b_ () + c7
 fffffd7ffe9fa619 __1cTCMSRefProcTaskProxyNdo_work_steal6MipnbECMSParDrainMarkingStackClosure_pnWCMSParKeepAliveClosure_pi_v_ () + 7b9
 fffffd7ffe9f9d83 __1cTCMSRefProcTaskProxyEwork6Mi_v_ () + 293
 fffffd7ffeed2238 __1cKGangWorkerEloop6M_v_ () + d8
 fffffd7ffeed2129 __1cKGangWorkerDrun6M_v_ () + 29
 fffffd7ffed7b849 java_start () + 1f9
 fffffd7fff2c6ddb _thr_setup () + 5b
 fffffd7fff2c7010 _lwp_start ()

This issue is fixed in 7 with 6668573: CMS: reference processing crash if ParallelCMSThreads > ParallelGCThreads.

This needs to be fixed in jdk 6 as well.

                                    

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