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Author SHA1 Message Date
Antonios Printezis
0c660e1f60 6991377: G1: race between concurrent refinement and humongous object allocation 
There is a race between the concurrent refinement threads and the humongous object allocation that can cause the concurrent refinement threads to corrupt the part of the BOT that it is being initialized by the humongous object allocation operation. The solution is to do the humongous object allocation in careful steps to ensure that the concurrent refinement threads always have a consistent view over the BOT, region contents, and top. The fix includes some very minor tidying up in sparsePRT.

Reviewed-by: jcoomes, johnc, ysr
 2010-10-16 17:12:19 -04:00
John Cuthbertson
f6acb9efb0 6988458: G1: assert(mr.end() <= _cm->finger()) failed: otherwise the region shouldn't be on the stack 
The changes from 6941395 did not clear the CMTask::_aborted_region fields when concurrent marking aborted because of overflow. As a result, the next time around we could see a memory region whose start address was above the global finger and the assertion tripped. Moved the clearing of the aborted regions to ConcurrentMark::clear_marking_state, which is executed on all of the exit paths.

Reviewed-by: tonyp, ysr, jmasa
 2010-10-18 15:01:41 -07:00
Antonios Printezis
0c9bfb6003 6992189: G1: inconsistent base used in sparse rem set iterator 
The remembered set iterator for sparse tables incorrectly assumes that index 0 corresponds to the bottom of the heap, not address 0 as it is the case.

Reviewed-by: ysr, jmasa
 2010-10-15 17:26:56 -04:00
Antonios Printezis
e79a62412f 6990359: G1: don't push a stolen entry on the taskqueue, deal with it directly 
When an entry is stolen, don't push it on the task queue but process it directly.

Reviewed-by: iveresov, ysr, jcoomes
 2010-10-14 10:38:14 -04:00
John Coomes
d85b042fca 6989448: G1: refactor and simplify G1ParScanThreadState 
Reviewed-by: iveresov, tonyp
 2010-10-12 11:29:45 -07:00
John Cuthbertson
02bad20969 6971296: G1: simplify G1RemSet class hierarchy 
Remove G1RemSet base class and StupidG1RemSet class; rename HRInto_G1RemSet to just G1RemSet.

Reviewed-by: ysr, tonyp
 2010-10-12 09:36:48 -07:00
John Coomes
cdc9022728 Merge 2010-10-08 09:29:09 -07:00
Vladimir Kozlov
68f9001261 Merge 2010-10-06 14:18:32 -07:00
Tom Rodriguez
f3c22cd1e2 6989736: fix mapfile warnings on solaris 
Reviewed-by: kvn, iveresov, jcoomes
 2010-10-05 17:38:40 -07:00
Tom Rodriguez
84e48aee05 6988018: dtrace/hotspot/MethodInvocation/MethodInvocation002 crashes with client compiler 
Reviewed-by: iveresov, kvn, kamg
 2010-10-05 11:16:12 -07:00
Vladimir Kozlov
c5191a8103 6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big 
Set upper limit 256 for ObjectAlignmentInBytes value.

Reviewed-by: never, iveresov
 2010-10-05 08:57:20 -07:00
Igor Veresov
32ebbc92ec 6989368: Regression in scimark2.MonteCarlo in jdk7_b112 on Linux 
Fix ciMethod::instructions_size() to return correct value

Reviewed-by: kvn, twisti
 2010-10-05 00:19:21 -07:00
Tom Rodriguez
f591ed981d 6968348: Byteswapped memory access can point to wrong location after JIT 
Reviewed-by: twisti, kvn, iveresov
 2010-10-04 17:09:18 -07:00
Erik Trimble
3ee389a913 Added tag hs20-b01 for changeset 75ef8813e3e2 2010-10-01 18:04:36 -07:00
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