Mercurial > hg > openjdk > hsx17
changeset 1292:b8a8eafd038d
6921710: G1: assert(new_finger >= _finger && new_finger < _region_limit,"invariant")
Summary: If CM task was aborted while scanning the last object of the specified region and the size of that object is equal to bitmap's granularity then the next offset would be equal or over the region limit which is exactly what the assertion states.
Reviewed-by: ysr, tonyp, jmasa
author | apetrusenko |
---|---|
date | Mon, 08 Mar 2010 04:07:12 -0800 |
parents | 23decd59cae7 |
children | 34571037987c |
files | src/share/vm/gc_implementation/g1/concurrentMark.cpp |
diffstat | 1 files changed, 8 insertions(+), 1 deletions(-) [+] |
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--- a/src/share/vm/gc_implementation/g1/concurrentMark.cpp Wed Mar 03 13:26:19 2010 -0800 +++ b/src/share/vm/gc_implementation/g1/concurrentMark.cpp Mon Mar 08 04:07:12 2010 -0800 @@ -3704,7 +3704,14 @@ // enough to point to the next possible object header (the // bitmap knows by how much we need to move it as it knows its // granularity). - move_finger_to(_nextMarkBitMap->nextWord(_finger)); + assert(_finger < _region_limit, "invariant"); + HeapWord* new_finger = _nextMarkBitMap->nextWord(_finger); + // Check if bitmap iteration was aborted while scanning the last object + if (new_finger >= _region_limit) { + giveup_current_region(); + } else { + move_finger_to(new_finger); + } } } // At this point we have either completed iterating over the