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6978187: G1: assert(ParallelGCThreads> 1 || n_yielded() == _hrrs->occupied()) strikes again
Summary: An evacuation failure while copying the roots caused an object, A, to be forwarded to itself. During the subsequent RSet updating a reference to A was processed causing the reference to be added to the RSet of A's heap region. As a result of adding to the remembered set we ran into the issue described in 6930581 - the sparse table expanded and the RSet scanning code walked the cards in one instance of RHashTable (_cur) while the occupied() counts the cards in the expanded table (_next).
Reviewed-by: tonyp, iveresov
author | johnc |
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date | Tue, 16 Nov 2010 14:07:33 -0800 |
parents | e703499b4b51 |
children | a197210cb4ae 4ca65400aa33 |
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^build/ ^dist/ /nbproject/private/ ^src/share/tools/hsdis/build/ ^src/share/tools/IdealGraphVisualizer/[a-zA-Z0-9]*/build/ ^src/share/tools/IdealGraphVisualizer/build/ ^src/share/tools/IdealGraphVisualizer/dist/