.jcheck/conf

Mon, 05 Apr 2010 12:19:22 -0400

author
tonyp
date
Mon, 05 Apr 2010 12:19:22 -0400
changeset 1793
72f725c5a7be
parent 437
7836be3e92d0
child 2926
e6e7d76b2bd3
permissions
-rw-r--r--

6940310: G1: MT-unsafe calls to CM::region_stack_push() / CM::region_stack_pop()
Summary: Calling the methods region_stack_push() and region_stack_pop() concurrent is not MT-safe. The assumption is that we will only call region_stack_push() during a GC pause and region_stack_pop() during marking. Unfortunately, we also call region_stack_push() during marking which seems to be introducing subtle marking failures. This change introduces lock-based methods for pushing / popping to be called during marking.
Reviewed-by: iveresov, johnc

mr@437 1 project=jdk7

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