Mercurial > hg > graal-jvmci-8
diff src/share/vm/gc_implementation/g1/g1SATBCardTableModRefBS.cpp @ 1358:72f725c5a7be
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
author | tonyp |
---|---|
date | Mon, 05 Apr 2010 12:19:22 -0400 |
parents | d4197f8d516a |
children | c18cbe5936b8 |