# HG changeset patch
# User iveresov
# Date 1312587841 25200
# Node ID a20e6e447d3dff7d0c554bb778eae5227b1dd9ee
# Parent  6aa4feb8a36605d58c8cd66e6fd4da1396446753
7060842: UseNUMA crash with UseHugreTLBFS running SPECjvm2008
Summary: Use mmap() instead of madvise(MADV_DONTNEED) to uncommit pages
Reviewed-by: ysr

diff -r 6aa4feb8a366 -r a20e6e447d3d src/os/linux/vm/os_linux.cpp
--- a/src/os/linux/vm/os_linux.cpp	Tue Aug 02 12:13:13 2011 -0700
+++ b/src/os/linux/vm/os_linux.cpp	Fri Aug 05 16:44:01 2011 -0700
@@ -2534,7 +2534,7 @@
 }
 
 void os::free_memory(char *addr, size_t bytes) {
-  ::madvise(addr, bytes, MADV_DONTNEED);
+  commit_memory(addr, bytes, false);
 }
 
 void os::numa_make_global(char *addr, size_t bytes) {