# HG changeset patch
# User iveresov
# Date 1241821210 25200
# Node ID 622212a69394d53de1c0c0603a17396e8e028199
# Parent  9b3a41ccc9273ba3ceda7c437b38eef3474ce08c
6838842: NUMA allocator: Segfault during startup on Linux
Summary: Restored os::free_memory() semantics
Reviewed-by: apetrusenko

diff -r 9b3a41ccc927 -r 622212a69394 src/os/linux/vm/os_linux.cpp
--- a/src/os/linux/vm/os_linux.cpp	Thu May 07 17:09:48 2009 -0700
+++ b/src/os/linux/vm/os_linux.cpp	Fri May 08 15:20:10 2009 -0700
@@ -2314,7 +2314,8 @@
 void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) { }
 
 void os::free_memory(char *addr, size_t bytes) {
-  uncommit_memory(addr, bytes);
+  ::mmap(addr, bytes, PROT_READ | PROT_WRITE,
+         MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0);
 }
 
 void os::numa_make_global(char *addr, size_t bytes) {