From c2f970c32b527660a33fa513a76d913c812dcf7c Mon Sep 17 00:00:00 2001 From: Jason Evans Date: Thu, 5 May 2016 17:45:02 -0700 Subject: Modify pages_map() to support mapping uncommitted virtual memory. If the OS overcommits: - Commit all mappings in pages_map() regardless of whether the caller requested committed memory. - Linux-specific: Specify MAP_NORESERVE to avoid unfortunate interactions with heuristic overcommit mode during fork(2). This resolves #193. --- configure.ac | 2 ++ 1 file changed, 2 insertions(+) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index 1a1c9704..7f19715d 100644 --- a/configure.ac +++ b/configure.ac @@ -305,6 +305,7 @@ case "${host}" in *-*-freebsd*) CFLAGS="$CFLAGS" abi="elf" + AC_DEFINE([JEMALLOC_SYSCTL_VM_OVERCOMMIT], [ ]) AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ]) force_lazy_lock="1" ;; @@ -329,6 +330,7 @@ case "${host}" in CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE" abi="elf" AC_DEFINE([JEMALLOC_HAS_ALLOCA_H]) + AC_DEFINE([JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY], [ ]) AC_DEFINE([JEMALLOC_PURGE_MADVISE_DONTNEED], [ ]) AC_DEFINE([JEMALLOC_THREADED_INIT], [ ]) AC_DEFINE([JEMALLOC_USE_CXX_THROW], [ ]) -- cgit v1.2.3