$OpenBSD: patch-base_memory_madv_free_discardable_memory_posix_cc,v 1.1 2020/02/22 12:33:20 robert Exp $

Index: base/memory/madv_free_discardable_memory_posix.cc
--- base/memory/madv_free_discardable_memory_posix.cc.orig
+++ base/memory/madv_free_discardable_memory_posix.cc
@@ -267,6 +267,10 @@ void MadvFreeDiscardableMemoryPosix::SetKeepMemoryForT
 
 bool MadvFreeDiscardableMemoryPosix::IsResident() const {
   DFAKE_SCOPED_RECURSIVE_LOCK(thread_collision_warner_);
+// XXX mincore
+#if defined(OS_BSD)
+  return false;
+#else
 #ifdef OS_MACOSX
   std::vector<char> vec(allocated_pages_);
 #else
@@ -282,6 +286,7 @@ bool MadvFreeDiscardableMemoryPosix::IsResident() cons
       return false;
   }
   return true;
+#endif
 }
 
 bool MadvFreeDiscardableMemoryPosix::IsDiscarded() const {
