Ensure all mmaped files are marked so they will not be part of any coredump.

1 files changed, 1 insertions, 0 deletions

diff --git a/searchlib/src/vespa/searchlib/util/fileutil.cpp b/searchlib/src/vespa/searchlib/util/fileutil.cpp
index cdeca9ce95c..c2f86224312 100644
--- a/searchlib/src/vespa/searchlib/util/fileutil.cpp
+++ b/searchlib/src/vespa/searchlib/util/fileutil.cpp
@@ -36,6 +36,7 @@ LoadedMmap::LoadedMmap(const vespalib::string &fileName)
             if (sz) {
                 void *tmpBuffer = mmap(nullptr, sz, PROT_READ, MAP_PRIVATE, fd.fd(), 0);
                 if (tmpBuffer != MAP_FAILED) {
+                    madvise(tmpBuffer, sz, MADV_DONTDUMP);
                     _mapSize = sz;
                     _mapBuffer = tmpBuffer;
                     uint32_t hl = GenericHeader::getMinSize();