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-rw-r--r--src/input/input_file.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/input/input_file.c b/src/input/input_file.c
index d57eaacb9..c755a84a8 100644
--- a/src/input/input_file.c
+++ b/src/input/input_file.c
@@ -426,7 +426,7 @@ static int file_plugin_open (input_plugin_t *this_gen ) {
}
#ifdef HAVE_MMAP
- tmp_size = sbuf.st_size;
+ tmp_size = sbuf.st_size; /* may cause truncation - if it does, DON'T mmap! */
if ((tmp_size == sbuf.st_size) &&
( (this->mmap_base = mmap(NULL, tmp_size, PROT_READ, MAP_SHARED, this->fh, 0)) != (void*)-1 )) {
this->mmap_on = 1;