workload is getting 'initialized' with stack garbage, so later conditional check of !workload[0] in report() is invalid. Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky(a)gmail.com&gt; --- src/main.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/main.cpp b/src/main.cpp index d8e2a47..7a1b976 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -356,7 +356,7 @@ int main(int argc, char **argv) int c; bool wantreport = FALSE; char filename[4096]; - char workload[4096]; + char workload[4096] = {0,}; int iterations = 1; #ifndef DISABLE_TRYCATCH