From 6bfc90019f070832cce9f11bdecf707ffeead759 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A1draig=20Brady?= <P@draigBrady.com>
Date: Mon, 21 Sep 2026 13:50:40 +0100
Subject: [PATCH] tests: od: avoid large mem allocation due to MALLOC_PERTURB_

 $ testmem() {
    env time -f %M \
    make TESTS="$*"RUN_VERY_EXPENSIVE_TESTS=yes SUBDIRS=. check
   }

 # Before change
 $ testmem tests/od/big-w.sh
 2965404 # 3GB

 # After change
 $ testmem tests/od/big-w.sh
 14136

* tests/od/big-w.sh: Disable MALLOC_PERTURB_.
Also remove the redundant setting of LC_ALL.
---
 tests/od/big-w.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/od/big-w.sh b/tests/od/big-w.sh
index 7f76bdd05..726089ab2 100755
--- a/tests/od/big-w.sh
+++ b/tests/od/big-w.sh
@@ -21,7 +21,8 @@ print_ver_ od
 very_expensive_
 require_bash_as_SHELL_ # for >()
 
-export LC_ALL=C
+# Minimize actual memory use
+export MALLOC_PERTURB_=0
 
 cat >exp <<'EOF' || framework_failure_
 0000000 x >x<