From dd58a58692683ff7db568d3a15acd559bdad4934 Mon Sep 17 00:00:00 2001
From: Con Kolivas <kernel@kolivas.org>
Date: Mon, 15 Feb 2021 15:43:06 +1100
Subject: [PATCH] Put a lower bound on the amount of memory available during
 malloc testing and shrinking the window.

---
 stream.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/stream.c b/stream.c
index 443f568..777855b 100644
--- a/stream.c
+++ b/stream.c
@@ -985,6 +985,14 @@ retest_malloc:
 	testmalloc = malloc(testsize);
 	if (!testmalloc) {
 		limit = limit / 10 * 9;
+		if (limit < 100000000) {
+			/* If we can't even allocate 100MB then we'll never
+			 * succeed */
+			print_err("Unable to allocate enough memory for operation\n");
+			dealloc(sinfo->s);
+			dealloc(sinfo);
+			return NULL;
+		}
 		goto retest_malloc;
 	}
 	if (!NO_COMPRESS) {