:: commit dc1d6a3c61525e9d7e82db0f005be048b5f9c84b

diff --git a/stage23/protos/stivale.c b/stage23/protos/stivale.c
index e14e9b7b..585a3501 100644
--- a/stage23/protos/stivale.c
+++ b/stage23/protos/stivale.c
@@ -302,8 +302,12 @@ void stivale_load(char *config, char *cmdline) {
     if (bits == 64)
         pagemap = stivale_build_pagemap(want_5lv, false, NULL, 0, false, 0, 0);
 
-    // Reserve 32K at 0x70000
-    memmap_alloc_range(0x70000, 0x8000, MEMMAP_USABLE, true, true, false, false);
+    // Reserve 32K at 0x70000 if possible
+    if (!memmap_alloc_range(0x70000, 0x8000, MEMMAP_USABLE, true, false, false, false)) {
+        if ((stivale_hdr.flags & (1 << 4)) == 0) {
+            panic("stivale: Could not allocate low memory area");
+        }
+    }
 
     struct e820_entry_t *mmap_copy = ext_mem_alloc(256 * sizeof(struct e820_entry_t));
 
diff --git a/stage23/protos/stivale2.c b/stage23/protos/stivale2.c
index fd7b61ff..2981b1d4 100644
--- a/stage23/protos/stivale2.c
+++ b/stage23/protos/stivale2.c
@@ -682,8 +682,12 @@ have_tm_tag:;
         ext_mem_alloc(sizeof(struct stivale2_struct_tag_memmap) +
                        sizeof(struct e820_entry_t) * 256);
 
-    // Reserve 32K at 0x70000
-    memmap_alloc_range(0x70000, 0x8000, MEMMAP_USABLE, true, true, false, false);
+    // Reserve 32K at 0x70000, if possible
+    if (!memmap_alloc_range(0x70000, 0x8000, MEMMAP_USABLE, true, false, false, false)) {
+        if ((stivale2_hdr.flags & (1 << 4)) == 0) {
+            panic("stivale2: Could not allocate low memory area");
+        }
+    }
 
     size_t mmap_entries;
     struct e820_entry_t *mmap = get_memmap(&mmap_entries);