diff --git a/include/mimalloc/types.h b/include/mimalloc/types.h
index 1e33b501..48436724 100644
--- a/include/mimalloc/types.h
+++ b/include/mimalloc/types.h
@@ -139,8 +139,8 @@ terms of the MIT license. A copy of the license can be found in the file
 // We never allocate more than PTRDIFF_MAX (see also <https://sourceware.org/ml/libc-announce/2019/msg00001.html>)
 #define MI_MAX_ALLOC_SIZE        PTRDIFF_MAX
 
-// Minimal commit for a page on-demand commit (should be >= OS page size, and >= MI_ARENA_SLICE_SIZE for correct stats)
-#define MI_PAGE_MIN_COMMIT_SIZE  MI_ARENA_SLICE_SIZE
+// Minimal commit for a page on-demand commit (should be >= OS page size)
+#define MI_PAGE_MIN_COMMIT_SIZE  MI_ARENA_SLICE_SIZE // (4*MI_KiB) 
 
 // ------------------------------------------------------
 // Arena's are large reserved areas of memory allocated from
diff --git a/src/arena.c b/src/arena.c
index b0fa81b9..91c3189c 100644
--- a/src/arena.c
+++ b/src/arena.c
@@ -832,10 +832,15 @@ void _mi_arenas_page_free(mi_page_t* page) {
       const size_t total_slices = page->slice_committed / MI_ARENA_SLICE_SIZE;  // conservative
       //mi_assert_internal(mi_bitmap_is_clearN(arena->slices_committed, page->memid.mem.arena.slice_index, total_slices));
       mi_assert_internal(page->memid.mem.arena.slice_count >= total_slices);
-      mi_assert_internal(total_slices > 0);
       if (total_slices > 0) {
         mi_bitmap_setN(arena->slices_committed, page->memid.mem.arena.slice_index, total_slices, NULL);
       }
+      // any left over?
+      const size_t extra = page->slice_committed % MI_ARENA_SLICE_SIZE;
+      if (extra > 0) {
+        // pretend it was decommitted already
+        mi_os_stat_decrease(committed, extra);
+      }
     }
     else {
       mi_assert_internal(mi_bitmap_is_setN(arena->slices_committed, page->memid.mem.arena.slice_index, page->memid.mem.arena.slice_count));
@@ -1314,7 +1319,7 @@ static void mi_debug_color(char* buf, size_t* k, mi_ansi_color_t color) {
 }
 
 static int mi_page_commit_usage(mi_page_t* page) {
-  if (mi_page_size(page) <= MI_PAGE_MIN_COMMIT_SIZE) return 100;
+  // if (mi_page_size(page) <= MI_PAGE_MIN_COMMIT_SIZE) return 100;
   const size_t committed_size = mi_page_committed(page);
   const size_t used_size = page->used * mi_page_block_size(page);
   return (int)(used_size * 100 / committed_size);
diff --git a/src/options.c b/src/options.c
index 9925ac00..efe7ae1e 100644
--- a/src/options.c
+++ b/src/options.c
@@ -430,7 +430,7 @@ void _mi_fputs(mi_output_fun* out, void* arg, const char* prefix, const char* me
 // Define our own limited `fprintf` that avoids memory allocation.
 // We do this using `_mi_vsnprintf` with a limited buffer.
 static void mi_vfprintf( mi_output_fun* out, void* arg, const char* prefix, const char* fmt, va_list args ) {
-  char buf[768];
+  char buf[992];
   if (fmt==NULL) return;
   if (!mi_recurse_enter()) return;
   _mi_vsnprintf(buf, sizeof(buf)-1, fmt, args);