From b66e3214d8a104669c2ec05ae91ebc26a8f5ab78 Mon Sep 17 00:00:00 2001 From: daanx Date: Mon, 24 Apr 2023 09:08:12 -0700 Subject: [PATCH] be more strict on initially_zero for arena allocation --- src/arena.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/arena.c b/src/arena.c index 7616bdf8..be1a9ebe 100644 --- a/src/arena.c +++ b/src/arena.c @@ -234,7 +234,9 @@ static mi_decl_noinline void* mi_arena_try_alloc_at(mi_arena_t* arena, size_t ar } // set the dirty bits (todo: no need for an atomic op here?) - memid->initially_zero = _mi_bitmap_claim_across(arena->blocks_dirty, arena->field_count, needed_bcount, bitmap_index, NULL); + if (arena->memid.initially_zero && arena->blocks_dirty != NULL) { + memid->initially_zero = _mi_bitmap_claim_across(arena->blocks_dirty, arena->field_count, needed_bcount, bitmap_index, NULL); + } // set commit state if (arena->blocks_committed == NULL) {