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fix free bug for meta data

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daanx 2024-12-12 19:55:45 -08:00
parent d5c4a16e58
commit 637de624b3
1 changed files with 12 additions and 1 deletions
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13
src/arena-meta.c
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@ -145,7 +145,7 @@ void _mi_meta_free(void* p, size_t size, mi_memid_t memid) {
mi_assert_internal(mi_bitmap_is_clearN(&mpage->blocks_free, block_idx, block_count)); mi_assert_internal(mi_bitmap_is_clearN(&mpage->blocks_free, block_idx, block_count));
// we zero on free (and on the initial page allocation) so we don't need a "dirty" map // we zero on free (and on the initial page allocation) so we don't need a "dirty" map
_mi_memzero_aligned(mi_meta_block_start(mpage, block_idx), block_count*MI_META_BLOCK_SIZE); _mi_memzero_aligned(mi_meta_block_start(mpage, block_idx), block_count*MI_META_BLOCK_SIZE);
mi_bitmap_clearN(&mpage->blocks_free, block_idx, block_count); mi_bitmap_setN(&mpage->blocks_free, block_idx, block_count,NULL);
} }
else if (mi_memid_is_os(memid)) { else if (mi_memid_is_os(memid)) {
_mi_os_free(p, size, memid); _mi_os_free(p, size, memid);
@ -154,3 +154,14 @@ void _mi_meta_free(void* p, size_t size, mi_memid_t memid) {
mi_assert_internal(mi_memid_needs_no_free(memid)); mi_assert_internal(mi_memid_needs_no_free(memid));
} }
} }
bool _mi_meta_is_meta_page(void* p)
{
mi_meta_page_t* mpage0 = mi_atomic_load_ptr_acquire(mi_meta_page_t, &mi_meta_pages);
mi_meta_page_t* mpage = mpage0;
while (mpage != NULL) {
if ((void*)mpage == p) return true;
mpage = mi_meta_page_next(mpage);
}
return false;
}