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gh-115103: Enable internal mimalloc assertions in debug builds #116343

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merged 1 commit into from
Mar 5, 2024
Merged

gh-115103: Enable internal mimalloc assertions in debug builds #116343

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2 changes: 1 addition & 1 deletion Include/internal/pycore_mimalloc.h
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ typedef enum {
# define MI_DEBUG_FREED PYMEM_DEADBYTE
# define MI_DEBUG_PADDING PYMEM_FORBIDDENBYTE
#ifdef Py_DEBUG
# define MI_DEBUG 1
# define MI_DEBUG 2
#else
# define MI_DEBUG 0
#endif
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3 changes: 3 additions & 0 deletions Objects/mimalloc/alloc.c
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Expand Up @@ -609,7 +609,10 @@ bool _mi_free_delayed_block(mi_block_t* block) {
// get segment and page
const mi_segment_t* const segment = _mi_ptr_segment(block);
mi_assert_internal(_mi_ptr_cookie(segment) == segment->cookie);
#ifndef Py_GIL_DISABLED
// The GC traverses heaps of other threads, which can trigger this assert.
mi_assert_internal(_mi_thread_id() == segment->thread_id);
#endif
mi_page_t* const page = _mi_segment_page_of(segment, block);

// Clear the no-delayed flag so delayed freeing is used again for this page.
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