mdbx: the set of fixes.

2026-07-27 mdbx: update ChangeLog.
2026-07-27 mdbx: minor refine `page_retire_ex()`.
2026-07-27 mdbx-doc: split/restructure ChangeLog.
2026-07-27 mdbx: fix atomics-types.h for Embarcadero C11-atomics build on Windows.
2026-07-26 mdbx++: fix stupid MSVC warning in `mdbx::slice::as_pod()`.
2026-07-26 mdbx-tests: add `issue_gh0011`.
2026-07-26 mdbx: fix extra rdt-unlock in the failure path of `dxb_resize()`.
2026-07-26 mdbx: carefully handle the returned intermediate error codes in `meta_wipe_steady()`.
2026-07-26 mdbx: fix assertion parentheses in `mdbx_txn_renew()`.
2026-07-26 mdbx-make: fix checking Bash version.
2026-07-26 mdbx: refine `page_split()` to mark new pages with `P_STICKED` until finish.
2026-07-26 mdbx: track cursors for all modify/touch operations since new spilling could be triggered from `page_alloc()`.
2026-07-25 mdbx: add internal `cursor_stack()`.
2026-07-26 mdbx: introduce `P_STICKED` and stick new subroot until attach to a tree.
2026-07-26 mdbx: fix outer-clone flags in `cursor_clone_slightly()` when source is inner.
2026-07-25 mdbx-tests: add `issue_gh0010`.

Author: erthink

ChangeLog.md

@@ -17,6 +17,7 @@ $(error Please use GNU Make 3.81 or above)
 endif
 make_ge_4_1   := $(shell expr "$(MAKE_VERx3)" ">=" "  4  1")
 make_ge_4_4   := $(shell expr "$(MAKE_VERx3)" ">=" "  4  4")
+bash_lt_4.3   := $(shell expr "$${BASH_VERSION}" \< "4.3")
 SRC_PROBE_C   := $(shell [ -f mdbx.c ] && echo mdbx.c || echo src/osal.c)
 SRC_PROBE_CXX := $(shell [ -f mdbx.c++ ] && echo mdbx.c++ || echo src/mdbx.c++)
 UNAME         := $(shell uname -s 2>/dev/null || echo Unknown)
@@ -91,9 +92,13 @@ endif
 ifneq ($(make_ge_4_4),1)
 .NOTPARALLEL:
 WAIT         =
-STOCHASTIC   = echo "Skip running stochastic script since Bash service < 4.4"
 else
 WAIT         = .WAIT
+endif
+
+ifneq ($(bash_lt_4_3),0)
+STOCHASTIC   = echo "Skip running stochastic script since Bash < 4.3"
+else
 STOCHASTIC   = ./tests/stochastic.sh
 endif
 

GNUmakefile

@@ -1 +1 @@
-{ "git_describe": "v0.14.2-393-g2bb56af7", "git_timestamp": "2026-07-23T14:32:18+03:00", "git_tree": "4f35174d231d475c526f11bed2bb2e3c16a2a0f1", "git_commit": "2bb56af7c5ba43a3d6e1b35aac480b568ecd8916", "semver": "0.14.2.393" }
+{ "git_describe": "v0.14.2-422-g4e5641dd", "git_timestamp": "2026-07-27T15:51:14+03:00", "git_tree": "facdf7ae947696882632d84ad55009d02dba9126", "git_commit": "4e5641ddde88fb40e9e262d6a594a04798a05a14", "semver": "0.14.2.422" }

VERSION.json

@@ -1,4 +1,4 @@
-/* This file is part of the libmdbx amalgamated source code (v0.14.2-393-g2bb56af7 at 2026-07-23T14:32:18+03:00),
+/* This file is part of the libmdbx amalgamated source code (v0.14.2-422-g4e5641dd at 2026-07-27T15:51:14+03:00),
  * it is the template for libmdbx's config.h
  ******************************************************************************/
 

config.h.in

@@ -1,4 +1,4 @@
-/* This file is part of the libmdbx amalgamated source code (v0.14.2-393-g2bb56af7 at 2026-07-23T14:32:18+03:00).
+/* This file is part of the libmdbx amalgamated source code (v0.14.2-422-g4e5641dd at 2026-07-27T15:51:14+03:00).
  *
  * libmdbx (aka MDBX) is an extremely fast, compact, powerful, embeddedable, transactional key-value storage engine with
  * open-source code. MDBX has a specific set of properties and capabilities, focused on creating unique lightweight
@@ -24,7 +24,7 @@
 
 #define xMDBX_ALLOY 1  /* alloyed build */
 
-#define MDBX_BUILD_SOURCERY 88b82051a3cccffce9966c05fc37d1561d1483b604fd38d40bc4a8dac3faf03e_v0_14_2_393_g2bb56af7
+#define MDBX_BUILD_SOURCERY 624f34eebfab079ef5542c4887a13a78784c021750c63d4ed964a38ddd8cef12_v0_14_2_422_g4e5641dd
 
 #define LIBMDBX_INTERNALS
 #define MDBX_DEPRECATED
@@ -2412,7 +2412,8 @@ MDBX_MAYBE_UNUSED MDBX_NOTHROW_PURE_FUNCTION static inline uint32_t osal_bswap32
 /* Embarcadero Clang falls back to Dinkumware stdatomic.h on x86.
  * Fix incompatible atomic_* expansions for volatile _Atomic objects:
  * Dinkumware macros do (pobj)->_Atom which breaks on scalar _Atomic.
- * Use Clang __c11_atomic_* builtins directly instead. */
+ * Use Clang __c11_atomic_* builtins directly instead.
+ * Provide missing fence and memory-order macros for C mode. */
 #undef atomic_is_lock_free
 #define atomic_is_lock_free(obj) __c11_atomic_is_lock_free(sizeof(*(obj)))
 #undef atomic_store_explicit
@@ -2424,6 +2425,14 @@ MDBX_MAYBE_UNUSED MDBX_NOTHROW_PURE_FUNCTION static inline uint32_t osal_bswap32
   __c11_atomic_compare_exchange_strong((obj), (exp), (val), __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)
 #undef atomic_fetch_add
 #define atomic_fetch_add(obj, val) __c11_atomic_fetch_add((obj), (val), __ATOMIC_SEQ_CST)
+#undef atomic_thread_fence
+#define atomic_thread_fence(ord) __c11_atomic_thread_fence(ord)
+#ifndef memory_order_relaxed
+#define memory_order_relaxed __ATOMIC_RELAXED
+#define memory_order_acquire __ATOMIC_ACQUIRE
+#define memory_order_release __ATOMIC_RELEASE
+#define memory_order_seq_cst __ATOMIC_SEQ_CST
+#endif
 #define MDBX_HAVE_C11ATOMICS
 /* #endif __CODEGEARC__ */
 
@@ -2677,12 +2686,13 @@ typedef enum page_type {
   P_BAD = P_LEGACY_DIRTY /* explicit flag for invalid/bad page */,
   P_DUPFIX = 0x20u /* for MDBX_DUPFIXED records */,
   P_SUBP = 0x40u /* for MDBX_DUPSORT sub-pages */,
+  P_STICKED = 0x1000u /* must not be spilled */,
   P_SPILLED = 0x2000u /* spilled in parent txn */,
   P_LOOSE = 0x4000u /* page was dirtied then freed, can be reused */,
   P_FROZEN = 0x8000u /* used for retire page with known status */,
   P_TYPE = (P_BRANCH | P_LEAF | P_LARGE | P_META | P_DUPFIX | P_SUBP),
-  P_FLAGS = (P_BAD | P_SPILLED | P_LOOSE | P_FROZEN),
-  P_ILL_BITS = (uint16_t)~(P_BRANCH | P_LEAF | P_DUPFIX | P_LARGE | P_SPILLED),
+  P_FLAGS = (P_BAD | P_SPILLED | P_LOOSE | P_FROZEN | P_STICKED),
+  P_ILL_BITS = (uint16_t)~(P_BRANCH | P_LEAF | P_DUPFIX | P_LARGE | P_SPILLED | P_STICKED),
 
   page_broken = 0,
   page_large = P_LARGE,
@@ -3298,16 +3308,20 @@ __extern_C MDBX_NORETURN void panic_at_fmt(const struct MDBX_panic_point *const
       ENSURE_OBJ(obj, expr);                                                                                           \
   } while (0)
 
+MDBX_MAYBE_UNUSED static inline const void *txn2obj(const MDBX_txn *txn) { return txn; }
+MDBX_MAYBE_UNUSED static inline const void *cursor2obj(const MDBX_cursor *mc) { return mc; }
+MDBX_MAYBE_UNUSED static inline const void *env2obj(const MDBX_env *env) { return env; }
+
 #define ASSERT(expr) CHECK0(expr)
-#define eASSERT0(env, expr) CHECK0_OBJ(env, expr)
-#define eASSERT1(env, expr) CHECK1_OBJ(env, expr)
-#define eASSERT2(env, expr) CHECK2_OBJ(env, expr)
-#define tASSERT0(txn, expr) CHECK0_OBJ(txn, expr)
-#define tASSERT1(txn, expr) CHECK1_OBJ(txn, expr)
-#define tASSERT2(txn, expr) CHECK2_OBJ(txn, expr)
-#define cASSERT0(mc, expr) CHECK0_OBJ(mc, expr)
-#define cASSERT1(mc, expr) CHECK1_OBJ(mc, expr)
-#define cASSERT2(mc, expr) CHECK2_OBJ(mc, expr)
+#define eASSERT0(env, expr) CHECK0_OBJ(env2obj(env), expr)
+#define eASSERT1(env, expr) CHECK1_OBJ(env2obj(env), expr)
+#define eASSERT2(env, expr) CHECK2_OBJ(env2obj(env), expr)
+#define tASSERT0(txn, expr) CHECK0_OBJ(txn2obj(txn), expr)
+#define tASSERT1(txn, expr) CHECK1_OBJ(txn2obj(txn), expr)
+#define tASSERT2(txn, expr) CHECK2_OBJ(txn2obj(txn), expr)
+#define cASSERT0(mc, expr) CHECK0_OBJ(cursor2obj(mc), expr)
+#define cASSERT1(mc, expr) CHECK1_OBJ(cursor2obj(mc), expr)
+#define cASSERT2(mc, expr) CHECK2_OBJ(cursor2obj(mc), expr)
 
 /* --------------------------------------------------------------------------------------------------------------- */