ndb - bug#34378

  Using more than 16g can cause record-pool ptr.i values to overflow
  Fix by splitting memory into 2 zones, lo(16g)/hi(rest)
  When record pools only use zone_lo, and datamemory, buffers etc...can use any

storage/ndb/src/kernel/blocks/lgman.cpp

@@ -918,7 +918,7 @@ Lgman::alloc_logbuffer_memory(Ptr<Logfile_group> ptr, Uint32 bytes)
     {
       Uint32 ptrI;
       Uint32 cnt = pages > 64 ? 64 : pages;
-      m_ctx.m_mm.alloc(&ptrI, &cnt, 1);
+      m_ctx.m_mm.alloc_pages(RG_DISK_OPERATIONS, &ptrI, &cnt, 1);
       if (cnt)
       {
 	Buffer_idx range;
@@ -1037,7 +1037,7 @@ Lgman::free_logbuffer_memory(Ptr<Logfile_group> ptr)
     ndbrequire(map.next(it));
     tmp[1] = *it.data;
     
-    m_ctx.m_mm.release(range.m_ptr_i, range.m_idx);
+    m_ctx.m_mm.release_pages(RG_DISK_OPERATIONS, range.m_ptr_i, range.m_idx);
     map.next(it);
   }
   map.release();

storage/ndb/src/kernel/vm/Pool.cpp

@@ -20,7 +20,8 @@
 void*
 Pool_context::alloc_page(Uint32 type_id, Uint32 *i)
 {
-  return m_block->m_ctx.m_mm.alloc_page(type_id, i);
+  return m_block->m_ctx.m_mm.alloc_page(type_id, i,
+                                        Ndbd_mem_manager::NDB_ZONE_LO);
 }
   
 void 

storage/ndb/src/kernel/vm/ndbd_malloc_impl.hpp

@@ -20,6 +20,7 @@
 #include <Bitmask.hpp>
 #include <assert.h>
 #include "Pool.hpp"
+#include <Vector.hpp>
 
 /**
  * 13 -> 8192 words -> 32768 bytes
@@ -59,16 +60,19 @@ public:
   bool init(bool allow_alloc_less_than_requested = true);
   void* get_memroot() const { return (void*)m_base_page;}
   
-  void alloc(Uint32* ret, Uint32 *pages, Uint32 min_requested);
-  void release(Uint32 start, Uint32 cnt);
-  
   void dump() const ;
   
-  void* alloc_page(Uint32 type, Uint32* i);
+  enum AllocZone
+  {
+    NDB_ZONE_LO  = 0, // Only allocate with page_id < (1 << 13)
+    NDB_ZONE_ANY = 1  // Allocate with any page_id
+  };
+
+  void* alloc_page(Uint32 type, Uint32* i, enum AllocZone);
   void release_page(Uint32 type, Uint32 i);
   
-  void* alloc_pages(Uint32 type, Uint32* i, Uint32 *cnt, Uint32 min = 1);
-  void release_pages(Uint32 type, Uint32 i, void*p, Uint32 cnt);
+  void alloc_pages(Uint32 type, Uint32* i, Uint32 *cnt, Uint32 min = 1);
+  void release_pages(Uint32 type, Uint32 i, Uint32 cnt);
   
   /**
    * Compute 2log of size 
@@ -80,25 +84,29 @@ public:
 private:
   void grow(Uint32 start, Uint32 cnt);
 
-#define XX_RL_COUNT 3
+#define XX_RL_COUNT 4
   /**
    * Return pointer to free page data on page
    */
   static Free_page_data* get_free_page_data(Alloc_page*, Uint32 idx);
-  Bitmask<1> m_used_bitmap_pages;
+  Vector<Uint32> m_used_bitmap_pages;
   
-  Uint32 m_buddy_lists[16];
+  Uint32 m_buddy_lists[2][16];
   Resource_limit m_resource_limit[XX_RL_COUNT]; // RG_COUNT in record_types.hpp
   Alloc_page * m_base_page;
   
-  void release_impl(Uint32 start, Uint32 cnt);  
-  void insert_free_list(Uint32 start, Uint32 cnt);
-  Uint32 remove_free_list(Uint32 start, Uint32 list);
+  void release_impl(Uint32 zone, Uint32 start, Uint32 cnt);  
+  void insert_free_list(Uint32 zone, Uint32 start, Uint32 cnt);
+  Uint32 remove_free_list(Uint32 zone, Uint32 start, Uint32 list);
 
   void set(Uint32 first, Uint32 last);
   void clear(Uint32 first, Uint32 last);
   void clear_and_set(Uint32 first, Uint32 last);
   Uint32 check(Uint32 first, Uint32 last);
+
+  void alloc(AllocZone, Uint32* ret, Uint32 *pages, Uint32 min_requested);
+  void alloc_impl(Uint32 zone, Uint32* ret, Uint32 *pages, Uint32 min);
+  void release(Uint32 start, Uint32 cnt);
 };
 
 inline