diff --git a/legacy/eina/configure.ac b/legacy/eina/configure.ac
index aad489899b..6074c6eba7 100644
--- a/legacy/eina/configure.ac
+++ b/legacy/eina/configure.ac
@@ -593,6 +593,7 @@ echo "  Default mempool......: ${have_default_mempool}"
 echo "  Thread Support.......: ${have_threads}"
 if test "${have_threads}" = "POSIX" ; then
 echo "    spinlock...........: ${have_posix_threads_spinlock}"
+echo "    debug usage........: ${have_debug_threads}"
 fi
 echo "  Amalgamation.........: ${do_amalgamation}"
 echo "  Iconv support........: ${have_iconv}"
diff --git a/legacy/eina/m4/efl_threads.m4 b/legacy/eina/m4/efl_threads.m4
index 2228f996a4..86394bbddf 100644
--- a/legacy/eina/m4/efl_threads.m4
+++ b/legacy/eina/m4/efl_threads.m4
@@ -134,11 +134,21 @@ fi
 AC_SUBST(EFL_PTHREAD_CFLAGS)
 AC_SUBST(EFL_PTHREAD_LIBS)
 
+_efl_enable_debug_threads="no"
+AC_ARG_ENABLE([debug-threads],
+   [AC_HELP_STRING([--enable-debug-threads], [disable assert when you forgot to call eina_threads_init])],
+   [_efl_enable_debug_threads="${enableval}"])
+
+have_debug_threads="no"
+if test "x${_efl_have_posix_threads}" = "xyes" -a "x${_efl_enable_debug_threads}" = "xyes"; then
+   have_debug_threads="yes"
+   AC_DEFINE([EFL_DEBUG_THREADS], [1], [Assert when forgot to call eina_threads_init])
+fi
+
 if test "x${_efl_have_posix_threads}" = "xyes" ; then
    AC_DEFINE([EFL_HAVE_POSIX_THREADS], [1], [Define to mention that POSIX threads are supported])
 fi
 
-
 if test "x${_efl_enable_win32_threads}" = "xyes" ; then
    _efl_have_win32_threads="yes"
    AC_DEFINE([EFL_HAVE_WIN32_THREADS], [1], [Define to mention that Win32 threads are supported])
diff --git a/legacy/eina/src/modules/mp/chained_pool/eina_chained_mempool.c b/legacy/eina/src/modules/mp/chained_pool/eina_chained_mempool.c
index a52d357111..6057dd000f 100644
--- a/legacy/eina/src/modules/mp/chained_pool/eina_chained_mempool.c
+++ b/legacy/eina/src/modules/mp/chained_pool/eina_chained_mempool.c
@@ -52,6 +52,10 @@ static int _eina_mempool_log_dom = -1;
 #define INF(...) EINA_LOG_DOM_INFO(_eina_mempool_log_dom, __VA_ARGS__)
 #endif
 
+#ifdef EFL_DEBUG_THREADS
+#include <assert.h>
+#endif
+
 typedef struct _Chained_Mempool Chained_Mempool;
 struct _Chained_Mempool
 {
@@ -63,6 +67,9 @@ struct _Chained_Mempool
    int group_size;
    int usage;
 #ifdef EFL_HAVE_THREADS
+#ifdef EFL_DEBUG_THREADS
+   pthread_t self;
+#endif
 # ifdef EFL_HAVE_POSIX_THREADS
    pthread_mutex_t mutex;
 # else
@@ -127,6 +134,10 @@ eina_chained_mempool_malloc(void *data, __UNUSED__ unsigned int size)
         WaitForSingleObject(pool->mutex, INFINITE);
 # endif
      }
+#ifdef EFL_DEBUG_THREADS
+   else
+     assert(pool->self == pthread_self());
+#endif
 #endif
 
    // look 4 pool from 2nd bucket on
@@ -214,12 +225,16 @@ eina_chained_mempool_free(void *data, void *ptr)
         WaitForSingleObject(pool->mutex, INFINITE);
 # endif
      }
+#ifdef EFL_DEBUG_THREADS
+   else
+     assert(pool->self == pthread_self());
+#endif
 #endif
 
    EINA_INLIST_FOREACH(pool->first, p)
    {
       // Could the pointer be inside that pool
-      if (ptr < p->limit)
+      if ((unsigned char*) ptr < p->limit)
         {
            // pool mem base
            pmem = (void *)(((unsigned char *)p) + sizeof(Chained_Pool));
@@ -293,6 +308,9 @@ eina_chained_mempool_init(const char *context,
    mp->item_alloc = eina_mempool_alignof(item_size);
    mp->group_size = mp->item_alloc * mp->pool_size;
    mp->alloc_size = mp->group_size + eina_mempool_alignof(sizeof(Chained_Pool));
+#ifdef EFL_DEBUG_THREADS
+   mp->self = pthread_self();
+#endif
 
 #ifdef EFL_HAVE_THREADS
 # ifdef EFL_HAVE_POSIX_THREADS
@@ -328,6 +346,9 @@ eina_chained_mempool_shutdown(void *data)
      }
 
 #ifdef EFL_HAVE_THREADS
+#ifdef EFL_DEBUG_THREADS
+   assert(mp->self == pthread_self());
+#endif
 # ifdef EFL_HAVE_POSIX_THREADS
    pthread_mutex_destroy(&mp->mutex);
 # else