https://devzone.nordicsemi.com/f/nordic-q-a/27392/bug-report-memery-manager-library-xxlarge-blocks-doesn-t-workWhen I only used XXLARGE block, I got bellow error: ..\..\..\..\..\..\components\libraries\mem_manager\mem_manager.c(484): error: #94-D: the size of an array must be greater than zero static uint32_t m_mem_pool[ LOCK_BITMAP_ARRAY_SIZE]; /**&lt; Bitmapen-USTelligent Community 13Tue, 28 Nov 2017 11:22:53 GMThttps://devzone.nordicsemi.com/thread/108178?ContentTypeID=1Tue, 28 Nov 2017 11:22:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0a114bb0-6316-4e36-9b36-0c3d6f01a964MartinBL<p>Hi,</p> <p>This is indeed a bug.</p> <pre><code>/**@brief Total count of block managed by the module. */ #define TOTAL_BLOCK_COUNT (MEMORY_MANAGER_XXSMALL_BLOCK_COUNT + \ MEMORY_MANAGER_XSMALL_BLOCK_COUNT + \ MEMORY_MANAGER_SMALL_BLOCK_COUNT + \ MEMORY_MANAGER_MEDIUM_BLOCK_COUNT + \ MEMORY_MANAGER_LARGE_BLOCK_COUNT + \ MEMORY_MANAGER_XLARGE_BLOCK_COUNT + \ MEMORY_MANAGER_XLARGE_BLOCK_COUNT) </code></pre> <p>Should have been:</p> <pre><code>/**@brief Total count of block managed by the module. */ #define TOTAL_BLOCK_COUNT (MEMORY_MANAGER_XXSMALL_BLOCK_COUNT + \ MEMORY_MANAGER_XSMALL_BLOCK_COUNT + \ MEMORY_MANAGER_SMALL_BLOCK_COUNT + \ MEMORY_MANAGER_MEDIUM_BLOCK_COUNT + \ MEMORY_MANAGER_LARGE_BLOCK_COUNT + \ MEMORY_MANAGER_XLARGE_BLOCK_COUNT + \ MEMORY_MANAGER_XXLARGE_BLOCK_COUNT) </code></pre> <p>I have created an internal bug report. Thanks for reporting.</p><div style="clear:both;"></div>