https://devzone.nordicsemi.com/f/nordic-q-a/124551/nrf52840dk-lvgl-9-3-malloc-fails-in-lvgl-init-at-startup-zephyr-4-1-ncs-3-1-0Hello, I’m trying to run **LVGL 9.3** on a **nRF52840 DK** with a **2.8&quot; ILI9341 TFT display (SPI)** using **NCS v3.1.0 / Zephyr 4.1 / Toolchain v3.1.0** . ### Problem The app compiles and starts, but I get some **malloc fails** . The faulten-USTelligent Community 13Tue, 23 Sep 2025 14:53:42 GMThttps://devzone.nordicsemi.com/thread/549591?ContentTypeID=1Tue, 23 Sep 2025 14:53:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6a197313-2ed0-4f25-9b06-c18e7f3d51b2Niels Ouvrard<p>I put&nbsp;8192 and it worked, no more malloc fails.<br />Thank you</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/549588?ContentTypeID=1Tue, 23 Sep 2025 14:40:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:218d5d37-bb29-45c2-8e80-b624735b9bb8Sigurd<p>Try this config:&nbsp;</p> <pre>CONFIG_LV_Z_MEM_POOL_SIZE</pre><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/549569?ContentTypeID=1Tue, 23 Sep 2025 12:58:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9f3b6701-a72f-473f-9411-8bfc731d29d8Niels Ouvrard<p>I tried 8k, 32k, 64k...<br />Same result<br /><br />Out of memory at the exact same place every time</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/549566?ContentTypeID=1Tue, 23 Sep 2025 12:37:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5b540a49-1699-4556-8dbd-35850e480432Sigurd<p>Hi!</p> <p>What did you try setting&nbsp;<code>CONFIG_HEAP_MEM_POOL_SIZE</code><span>&nbsp; to ? Make you can try a higher value?</span></p><div style="clear:both;"></div>