zephyr_pre0.elf section `bss&#39; will not fit in region `RAM&#39; | region `RAM&#39; overflowed by 135500 byteshttps://devzone.nordicsemi.com/f/nordic-q-a/111619/zephyr_pre0-elf-section-bss-will-not-fit-in-region-ram-region-ram-overflowed-by-135500-bytesHello, When building my project although the terminal doesn&#39;t show me using all the RAM, I get the following error message which fails the build. I am using a custom device with a nRF5340 chipset, custom board files and all. Is this builden-USTelligent Community 13Wed, 29 May 2024 09:58:05 GMTRE: zephyr_pre0.elf section `bss' will not fit in region `RAM' | region `RAM' overflowed by 135500 byteshttps://devzone.nordicsemi.com/thread/486370?ContentTypeID=1Wed, 29 May 2024 09:58:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b482b115-a8a9-4a24-8b83-042555711b42fuddymox<p>Thank you I was able to identify a buffer that was much larger than it needed to be and now it builds.&nbsp;</p><div style="clear:both;"></div>RE: zephyr_pre0.elf section `bss' will not fit in region `RAM' | region `RAM' overflowed by 135500 byteshttps://devzone.nordicsemi.com/thread/486352?ContentTypeID=1Wed, 29 May 2024 09:18:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8f99f961-1f7d-4a8d-926c-4d5a50e7a8b9Sigurd Hellesvik<p>Hi,</p> <p>The build system builds multiple images.</p> [quote user=""]doesn&#39;t show me using all the RAM, [/quote] <p>I&#39;m guessing this is the network core</p> [quote user=""]I get the following error message which fails the build.&nbsp;[/quote] <p>And this one is the application.</p> <p>I suggest that you start by looking at <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/test_and_optimize/optimizing/memory.html">Memory optimization</a> and try to reduce some buffers to see if the error reports a smaller overflow.</p> <p>Regards,<br />Sigurd Hellesvik</p><div style="clear:both;"></div>