cederom commented on issue #16956:
URL: https://github.com/apache/nuttx/issues/16956#issuecomment-3506763761

   > Wow [@cederom](https://github.com/cederom) ! Super helpful! What are you 
going to do with all those Pis now?
   
   NXDART :-) 
   
   > I wonder why that's the case, I'll have to investigate the startup code. 
Is the free memory output in bytes? It seems almost too big?
   
   No low level experience with rPI 4B sorry :-( Quick search indicates RAM 
problems may come from:
   
   1. 32/64-bit mode: https://forums.raspberrypi.com/viewtopic.php?t=244367.
   2. UBoot: https://github.com/orangepi-xunlong/u-boot-orangepi/issues/19.
   3. Various and pretty frequent hardware failures (i.e. BGA, pmic): 
https://www.reddit.com/r/raspberry_pi/comments/10cnoug/pi_4_8gb_sdram_failure/, 
https://github.com/raspberrypi/rpi-eeprom/issues/328, ... .


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