masayuki2009 opened a new issue #207: SMP for Cortex-A MPcore is unstable
URL: https://github.com/apache/incubator-nuttx/issues/207
 
 
   There were several discussions on SMP issues for Cortex-A MPcore in NuttX 
mailing list before.
   Yesterday I tried sabre-6quad:smp configuration with QEMU, and noticed that 
it's unstable even
   if I changed the configuration to use only 2cores instead of 4cores.
   
   Actually, heap memory was sometimes corrupted during booting up the 
secondary core.
   Even if it succeeded to boot, heap memory was corrupted when a new task is 
created.
   They are very basic use-cases and should work with QEMU.
   
   So, I think something is wrong with Cortex-A SMP implementation, because 
Cortex-M SMP
   (e.g. Sony Spresense in dual core mode) and RISC-V SMP (K210 Maix-bit) are 
much more stable.
   

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