Question about SMP and up_cpu_paused

Hi all, I have been bughunting an issue with https://github.com/apache/nuttx/pull/9577 which implements (again) lazy FPU save and restore for risc-v. It crashes with SMP targets randomly. I have been looking at the SMP implementation of NuttX for a while now trying to understand what can cause su

[Article] NuttX on Star64 JH7110: RISC-V Semihosting and Initial RAM Disk

NuttX crashes on Star64 JH7110 RISC-V SBC because there's no Semihosting. But no worries! We modified NuttX to boot with an Initial RAM Disk instead (initrd). In this article, we find out… (1) What’s RISC-V Semihosting (2) Why it crashes NuttX on Star64 (3) How it affects the Apps Filesystem in Nu

Re: [Article] NuttX on Star64 JH7110: RISC-V Semihosting and Initial RAM Disk

On Fri, Jul 28, 2023 at 1:10 AM Lee, Lup Yuen wrote: > NuttX crashes on Star64 JH7110 RISC-V SBC because there's no Semihosting. > But no worries! We modified NuttX to boot with an Initial RAM Disk instead > (initrd). > > In this article, we find out… > (1) What’s RISC-V Semihosting > (2) Why it cr