Kevin Witteveen (MartiniMarter)

Thank you, The weird part is sometimes ostest actually passes for me. But when you try to do work, it returns. A heisenbug. For now I am unfortunately unable to...

I have the same issue. The "fix" for me is to disable IDMA transfers STM32H7_SDMMC_IDMA=n However, I get warned by the system that overruns are possible and i can image...

Little update that is probably very important. Disabling IDMA will give you overrun warnings. It does not explain what will happen if you ignore these. If you ignore the warnings...

> [@keever50](https://github.com/keever50) solution： > > CONFIG_FAT_DMAMEMORY=y CONFIG_GRAN=y CONFIG_STM32H7_SDMMC_IDMA=y CONFIG_ARMV7M_DCACHE_WRITETHROUGH=n see:armv7m mpu document > > in stm32_dmarecvsetup: #if defined(CONFIG_ARCH_HAVE_SDIO_PREFLIGHT) // DEBUGASSERT(stm32_dmapreflight(dev, buffer, buflen) == 0); #endif > >  Thanks!! I...

@snikeguo This solution worked. Thanks! I'd like to add that if your board does not contain stm32_dma_alloc.c, you must add this. These can be copied from other existing H7 boards.

Hey, is this problem in any way or form related to https://github.com/apache/nuttx/issues/16139 ? Maybe there are details in common. I've had these strange hangs for a while and i feel...

> [@keever50](https://github.com/keever50) [@avgoor](https://github.com/avgoor) I got ostest crash in the same signal test, could you try the my commit [45478e5](https://github.com/apache/nuttx/commit/45478e5d5e71f647cb6ce0ee3f2b920e637410a7) it fixes for me the ostest, rp2350 SMP mode disabled. That...

Thanks, however, for me the same result. It did not help. I did similar fixes like this that appeared to have helped, but really just "shifts" around the issue elsewhere....

ostest also still fails for me on the RP2350 - usbnsh. It does not get any further than this: 

I still believe that the issue isn't even centered around SMP specifically. These issues are completely random. Every patch, every PR, the issue just gets moved around in memory. The...