pussuw edited a comment on pull request #5731:
URL: https://github.com/apache/incubator-nuttx/pull/5731#issuecomment-1080751884
> Yes, xcp.regs[] is in the kernel space, but the thread stack pointed by SP
isn't.
Exactly, and now the memory for the task context is taken from the stack. ```
xcp->regs = (uintptr_t *)(
(uintptr_t)tcb->stack_base_ptr + tcb->adj_stack_size - XCPTCONTEXT_SIZE);
```
Previously the memory was in tcb, as xcp.regs was a buffer, not a pointer:
`uintptr_t regs[XCPTCONTEXT_REGS];`. This is why the old code works, because
the buffer is in tcb which is kernel memory, for both tasks.
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