Re: [RFC][PATCH] unwind: Add stacktrace_setup system call

[Steven Rostedt]

On Wed, 29 Apr 2026 11:43:55 -0400
Steven Rostedt <rostedt@xxxxxxxxxx> wrote:

> diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
> index 4fcc7c58a105..005441233932 100644
> --- a/arch/powerpc/kernel/syscalls/syscall.tbl
> +++ b/arch/powerpc/kernel/syscalls/syscall.tbl
> @@ -562,3 +562,4 @@
>  469	common	file_setattr			sys_file_setattr
>  470	common	listns				sys_listns
>  471	nospu	rseq_slice_yield		sys_rseq_slice_yield
> +472	nospu	stacktrace_setup		sys_stacktrace_setup

BTW, I have no idea what "nospu" is. I did some searches for PowerPC and
spu vs nospu and the only thing I found was a stackoverflow asking about
it, and the response was "don't worry about it".

I only picked nospu because I noticed that rseq_slice_yield used it, but
that doesn't give me a good feeling that it's correct.

-- Steve