From: Steven Rostedt <rostedt@kernel.org>
To: Madhavan Srinivasan <maddy@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: LKML <linux-kernel@vger.kernel.org>,
Linux Trace Kernel <linux-trace-kernel@vger.kernel.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Jens Remus <jremus@linux.ibm.com>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Andrii Nakryiko <andrii@kernel.org>,
Indu Bhagat <indu.bhagat@oracle.com>,
"Jose E. Marchesi" <jemarch@gnu.org>,
Beau Belgrave <beaub@linux.microsoft.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Florian Weimer <fweimer@redhat.com>, Kees Cook <kees@kernel.org>,
"Carlos O'Donell" <codonell@redhat.com>,
Sam James <sam@gentoo.org>, Dylan Hatch <dylanbhatch@google.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
David Hildenbrand <david@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Michal Hocko <mhocko@suse.com>, Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Vlastimil Babka <vbabka@suse.cz>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>
Subject: Re: [RFC][PATCH] unwind: Add stacktrace_setup system call
Date: Wed, 29 Apr 2026 11:47:47 -0400 [thread overview]
Message-ID: <20260429114747.4cf74d04@gandalf.local.home> (raw)
In-Reply-To: <20260429114355.6c712e6a@gandalf.local.home>
On Wed, 29 Apr 2026 11:43:55 -0400
Steven Rostedt <rostedt@kernel.org> 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
next prev parent reply other threads:[~2026-04-29 15:47 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-29 15:43 [RFC][PATCH] unwind: Add stacktrace_setup system call Steven Rostedt
2026-04-29 15:47 ` Steven Rostedt [this message]
2026-04-29 18:32 ` Mathieu Desnoyers
2026-04-30 7:26 ` Geert Uytterhoeven
2026-04-29 18:42 ` Mathieu Desnoyers
2026-04-29 18:55 ` Steven Rostedt
2026-04-29 18:58 ` Steven Rostedt
2026-04-29 20:03 ` Steven Rostedt
2026-04-30 16:23 ` Jens Remus
2026-04-30 16:26 ` Mathieu Desnoyers
2026-04-30 17:33 ` Steven Rostedt
2026-04-30 17:38 ` Steven Rostedt
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