From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 169F5371CE3; Wed, 29 Apr 2026 15:47:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777477654; cv=none; b=ONb8YA4T8ftSq+t8YmVWWhiNLJbXz9rJA6E10sTLhuyR2zoP1L9qIHUM6H3h3gwj8GSXuYoK9wkn+3eu++OPXjrwBnx0R0NwmHcIXHJlI3e6iRA2QKk7XEacWK+5r2UZ8IEzWMjh5LOh8CWE36qa8yvLEHVMrp5Sis6gZOLr12w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777477654; c=relaxed/simple; bh=XQfWx4ioTmZGJSGwwIVnRnI6ZqPKhsQ2meJtxo5IF8I=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=YSyiM20OeQWkXK15Sguo9Rs3HkknHIsmi87oVd0w5rE6vWI1FBQt/7Lb73GWRHP98M9G0AjpUXS0F6kbMLOIZtsqc6yPID6k1+wJuLrIU7v/8gV8wdlZwAy4RQLwVM8wWQhARN37MHgxX6UmcE6no3gY6vE/spprK/rMJ+sJXWU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=az7JqNvD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="az7JqNvD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 59114C19425; Wed, 29 Apr 2026 15:47:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777477654; bh=XQfWx4ioTmZGJSGwwIVnRnI6ZqPKhsQ2meJtxo5IF8I=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=az7JqNvDJ2uEKvZ+AGXKx0euHfWjEXHHLmpdrdaj4ArA8xg0jL4Pzujywkk7KvwvH 6rqvZgfWLHksceFfifT0xtrVo0EqS1qcRCtGAle7YGKqgLgyjxhlbTWXjJw31KODWI yOsjfwAhx2CdDhm91Z+seejHqQwVhjCOOEHQPAJnoEKMUtgMnFWgsaRWHMUSbQgr0u ntx/qSjNObSXi2a4iJ4u5ZJqTsRZsPfhLZPwH24t/jpgyE4YOLabi4A/cVYSilAq/j WuehLSkYVLKeJ0/f/Ra6E493bEgeujDuEOz1CHl7g9Wsp0VWxtKsZeQcDd5ZFxcuZU e6sqcSgLxrZlw== Date: Wed, 29 Apr 2026 11:47:47 -0400 From: Steven Rostedt To: Madhavan Srinivasan , Michael Ellerman Cc: LKML , Linux Trace Kernel , Masami Hiramatsu , Mathieu Desnoyers , Jens Remus , Josh Poimboeuf , Peter Zijlstra , Ingo Molnar , Jiri Olsa , Arnaldo Carvalho de Melo , Namhyung Kim , Thomas Gleixner , Andrii Nakryiko , Indu Bhagat , "Jose E. Marchesi" , Beau Belgrave , Linus Torvalds , Andrew Morton , Florian Weimer , Kees Cook , "Carlos O'Donell" , Sam James , Dylan Hatch , Borislav Petkov , Dave Hansen , David Hildenbrand , "H. Peter Anvin" , "Liam R. Howlett" , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Suren Baghdasaryan , Vlastimil Babka , Heiko Carstens , Vasily Gorbik Subject: Re: [RFC][PATCH] unwind: Add stacktrace_setup system call Message-ID: <20260429114747.4cf74d04@gandalf.local.home> In-Reply-To: <20260429114355.6c712e6a@gandalf.local.home> References: <20260429114355.6c712e6a@gandalf.local.home> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Wed, 29 Apr 2026 11:43:55 -0400 Steven Rostedt 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