From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 56856C433F5 for ; Fri, 22 Oct 2021 16:37:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 315DD601FA for ; Fri, 22 Oct 2021 16:37:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233615AbhJVQjX (ORCPT ); Fri, 22 Oct 2021 12:39:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233371AbhJVQjW (ORCPT ); Fri, 22 Oct 2021 12:39:22 -0400 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 004B7C061764; Fri, 22 Oct 2021 09:37:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=6hZiNIyGel125n1o6XdKTYMm3OC5SbnDoqr+z05nKn0=; b=q0fwcOQlUM6NaSxVygxGQBVH+k Nbmv/cffL7Ma7C5Z7DbhzBFkJR0pJeFGwNT8uyiR9f4pFBERq9ApuzBMYVkORpuDuf1li+AboB3j+ 4sI8WboczIxCp0NQObqRiq6HNpzQmFKXBhNJrN0Yate1Cl6KMXn00MwunEVYJ/Pz8h/tDxxz4R7IY RdUH/E69AMQqWEak6tlPfUpqR2pDi18q0Opfyi82blrIhRzMCMIBWNvUg6PTQWmFBLNHm9/xKsryO PFsRE9rZaBw+w70C2+Oc64aCmNioTdL1xavEEXpKugYXfmPj5Nu79TlHMlVsDzGze8UolPZM9D+gq HhIriVMA==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=worktop.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mdxWX-00Bc57-Ld; Fri, 22 Oct 2021 16:36:05 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id 3B220986249; Fri, 22 Oct 2021 18:36:04 +0200 (CEST) Date: Fri, 22 Oct 2021 18:36:04 +0200 From: Peter Zijlstra To: Kees Cook Cc: x86@kernel.org, linux-kernel@vger.kernel.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, akpm@linux-foundation.org, mark.rutland@arm.com, zhengqi.arch@bytedance.com, linux@armlinux.org.uk, catalin.marinas@arm.com, will@kernel.org, mpe@ellerman.id.au, paul.walmsley@sifive.com, palmer@dabbelt.com, hca@linux.ibm.com, gor@linux.ibm.com, borntraeger@de.ibm.com, linux-arch@vger.kernel.org, ardb@kernel.org Subject: Re: [PATCH 4/7] arch: Make ARCH_STACKWALK independent of STACKTRACE Message-ID: <20211022163604.GD174703@worktop.programming.kicks-ass.net> References: <20211022150933.883959987@infradead.org> <20211022152104.356586621@infradead.org> <202110220917.AACE11A@keescook> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202110220917.AACE11A@keescook> Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On Fri, Oct 22, 2021 at 09:18:05AM -0700, Kees Cook wrote: > On Fri, Oct 22, 2021 at 05:09:37PM +0200, Peter Zijlstra wrote: > > Make arch_stack_walk() available for ARCH_STACKWALK architectures > > without it being entangled in STACKTRACE. > > Which CONFIG/arch combos did you build test with this? It looks good, > but I always expect things like this to end up landing in corner cases. > :) I had this one through 0day last night. That's no guarantees, but at least it's had a handfull of builds done on it.