Received: by 2002:a05:6a10:6744:0:0:0:0 with SMTP id w4csp1859992pxu; Fri, 9 Oct 2020 01:20:57 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyjgvd+6p2IsswFO06WSJdgjnh6VWIXgWmdkRkkjD7aEZL2e7zhnh+0TbpIVScdcBGm7q4u X-Received: by 2002:a17:906:a4b:: with SMTP id x11mr13800278ejf.368.1602231657233; Fri, 09 Oct 2020 01:20:57 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1602231657; cv=none; d=google.com; s=arc-20160816; b=rcygJURhZq6RqwzR1JjyfbhF8bZ57BSWWWaqj6iImN3X7C9r0nEv0P0i+bCQ4SU6yT 8ze9MLMF1dbH/SRZhkE03LYpfeMqlGIyz+0hBft5dl+SQfCzlCW//9k2AOA6FKHVHYol QBsFHlg8GzlDKSw97i+pzbJzPjaZByZpGuvmgyNSqtnpo31T3rpw3y0ojp8qPOy8ccQT JBgMdRg1ibHieZDtVFeI6hNd0oQ1WTVgrht3q2edyTPtn1gRFZaRr/oDrVrU3hDHOzTY T9Z3YsX/54BiOyWJT5tKH7jpnzEPl8WsJklp1UI1NXrmSOZ5pGpoHYFci8pBScpiZvNG uuxw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:dkim-signature :dkim-signature:date; bh=uVNpfS1pDgfKgE0j5KH7ugPaGZjN/OuepCzg8dpUzZc=; b=Sg0B3hEPHxTCPbohToi3bXMA4aQDe3adzqN77YYLfS7abWwZuNJsHibsELsBacgJuB 8ut+wIf819JcchcZNTMyoKOrbc/LMH6MMmJQ40AfO6s0c5OfhbSb3LzLhMq7THmQ2yt0 /W+hBGtDB4f+kzgeplI7iz6mSBfeKutA7sfU1kR3jfTh/v8AmAGK9H/+xmCscgKB1qX/ b1tl+sCTZy1ykfKS/oMyii9W9PS0eCqYCEzvk0m2h50WpJ+4N8ZCm9/Vfyyp3BxLAeV7 cXCGOtY7Yg4bSLCu0zCoZlBAwq3hsvdr89Ryntb2xOvTNGTrGZswYVNG6/5l6eN3uzXp feTw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=Vto18k3o; dkim=neutral (no key) header.i=@linutronix.de; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id q4si5294353ejd.380.2020.10.09.01.20.34; Fri, 09 Oct 2020 01:20:57 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=Vto18k3o; dkim=neutral (no key) header.i=@linutronix.de; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732612AbgJIISY (ORCPT + 99 others); Fri, 9 Oct 2020 04:18:24 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:56492 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732337AbgJIISX (ORCPT ); Fri, 9 Oct 2020 04:18:23 -0400 Date: Fri, 9 Oct 2020 10:18:20 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1602231502; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=uVNpfS1pDgfKgE0j5KH7ugPaGZjN/OuepCzg8dpUzZc=; b=Vto18k3o+T1AK3MkhkvUp6ZaWqYqrY4dvS0Dm/jdK4NJucl5pmxkALFHbJZ5EsDBtU8Qv6 2ozPQ+Yksp8njZZZjIHhibFsPwYipz/SSyv7WqIb8mk/rLu127YXQVCvkzlvXwMJl/zFwh v/PEBmtxmriww4dXgAF6xz1CU3nslog0+SS+IWq+mUfdT/65bXaMq1E8/nxXzNC9HY3ItK AkGhV7KXS1GP4HY+TtwLY6cMdovOkmd7YDYzz3hbYFm//5oFKrkR6gfbE8aSrJ2XTnUnoX 0wsbxR8w6KWbtlKmBoi2sdhZI7Cb4OomMpWEEWeamJdJG5cJ5n0bYacs+XxPkw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1602231502; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=uVNpfS1pDgfKgE0j5KH7ugPaGZjN/OuepCzg8dpUzZc=; b=EHfR7LVYDl1o236GGxjGuDikI4trDrSWwK9eR82JU4M4H4oCCBQRR+zhrp7yWRLsWduKap AqLqjqxWJMMjwZCw== From: Sebastian Andrzej Siewior To: Russell King - ARM Linux admin Cc: Xiaoming Ni , dima@arista.com, will@kernel.org, jpoimboe@redhat.com, akpm@linux-foundation.org, christian.brauner@ubuntu.com, viro@zeniv.linux.org.uk, ldufour@linux.ibm.com, amanieu@gmail.com, walken@google.com, ben.dooks@codethink.co.uk, tglx@linutronix.de, mingo@kernel.org, vincent.whitchurch@axis.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, wangle6@huawei.com, luohaizheng@huawei.com Subject: Re: [PATCH] arm:traps: Don't print stack or raw PC/LR values in backtraces Message-ID: <20201009081820.jargnmck6zfkzegx@linutronix.de> References: <20201009075957.110017-1-nixiaoming@huawei.com> <20201009080849.GM1551@shell.armlinux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20201009080849.GM1551@shell.armlinux.org.uk> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020-10-09 09:08:50 [+0100], Russell King - ARM Linux admin wrote: > I am really not happy about this - it hurts at least my ability to > debug the kernel when people post oopses to the mailing list. If > people wish to make the kernel harder to debug, and are prepared > to be told "your kernel is undebuggable" then this patch is fine. I haven't look at the patch but don't they keep/add the representation: PC: symbol+offset/size LR: symbol+offset/size ? This is needed at very least as a replacement for the missing address. Sebastian