From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751200AbdK1G1R (ORCPT ); Tue, 28 Nov 2017 01:27:17 -0500 Received: from out02.mta.xmission.com ([166.70.13.232]:42657 "EHLO out02.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750711AbdK1G1P (ORCPT ); Tue, 28 Nov 2017 01:27:15 -0500 From: ebiederm@xmission.com (Eric W. Biederman) To: Linus Torvalds Cc: "Tobin C. Harding" , "Jason A. Donenfeld" , "Theodore Ts'o" , Kees Cook , Paolo Bonzini , Tycho Andersen , "Roberts\, William C" , Tejun Heo , Jordan Glover , Greg KH , Petr Mladek , Joe Perches , Ian Campbell , Sergey Senozhatsky , Catalin Marinas , Will Deacon , Steven Rostedt , Chris Fries , Dave Weinstein , Daniel Micay , Djalal Harouni , Radim =?utf-8?B?S3LEjW3DocWZ?= , Linux Kernel Mailing List , KVM list , "kernel-hardening\@lists.openwall.com" References: <1511826058-2563-1-git-send-email-me@tobin.cc> Date: Tue, 28 Nov 2017 00:26:58 -0600 In-Reply-To: (Linus Torvalds's message of "Mon, 27 Nov 2017 17:09:10 -0800") Message-ID: <874lpelxzh.fsf@xmission.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-XM-SPF: eid=1eJZME-0004HV-QP;;;mid=<874lpelxzh.fsf@xmission.com>;;;hst=in01.mta.xmission.com;;;ip=67.3.248.7;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX1+nqnl/Uw+odOnC5a9jokx3qC3T8uAnc2M= X-SA-Exim-Connect-IP: 67.3.248.7 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.0 TVD_RCVD_IP Message was received from an IP address * 1.5 XMNoVowels Alpha-numberic number with no vowels * 0.0 T_TM2_M_HEADER_IN_MSG BODY: No description available. * 0.8 BAYES_50 BODY: Bayes spam probability is 40 to 60% * [score: 0.4871] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa05 1397; Body=1 Fuz1=1 Fuz2=1] * 0.0 T_TooManySym_01 4+ unique symbols in subject X-Spam-DCC: XMission; sa05 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: *;Linus Torvalds X-Spam-Relay-Country: X-Spam-Timing: total 5300 ms - load_scoreonly_sql: 0.03 (0.0%), signal_user_changed: 2.0 (0.0%), b_tie_ro: 1.44 (0.0%), parse: 0.72 (0.0%), extract_message_metadata: 8 (0.2%), get_uri_detail_list: 0.62 (0.0%), tests_pri_-1000: 6 (0.1%), tests_pri_-950: 0.92 (0.0%), tests_pri_-900: 0.83 (0.0%), tests_pri_-400: 26 (0.5%), check_bayes: 25 (0.5%), b_tokenize: 11 (0.2%), b_tok_get_all: 6 (0.1%), b_comp_prob: 2.6 (0.0%), b_tok_touch_all: 3.0 (0.1%), b_finish: 0.60 (0.0%), tests_pri_0: 124 (2.3%), check_dkim_signature: 0.67 (0.0%), check_dkim_adsp: 3.0 (0.1%), tests_pri_500: 5129 (96.8%), poll_dns_idle: 5119 (96.6%), rewrite_mail: 0.00 (0.0%) Subject: Re: [PATCH 0/5] add printk specifier %px, unique identifier X-Spam-Flag: No X-SA-Exim-Version: 4.2.1 (built Thu, 05 May 2016 13:38:54 -0600) X-SA-Exim-Scanned: Yes (on in01.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linus Torvalds writes: > On Mon, Nov 27, 2017 at 4:03 PM, Linus Torvalds > wrote: >> >> So the big remaining ones for me are the /proc//stack (stack >> pointers) and the /proc/net/* ones. >> >> I'm a bit disappointed that those haven't been fixed already and >> aren't even in this series.. > > Oh well, I just did /proc//stack by making it just print 0 > unconditionally rather than the hex number. Patch? I know I have used /proc//stack manually many times when looking at a system where something is hung/weird and I needed to see what is going on. The backtrace inside the kernel can be invaluable. At the same time I don't know if we actually need the hex address. But please don't break that interface it is very useful. Eric