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 X-Spam-Level: X-Spam-Status: No, score=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 57805C433E0 for ; Mon, 4 Jan 2021 13:12:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 281AC221E5 for ; Mon, 4 Jan 2021 13:12:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726258AbhADNMy (ORCPT ); Mon, 4 Jan 2021 08:12:54 -0500 Received: from mga03.intel.com ([134.134.136.65]:52587 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725889AbhADNMy (ORCPT ); Mon, 4 Jan 2021 08:12:54 -0500 IronPort-SDR: X+m8Hd3zSbax1obalDrknzpw9roxvwHQyERxRgdbqxceTlde03Nr7mxscOAuGLnlAmN5vUesV6 HMUvnMX3qQxQ== X-IronPort-AV: E=McAfee;i="6000,8403,9853"; a="177050740" X-IronPort-AV: E=Sophos;i="5.78,474,1599548400"; d="scan'208";a="177050740" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jan 2021 05:12:13 -0800 IronPort-SDR: IsIbFbi3SDJkbBHlAKm6aF8UFpaXebMZMwUcj3Aopt8r0xA9+Fqu9/2xM5DOqsjsL6W3/fqdeN DVlqJ5V7bXCw== X-IronPort-AV: E=Sophos;i="5.78,474,1599548400"; d="scan'208";a="349936668" Received: from xsang-optiplex-9020.sh.intel.com (HELO xsang-OptiPlex-9020) ([10.239.159.140]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jan 2021 05:12:11 -0800 Date: Mon, 4 Jan 2021 21:27:13 +0800 From: Oliver Sang To: Helge Deller Cc: 0day robot , LKML , lkp@lists.01.org, Alexey Dobriyan , Andrew Morton , linux-fsdevel@vger.kernel.org Subject: Re: [proc/wchan] 30a3a19273: leaking-addresses.proc.wchan./proc/bus/input/devices:B:KEY=1000000000007ff980000000007fffebeffdfffeffffffffffffffffffffe Message-ID: <20210104132713.GA9355@xsang-OptiPlex-9020> References: <20210103142726.GC30643@xsang-OptiPlex-9020> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Sun, Jan 03, 2021 at 07:25:36PM +0100, Helge Deller wrote: > On 1/3/21 3:27 PM, kernel test robot wrote: > > > > Greeting, > > > > FYI, we noticed the following commit (built with gcc-9): > > > > commit: 30a3a192730a997bc4afff5765254175b6fb64f3 ("[PATCH] proc/wchan: Use printk format instead of lookup_symbol_name()") > > url: https://github.com/0day-ci/linux/commits/Helge-Deller/proc-wchan-Use-printk-format-instead-of-lookup_symbol_name/20201218-010048 > > base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git 09162bc32c880a791c6c0668ce0745cf7958f576 > > > > in testcase: leaking-addresses > > version: leaking-addresses-x86_64-4f19048-1_20201111 > > with following parameters: > > > > ucode: 0xde > > > > > > > > on test machine: 4 threads Intel(R) Core(TM) i7-7567U CPU @ 3.50GHz with 32G memory > > > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > I don't see anything wrong with the wchan patch (30a3a192730a997bc4afff5765254175b6fb64f3), > or that it could have leaked anything. > > Maybe the kernel test robot picked up the wchan patch by mistake ? thanks for information. we will look at this and fix robot if any problem. > > Helge > > > > > > If you fix the issue, kindly add following tag > > Reported-by: kernel test robot > > > > 2021-01-01 01:52:25 ./leaking_addresses.pl --output-raw result/scan.out > > 2021-01-01 01:52:49 ./leaking_addresses.pl --input-raw result/scan.out --squash-by-filename > > > > Total number of results from scan (incl dmesg): 156538 > > > > dmesg output: > > [ 0.058490] mapped IOAPIC to ffffffffff5fb000 (fec00000) > > > > Results squashed by filename (excl dmesg). Displaying [ ], > > [1 _error_injection_whitelist] 0xffffffffc0a254b0 > > [25 __bug_table] 0xffffffffc01e0070 > > [46 .orc_unwind_ip] 0xffffffffc009f3a0 > > [6 __tracepoints_strings] 0xffffffffc027d7d0 > > [50 .strtab] 0xffffffffc00b9b88 > > [1 .rodata.cst16.mask2] 0xffffffffc00a70e0 > > [1 key] 1000000000007 ff980000000007ff febeffdfffefffff fffffffffffffffe > > [50 .note.Linux] 0xffffffffc009f024 > > [41 .data] 0xffffffffc00a1000 > > [6 .static_call.text] 0xffffffffc0274b44 > > [1 _ftrace_eval_map] 0xffffffffc0a20148 > > [10 .data.once] 0xffffffffc04475b4 > > [7 .static_call_sites] 0xffffffffc0a22088 > > [6 __tracepoints_ptrs] 0xffffffffc027d7bc > > [7 .fixup] 0xffffffffc00852ea > > [49 __mcount_loc] 0xffffffffc009f03c > > [19 __param] 0xffffffffc009f378 > > [38 .rodata.str1.8] 0xffffffffc009f170 > > [1 ___srcu_struct_ptrs] 0xffffffffc0355000 > > [14 .altinstr_replacement] 0xffffffffc04349ca > > [154936 kallsyms] ffffffff81000000 T startup_64 > > [50 .gnu.linkonce.this_module] 0xffffffffc00a1140 > > [24 __ksymtab_strings] 0xffffffffc00e2048 > > [31 .bss] 0xffffffffc00a1500 > > [42 .rodata.str1.1] 0xffffffffc009f09c > > [9 .init.rodata] 0xffffffffc00b8000 > > [11 __ex_table] 0xffffffffc00bd128 > > [14 .parainstructions] 0xffffffffc03b5d88 > > [6 __tracepoints] 0xffffffffc02818c0 > > [1 .rodata.cst16.mask1] 0xffffffffc00a70d0 > > [18 __dyndbg] 0xffffffffc00a10c8 > > [5 .altinstr_aux] 0xffffffffc0143a49 > > [22 .smp_locks] 0xffffffffc009f094 > > [2 .rodata.cst16.bswap_mask] 0xffffffffc005e070 > > [40 .init.text] 0xffffffffc00b7000 > > [4 .init.data] 0xffffffffc00e7000 > > [10 .data..read_mostly] 0xffffffffc00a1100 > > [14 .altinstructions] 0xffffffffc0446846 > > [6 __bpf_raw_tp_map] 0xffffffffc0281720 > > [50 .note.gnu.build-id] 0xffffffffc009f000 > > [6 _ftrace_events] 0xffffffffc0281780 > > [140 printk_formats] 0xffffffff82341767 : "CPU_ON" > > [25 __jump_table] 0xffffffffc00a0000 > > [37 .exit.text] 0xffffffffc009ec70 > > [50 .text] 0xffffffffc009e000 > > [35 .text.unlikely] 0xffffffffc009ebaf > > [18 __ksymtab] 0xffffffffc00e203c > > [46 .orc_unwind] 0xffffffffc009f544 > > [1 .data..cacheline_aligned] 0xffffffffc081d8c0 > > [2 .noinstr.text] 0xffffffffc04b8d00 > > [1 uevent] KEY=1000000000007 ff980000000007ff febeffdfffefffff fffffffffffffffe > > [50 modules] netconsole 20480 0 - Live 0xffffffffc00cb000 > > [337 blacklist] 0xffffffff81c00880-0xffffffff81c008a0 asm_exc_overflow > > [1 .rodata.cst32.byteshift_table] 0xffffffffc00a7100 > > [2 wchan] 0xffffc9000000003c/proc/bus/input/devices: B: KEY=1000000000007 ff980000000007ff febeffdfffefffff fffffffffffffffe > > [6 .ref.data] 0xffffffffc02817a0 > > [14 __ksymtab_gpl] 0xffffffffc03b503c > > [42 .rodata] 0xffffffffc009f2c0 > > [50 .symtab] 0xffffffffc00b9000 > > > > > > > > To reproduce: > > > > git clone https://github.com/intel/lkp-tests.git > > cd lkp-tests > > bin/lkp install job.yaml # job file is attached in this email > > bin/lkp run job.yaml > > > > > > > > Thanks, > > Oliver Sang > > >