From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f50.google.com (mail-wg0-f50.google.com [74.125.82.50]) by kanga.kvack.org (Postfix) with ESMTP id 9F9F56B006E for ; Mon, 26 Jan 2015 06:56:26 -0500 (EST) Received: by mail-wg0-f50.google.com with SMTP id b13so8502788wgh.9 for ; Mon, 26 Jan 2015 03:56:26 -0800 (PST) Received: from kirsi1.inet.fi (mta-out1.inet.fi. [62.71.2.195]) by mx.google.com with ESMTP id z2si19277338wib.91.2015.01.26.03.56.24 for ; Mon, 26 Jan 2015 03:56:25 -0800 (PST) Date: Mon, 26 Jan 2015 13:56:12 +0200 From: "Kirill A. Shutemov" Subject: Re: [mm] WARNING: CPU: 1 PID: 681 at mm/mmap.c:2858 exit_mmap() Message-ID: <20150126115612.GA25833@node.dhcp.inet.fi> References: <20150125043608.GB6109@wfg-t540p.sh.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150125043608.GB6109@wfg-t540p.sh.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Fengguang Wu , Andrew Morton Cc: "Kirill A. Shutemov" , LKP , linux-kernel@vger.kernel.org, linux-mm@kvack.org On Sat, Jan 24, 2015 at 08:36:08PM -0800, Fengguang Wu wrote: > [ 17.687075] Freeing unused kernel memory: 1716K (c190d000 - c1aba000) > [ 17.808897] random: init urandom read with 5 bits of entropy available > [ 17.828360] ------------[ cut here ]------------ > [ 17.828989] WARNING: CPU: 1 PID: 681 at mm/mmap.c:2858 exit_mmap+0x197/0x1ad() > [ 17.830086] Modules linked in: > [ 17.830549] CPU: 1 PID: 681 Comm: init Not tainted 3.19.0-rc5-gf7a7b53 #19 > [ 17.831339] 00000001 00000000 00000001 d388bd4c c14341a1 00000000 00000001 c16ebf08 > [ 17.832421] d388bd68 c1056987 00000b2a c1150db8 00000001 00000001 00000000 d388bd78 > [ 17.833488] c1056a11 00000009 00000000 d388bdd0 c1150db8 d3858380 ffffffff ffffffff > [ 17.841323] Call Trace: > [ 17.844215] [] dump_stack+0x78/0xa8 > [ 17.844700] [] warn_slowpath_common+0xb7/0xce > [ 17.847797] [] ? exit_mmap+0x197/0x1ad > [ 17.850955] [] warn_slowpath_null+0x14/0x18 > [ 17.854131] [] exit_mmap+0x197/0x1ad > [ 17.854629] [] mmput+0x52/0xef > [ 17.857584] [] flush_old_exec+0x923/0x99d > [ 17.860806] [] load_elf_binary+0x430/0x11af > [ 17.861378] [] ? local_clock+0x2f/0x39 > [ 17.865327] [] ? lock_release_holdtime+0x60/0x6d > [ 17.866002] [] search_binary_handler+0x9c/0x20f > [ 17.866588] [] load_script+0x339/0x355 > [ 17.874149] [] ? sched_clock_cpu+0x188/0x1a3 > [ 17.874718] [] ? local_clock+0x2f/0x39 > [ 17.878580] [] ? lock_release_holdtime+0x60/0x6d > [ 17.879355] [] ? do_raw_read_unlock+0x28/0x53 > [ 17.879997] [] search_binary_handler+0x9c/0x20f > [ 17.887644] [] do_execveat_common+0x6d6/0x954 > [ 17.890904] [] do_execve+0x19/0x1b > [ 17.891389] [] SyS_execve+0x21/0x25 > [ 17.895168] [] syscall_call+0x7/0x7 > [ 17.895653] ---[ end trace 6a7094e9a1d04ce0 ]--- > [ 17.909585] ------------[ cut here ]------------ Thanks for report. The patch below should fix this.