From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755442AbZHYRRv (ORCPT ); Tue, 25 Aug 2009 13:17:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755271AbZHYRRv (ORCPT ); Tue, 25 Aug 2009 13:17:51 -0400 Received: from gv-out-0910.google.com ([216.239.58.184]:57761 "EHLO gv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755250AbZHYRRu (ORCPT ); Tue, 25 Aug 2009 13:17:50 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=HwGO4nkUvRLs4g6qxEzp1P2hbQRSjg7vtN4GLAD56/Zyk3X8GibdUZ/mPlZeTB8vlF 0eowheJf72rJFMYWASMQ90drZDuZ52jxEWMkrumBNuWK0gH88eJLNpZgx/XdkpaJpUnP l0p4Q6jNrgcd5XZdgEDF296kEfZx99cFhNvGQ= Message-ID: <4A941CBD.1040303@gmail.com> Date: Tue, 25 Aug 2009 19:17:49 +0200 From: "Mikko C." User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; it; rv:1.9.1.1) Gecko/20090824 Thunderbird/3.0b3 MIME-Version: 1.0 To: Linus Torvalds CC: Eric Paris , Frans Pop , linux-kernel@vger.kernel.org, zdenek.kabelac@gmail.com, christoph.thielecke@gmx.de, akpm@linux-foundation.org, viro@zeniv.linux.org.uk, grant.wilson@zen.co.uk Subject: Re: [PATCH 2/3] inotify: do not BUG on idr entries at inotify destruction References: <20090824173524.14196.25992.stgit@paris.rdu.redhat.com> <20090824173524.14196.25992.stgit@paris.rdu.redhat.com> <20090824173812.14196.381.stgit@paris.rdu.redhat.com> <200908242034.50885.elendil@planet.nl> <1251140949.25096.16.camel@dhcp231-106.rdu.redhat.com> <1251146166.25096.22.camel@dhcp231-106.rdu.redhat.com> <4A93CE2A.90509@gmail.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org on 25/08/2009 18:43 Linus Torvalds wrote: > > On Tue, 25 Aug 2009, Mikko C. wrote: >> >> I just got this with -rc7, but it doesn't look related to what I was having >> before: >> >> BUG: Bad page map in process kio_thumbnail pte:ffff88006cc99128 pmd:6d3b1067 >> addr:00007f9d4e3a5000 vm_flags:08000070 anon_vma:(null) >> mapping:ffff88007abe21a0 index:200 >> vma->vm_ops->fault: filemap_fault+0x0/0x460 >> vma->vm_file->f_op->mmap: ext4_file_mmap+0x0/0x80 >> Pid: 28022, comm: kio_thumbnail Not tainted 2.6.31-rc7 #1 >> Call Trace: >> [] ? print_bad_pte+0x1d4/0x2c0 >> [] ? vm_normal_page+0x99/0xa0 >> [] ? unmap_vmas+0x4cd/0x970 >> [] ? exit_mmap+0x104/0x1d0 >> [] ? mmput+0x4d/0x100 >> [] ? exit_mm+0x101/0x150 >> [] ? do_exit+0x6c0/0x750 >> [] ? do_group_exit+0x56/0xd0 >> [] ? sys_exit_group+0x22/0x40 >> [] ? system_call_fastpath+0x16/0x1b >> Disabling lock debugging due to kernel taint >> >> No lockups or anything. > > That looks like a memory corruption bug. Your page table entry is bad: > pte:ffff88006cc99128. Now that you mention it, I remember having a couple segfaults with a program I was testing earlier so I guess that could have screwed with memory... I'd say it's safe to ignore it unless I get another one. Meanwhile still no notify bug with -rc7 :)