From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753651Ab0DVD3x (ORCPT ); Wed, 21 Apr 2010 23:29:53 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:60953 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752639Ab0DVD3v (ORCPT ); Wed, 21 Apr 2010 23:29:51 -0400 Message-ID: <4BCFC31B.5000706@cn.fujitsu.com> Date: Thu, 22 Apr 2010 11:31:39 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b3pre) Gecko/20090513 Fedora/3.0-2.3.beta2.fc11 Thunderbird/3.0b2 MIME-Version: 1.0 To: LKML CC: Frederic Weisbecker , Ingo Molnar , Peter Zijlstra Subject: [BUG] a WARNING and a BUG from kernel/lockdep.c Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Maybe this is caused by commit bd6d29c25bb1a24a4c160ec5de43e0004e01f72b ("lockstat: Make lockstat counting per cpu") ? ============================ ------------[ cut here ]------------ WARNING: at kernel/lockdep.c:2301 trace_hardirqs_on_caller+0x210/0x220() Hardware name: Aspire SA85 Modules linked in: fuse sunrpc ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath linear ppdev pcspkr parport_pc parport r8169 mii ata_generic pata_acpi sata_sis pata_sis [last unloaded: scsi_wait_scan] Pid: 2452, comm: java Not tainted 2.6.34-rc5-tip+ #6 Call Trace: [] ? printk+0x1d/0x1f [] warn_slowpath_common+0x72/0xa0 [] ? trace_hardirqs_on_caller+0x210/0x220 [] ? trace_hardirqs_on_caller+0x210/0x220 [] ? __bad_area_nosemaphore+0x2c/0x130 [] warn_slowpath_null+0x1a/0x20 [] trace_hardirqs_on_caller+0x210/0x220 [] trace_hardirqs_on+0xb/0x10 [] __bad_area_nosemaphore+0x2c/0x130 [] ? __bad_area+0x2e/0x50 [] __bad_area+0x3f/0x50 [] ? do_page_fault+0x0/0x500 [] bad_area_access_error+0x17/0x20 [] do_page_fault+0x229/0x500 [] ? error_code+0x67/0x70 [] ? trace_hardirqs_off_caller+0x74/0x130 [] ? do_page_fault+0x0/0x500 [] error_code+0x6b/0x70 [] ? do_page_fault+0x0/0x500 ---[ end trace 93d0036abe3ab514 ]--- BUG: using smp_processor_id() in preemptible [00000000] code: java/2452 caller is trace_hardirqs_on_caller+0x18d/0x220 Pid: 2452, comm: java Tainted: G W 2.6.34-rc5-tip+ #6 Call Trace: [] ? printk+0x1d/0x1f [] debug_smp_processor_id+0xc0/0xd0 [] ? __bad_area_nosemaphore+0x2c/0x130 [] trace_hardirqs_on_caller+0x18d/0x220 [] trace_hardirqs_on+0xb/0x10 [] __bad_area_nosemaphore+0x2c/0x130 [] ? __bad_area+0x2e/0x50 [] __bad_area+0x3f/0x50 [] ? do_page_fault+0x0/0x500 [] bad_area_access_error+0x17/0x20 [] do_page_fault+0x229/0x500 [] ? error_code+0x67/0x70 [] ? trace_hardirqs_off_caller+0x74/0x130 [] ? do_page_fault+0x0/0x500 [] error_code+0x6b/0x70 [] ? do_page_fault+0x0/0x500