From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756760AbYDQX4B (ORCPT ); Thu, 17 Apr 2008 19:56:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755494AbYDQXzw (ORCPT ); Thu, 17 Apr 2008 19:55:52 -0400 Received: from g1t0029.austin.hp.com ([15.216.28.36]:12025 "EHLO g1t0029.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755421AbYDQXzv (ORCPT ); Thu, 17 Apr 2008 19:55:51 -0400 From: Paul Moore Organization: Hewlett-Packard To: Andrew Morton Subject: Re: 2.6.25-mm1: not looking good Date: Thu, 17 Apr 2008 19:55:46 -0400 User-Agent: KMail/1.9.7 Cc: Ingo Molnar , Thomas Gleixner , Pekka Enberg , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, James Morris , Stephen Smalley References: <20080417160331.b4729f0c.akpm@linux-foundation.org> In-Reply-To: <20080417160331.b4729f0c.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200804171955.46600.paul.moore@hp.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 17 April 2008 7:03:31 pm Andrew Morton wrote: > I repulled all the trees an hour or two ago, installed everything on > an 8-way x86_64 box and: ... > ffffffff80268932 0000000000000001 Call Trace: > [] virt_to_cache+0x11/0x13 > [] kfree+0x20/0x38 > [] sel_netnode_free+0xd/0xf > [] __rcu_process_callbacks+0x147/0x1b6 > [] rcu_process_callbacks+0x23/0x44 > [] __do_softirq+0x58/0xae > [] call_softirq+0x1c/0x28 > [] do_softirq+0x2f/0x6f > [] irq_exit+0x36/0x38 > [] smp_apic_timer_interrupt+0x74/0x81 > [] apic_timer_interrupt+0x66/0x70 > [] ? mwait_idle+0x38/0x42 > [] ? mwait_idle+0x0/0x42 > [] ? cpu_idle+0xcb/0xe0 > [] ? start_secondary+0xb2/0xb4 > > > Code: 3a 48 69 c0 80 0e 00 00 48 03 04 d5 00 35 92 80 c9 c3 55 48 89 > e5 53 e8 87 ff ff ff 48 89 c7 48 89 c3 e8 69 ff ff ff 85 c0 75 04 > <0f> 0b eb fe 48 8b 43 30 5b c9 c3 55 48 89 e5 e8 87 ff ff ff 48 RIP > [] page_get_cache+0x19/0x24 > RSP > > security/selinux/netnode.c looks to be doing simple old > kzalloc/kfree, so I'd be suspecting slab. But there are significant > changes netnode.c in git-selinux. > > I have maybe two hours in which to weed out whatever > very-recently-added dud patches are causing this. Any suggestions > are welcome. For what it's worth I just looked over the changes in netnode.c and nothing is jumping out at me. The changes ran fine for me when tested on the later 2.6.25-rcX kernels but I suppose that doesn't mean a whole lot. I've got a 4-way x86_64 box but it needs to be installed (which means I'm not going to be able to do anything useful with it until tomorrow at the earliest). I'll try it out and see if I can recreate the problem. -- paul moore linux @ hp From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Moore Subject: Re: 2.6.25-mm1: not looking good Date: Thu, 17 Apr 2008 19:55:46 -0400 References: <20080417160331.b4729f0c.akpm@linux-foundation.org> In-Reply-To: <20080417160331.b4729f0c.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200804171955.46600.paul.moore@hp.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: Ingo Molnar , Thomas Gleixner , Pekka Enberg , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, James Morris , Stephen Smalley List-ID: On Thursday 17 April 2008 7:03:31 pm Andrew Morton wrote: > I repulled all the trees an hour or two ago, installed everything on > an 8-way x86_64 box and: ... > ffffffff80268932 0000000000000001 Call Trace: > [] virt_to_cache+0x11/0x13 > [] kfree+0x20/0x38 > [] sel_netnode_free+0xd/0xf > [] __rcu_process_callbacks+0x147/0x1b6 > [] rcu_process_callbacks+0x23/0x44 > [] __do_softirq+0x58/0xae > [] call_softirq+0x1c/0x28 > [] do_softirq+0x2f/0x6f > [] irq_exit+0x36/0x38 > [] smp_apic_timer_interrupt+0x74/0x81 > [] apic_timer_interrupt+0x66/0x70 > [] ? mwait_idle+0x38/0x42 > [] ? mwait_idle+0x0/0x42 > [] ? cpu_idle+0xcb/0xe0 > [] ? start_secondary+0xb2/0xb4 > > > Code: 3a 48 69 c0 80 0e 00 00 48 03 04 d5 00 35 92 80 c9 c3 55 48 89 > e5 53 e8 87 ff ff ff 48 89 c7 48 89 c3 e8 69 ff ff ff 85 c0 75 04 > <0f> 0b eb fe 48 8b 43 30 5b c9 c3 55 48 89 e5 e8 87 ff ff ff 48 RIP > [] page_get_cache+0x19/0x24 > RSP > > security/selinux/netnode.c looks to be doing simple old > kzalloc/kfree, so I'd be suspecting slab. But there are significant > changes netnode.c in git-selinux. > > I have maybe two hours in which to weed out whatever > very-recently-added dud patches are causing this. Any suggestions > are welcome. For what it's worth I just looked over the changes in netnode.c and nothing is jumping out at me. The changes ran fine for me when tested on the later 2.6.25-rcX kernels but I suppose that doesn't mean a whole lot. I've got a 4-way x86_64 box but it needs to be installed (which means I'm not going to be able to do anything useful with it until tomorrow at the earliest). I'll try it out and see if I can recreate the problem. -- paul moore linux @ hp -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org