From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751010AbbIGL6i (ORCPT ); Mon, 7 Sep 2015 07:58:38 -0400 Received: from plane.gmane.org ([80.91.229.3]:49869 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750752AbbIGL6g (ORCPT ); Mon, 7 Sep 2015 07:58:36 -0400 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Holger =?iso-8859-1?q?Hoffst=E4tte?= Subject: Re: Kernel 4.1.6 Panic due to slab corruption Date: Mon, 7 Sep 2015 11:58:18 +0000 (UTC) Message-ID: References: <55ED4DAD.7080701@kyup.com> <55ED7569.5090906@kyup.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: pd953ec06.dip0.t-ipconnect.de User-Agent: Pan/0.139 (Sexual Chocolate; GIT bf56508 git://git.gnome.org/pan2) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 07 Sep 2015 11:49:12 +0000, Holger Hoffstätte wrote: > On Mon, 07 Sep 2015 14:30:49 +0300, Nikolay Borisov wrote: > >> If you have the vmlinux image for the kernel you were running at the >> time, the crash occured, could you post the output of addr2line -f -e >> path/to/vmlinux ffffffff8115bd4d to see if it also fails in >> get_freepointer. > > Had to rebuild to get an uncompressed vmlinux, but here it is: > > holger>addr2line -f -e vmlinux ffffffff8115bd4d > kmem_cache_alloc > ??:? > > Not sure how much we can learn from this. :} Also for what it's worth the related splatter is all in the same place: holger>zgrep ffffffff8115bd4d /var/log/kern.log.0.gz Sep 5 20:42:02 ragnarok kernel: IP: [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: RIP: 0010:[] [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: RIP [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: IP: [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: RIP: 0010:[] [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: RIP [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: IP: [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: RIP: 0010:[] [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: RIP [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: IP: [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: RIP: 0010:[] [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: RIP [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: IP: [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: RIP: 0010:[] [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:02 ragnarok kernel: RIP [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:03 ragnarok kernel: IP: [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:03 ragnarok kernel: RIP: 0010:[] [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:03 ragnarok kernel: RIP [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:10 ragnarok kernel: IP: [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:10 ragnarok kernel: RIP: 0010:[] [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:10 ragnarok kernel: RIP [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:10 ragnarok kernel: IP: [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:10 ragnarok kernel: RIP: 0010:[] [] kmem_cache_alloc+0x6d/0x160 Sep 5 20:42:10 ragnarok kernel: RIP [] kmem_cache_alloc+0x6d/0x160 CPU is a 4 core HT i7 (aka 8 vcores), and so I have 8 splats. thanks, Holger