From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S945563AbdDTNa2 (ORCPT ); Thu, 20 Apr 2017 09:30:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53232 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S945331AbdDTNaY (ORCPT ); Thu, 20 Apr 2017 09:30:24 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 6A9DC7AEBF Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=jpoimboe@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 6A9DC7AEBF Date: Thu, 20 Apr 2017 08:30:21 -0500 From: Josh Poimboeuf To: Borislav Petkov Cc: x86-ml , lkml Subject: Re: WARNING: kernel stack regs at ffffc9000024fea8 in udevadm:92 has bad 'bp' value 00007fffc4614d30 Message-ID: <20170420133021.cxf6mb4tzhjwu5el@treble> References: <20170420110610.lkmc2a3pi3b5sgg5@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20170420110610.lkmc2a3pi3b5sgg5@pd.tnic> User-Agent: Mutt/1.6.0.1 (2016-04-01) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Thu, 20 Apr 2017 13:30:23 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 20, 2017 at 01:06:10PM +0200, Borislav Petkov wrote: > Hi, > > the splat below started appearing on one of the boxes here with > rc7+tip/master from yesterday. > > Ideas? Thanks for reporting it. This is another false positive. It unwinded from an interrupt which came in right after calling into C code, but before it could set up the frame pointer. This needs another unwinder check. -- Josh