Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933745AbZDCOuZ (ORCPT ); Fri, 3 Apr 2009 10:50:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932803AbZDCOqN (ORCPT ); Fri, 3 Apr 2009 10:46:13 -0400 Received: from mga09.intel.com ([134.134.136.24]:14809 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932482AbZDCOqF (ORCPT ); Fri, 3 Apr 2009 10:46:05 -0400 Content-Type: multipart/mixed; boundary="===============1150151147==" MIME-Version: 1.0 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.39,319,1235980800"; d="scan'208";a="503328354" Message-Id: <20090403144558.450027000@intel.com> References: <20090403144332.799740000@intel.com> User-Agent: quilt/0.46-1 Date: Fri, 03 Apr 2009 16:43:43 +0200 From: markus.t.metzger@intel.com To: mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com Cc: markus.t.metzger@gmail.com, roland@redhat.com, eranian@googlemail.com, oleg@redhat.com, juan.villacis@intel.com, ak@linux.jf.intel.com, linux-kernel@vger.kernel.org, Markus Metzger Subject: [patch 11/20] x86, ds: fix bounds check in ds selftest Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2090 Lines: 61 --===============1150151147== MIME-Version: 1.0 Content-Disposition: inline; filename=tip.master.ds_selftest.bounds_check.patch Fix a bad bounds check in the debug store selftest. Signed-off-by: Markus Metzger --- arch/x86/kernel/ds_selftest.c | 7 6 + 1 - 0 ! 1 file changed, 6 insertions(+), 1 deletion(-) Index: b/arch/x86/kernel/ds_selftest.c =================================================================== --- a/arch/x86/kernel/ds_selftest.c +++ b/arch/x86/kernel/ds_selftest.c @@ -47,8 +47,13 @@ static int ds_selftest_bts_consistency(c printk(KERN_CONT "bad bts buffer setup..."); error = -1; } + /* + * We allow top in [begin; end], since its not clear when the + * overflow adjustment happens: after the increment or before the + * write. + */ if ((trace->ds.top < trace->ds.begin) || - (trace->ds.end <= trace->ds.top)) { + (trace->ds.end < trace->ds.top)) { printk(KERN_CONT "bts top out of bounds..."); error = -1; } -- --===============1150151147== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. --===============1150151147==-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/