From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f52.google.com (mail-pa0-f52.google.com [209.85.220.52]) by kanga.kvack.org (Postfix) with ESMTP id 63CE36B009C for ; Mon, 2 Jun 2014 19:38:26 -0400 (EDT) Received: by mail-pa0-f52.google.com with SMTP id bj1so4402767pad.39 for ; Mon, 02 Jun 2014 16:38:26 -0700 (PDT) Received: from mga09.intel.com (mga09.intel.com. [134.134.136.24]) by mx.google.com with ESMTP id fd3si17607600pbb.179.2014.06.02.16.38.25 for ; Mon, 02 Jun 2014 16:38:25 -0700 (PDT) From: "Luck, Tony" Subject: RE: [PATCH 0/3] HWPOISON: improve memory error handling for multithread process Date: Mon, 2 Jun 2014 23:37:58 +0000 Message-ID: <3908561D78D1C84285E8C5FCA982C28F328268B7@ORSMSX114.amr.corp.intel.com> References: <53877e9c.8b2cdc0a.1604.ffffea43SMTPIN_ADDED_BROKEN@mx.google.com> <1401432670-24664-1-git-send-email-n-horiguchi@ah.jp.nec.com> <3908561D78D1C84285E8C5FCA982C28F32823225@ORSMSX114.amr.corp.intel.com> <5388cd0e.463edd0a.755d.6f61SMTPIN_ADDED_BROKEN@mx.google.com> <20140602154302.595a54190afdffd4b50f22c2@linux-foundation.org> In-Reply-To: <20140602154302.595a54190afdffd4b50f22c2@linux-foundation.org> Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton , Naoya Horiguchi Cc: Andi Kleen , Kamil Iskra , Borislav Petkov , Chen Gong , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" > I'm not sure that "[PATCH 3/3] mm/memory-failure.c: support dedicated > thread to handle SIGBUS(BUS_MCEERR_AO)" is a -stable thing? That's a > feature addition more than a bugfix? No - the old behavior was crazy - someone with a multithreaded process migh= t well expect that if they call prctl(PF_MCE_EARLY) in just one thread, then = that thread would see the SIGBUS with si_code =3D BUS_MCEERR_A0 - even if that thread wasn't the main thread for the process. Perhaps the description for the commit should better reflect that? -Tony -- 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