Message ID | alpine.LFD.2.20.1602121318080.1773@schleppi (mailing list archive) |
---|---|
State | Not Applicable |
Headers | show
Return-Path: <linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org> X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 26D1F140BE0 for <patchwork-incoming@ozlabs.org>; Fri, 12 Feb 2016 23:23:00 +1100 (AEDT) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id EE5AF1A00B6 for <patchwork-incoming@ozlabs.org>; Fri, 12 Feb 2016 23:22:59 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from e06smtp14.uk.ibm.com (e06smtp14.uk.ibm.com [195.75.94.110]) (using TLSv1 with cipher CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 5E8211A002B for <linuxppc-dev@lists.ozlabs.org>; Fri, 12 Feb 2016 23:21:59 +1100 (AEDT) Received: from localhost by e06smtp14.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Fri, 12 Feb 2016 12:21:54 -0000 X-IBM-Helo: d06dlp02.portsmouth.uk.ibm.com X-IBM-MailFrom: sebott@linux.vnet.ibm.com X-IBM-RcptTo: linuxppc-dev@lists.ozlabs.org Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by d06dlp02.portsmouth.uk.ibm.com (Postfix) with ESMTP id C0F402190067 for <linuxppc-dev@lists.ozlabs.org>; Fri, 12 Feb 2016 12:21:39 +0000 (GMT) Received: from d06av03.portsmouth.uk.ibm.com (d06av03.portsmouth.uk.ibm.com [9.149.37.213]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u1CCLswF14286870 for <linuxppc-dev@lists.ozlabs.org>; Fri, 12 Feb 2016 12:21:54 GMT Received: from d06av03.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av03.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u1CCLmIf019053 for <linuxppc-dev@lists.ozlabs.org>; Fri, 12 Feb 2016 05:21:53 -0700 Received: from dyn-9-152-212-126.boeblingen.de.ibm.com (dyn-9-152-212-126.boeblingen.de.ibm.com [9.152.212.126]) by d06av03.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u1CCLlgp019008 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 12 Feb 2016 05:21:47 -0700 Date: Fri, 12 Feb 2016 13:21:46 +0100 (CET) From: Sebastian Ott <sebott@linux.vnet.ibm.com> X-X-Sender: sebott@schleppi To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Subject: Re: [BUG] random kernel crashes after THP rework on s390 (maybe also on PowerPC and ARM) In-Reply-To: <20160211191253.GA8589@black.fi.intel.com> Message-ID: <alpine.LFD.2.20.1602121318080.1773@schleppi> References: <20160211192223.4b517057@thinkpad> <20160211190942.GA10244@node.shutemov.name> <20160211191253.GA8589@black.fi.intel.com> User-Agent: Alpine 2.20 (LFD 67 2015-01-07) Organization: =?ISO-8859-15?Q?=22IBM_Deutschland_Research_&_Development_GmbH_=2F_Vorsitzende_des_Aufsichtsrats=3A_Martina_Koederitz_Gesch=E4ftsf=FChrung=3A_Dirk_Wittkopp_Sitz_der_Gesellschaft=3A_B=F6blingen_=2F_Registergericht?= =?ISO-8859-15?Q?=3A_Amtsgericht_Stuttgart=2C_HRB_243294=22?= MIME-Version: 1.0 X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16021212-0017-0000-0000-00000725A9FD X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/> List-Post: <mailto:linuxppc-dev@lists.ozlabs.org> List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe> Cc: linux-arm-kernel@lists.infradead.org, linux-s390@vger.kernel.org, Catalin Marinas <catalin.marinas@arm.com>, Heiko Carstens <heiko.carstens@de.ibm.com>, linuxppc-dev@lists.ozlabs.org, Will Deacon <will.deacon@arm.com>, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Paul Mackerras <paulus@samba.org>, "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>, Martin Schwidefsky <schwidefsky@de.ibm.com>, "Kirill A. Shutemov" <kirill@shutemov.name>, Andrew Morton <akpm@linux-foundation.org>, Linus Torvalds <torvalds@linux-foundation.org>, Gerald Schaefer <gerald.schaefer@de.ibm.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" <linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org> |
--- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1587,6 +1587,8 @@ static inline void pmdp_invalidate(struc unsigned long address, pmd_t *pmdp) { pmdp_flush_direct(vma->vm_mm, address, pmdp); + /* Serialize against fast_gup with IPI */ + kick_all_cpus_sync(); } #define __HAVE_ARCH_PMDP_SET_WRPROTECT