From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1949138AbcBSORv (ORCPT ); Fri, 19 Feb 2016 09:17:51 -0500 Received: from e06smtp05.uk.ibm.com ([195.75.94.101]:34725 "EHLO e06smtp05.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1946757AbcBSOP5 (ORCPT ); Fri, 19 Feb 2016 09:15:57 -0500 X-IBM-Helo: d06dlp03.portsmouth.uk.ibm.com X-IBM-MailFrom: sebott@linux.vnet.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org;linux-s390@vger.kernel.org Date: Fri, 19 Feb 2016 15:15:50 +0100 (CET) From: Sebastian Ott X-X-Sender: sebott@schleppi To: "Kirill A. Shutemov" cc: Gerald Schaefer , Andrea Arcangeli , Christian Borntraeger , "Kirill A. Shutemov" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Aneesh Kumar K.V" , Andrew Morton , Linus Torvalds , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , linuxppc-dev@lists.ozlabs.org, Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org, Martin Schwidefsky , Heiko Carstens , linux-s390@vger.kernel.org Subject: Re: [BUG] random kernel crashes after THP rework on s390 (maybe also on PowerPC and ARM) In-Reply-To: <20160218170658.GC28184@node.shutemov.name> Message-ID: References: <20160211190942.GA10244@node.shutemov.name> <20160211205702.24f0d17a@thinkpad> <20160212154116.GA15142@node.shutemov.name> <56BE00E7.1010303@de.ibm.com> <20160212181640.4eabb85f@thinkpad> <20160212231510.GB15142@node.shutemov.name> <20160217201340.2dafad8d@thinkpad> <20160217235808.GA21696@node.shutemov.name> <20160218160037.627cc7ec@thinkpad> <20160218170658.GC28184@node.shutemov.name> 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 Content-Type: text/plain; charset=US-ASCII X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16021914-0021-0000-0000-000005DD9068 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 18 Feb 2016, Kirill A. Shutemov wrote: > I worth minimizing kernel config on which you can see the bug. Things like > CONFIG_DEBUG_PAGEALLOC used to interfere with THP before. I disabled all debugging options (using arch/s390/configs/performance_defconfig) - we still chrashed. Sebastian From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f46.google.com (mail-wm0-f46.google.com [74.125.82.46]) by kanga.kvack.org (Postfix) with ESMTP id 3B3D66B0005 for ; Fri, 19 Feb 2016 09:16:06 -0500 (EST) Received: by mail-wm0-f46.google.com with SMTP id a4so72691039wme.1 for ; Fri, 19 Feb 2016 06:16:06 -0800 (PST) Received: from e06smtp08.uk.ibm.com (e06smtp08.uk.ibm.com. [195.75.94.104]) by mx.google.com with ESMTPS id t82si12977852wmg.117.2016.02.19.06.16.04 for (version=TLS1_2 cipher=AES128-SHA bits=128/128); Fri, 19 Feb 2016 06:16:05 -0800 (PST) Received: from localhost by e06smtp08.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 19 Feb 2016 14:16:04 -0000 Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by d06dlp01.portsmouth.uk.ibm.com (Postfix) with ESMTP id E484317D8042 for ; Fri, 19 Feb 2016 14:16:10 +0000 (GMT) Received: from d06av02.portsmouth.uk.ibm.com (d06av02.portsmouth.uk.ibm.com [9.149.37.228]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u1JEFppF14024874 for ; Fri, 19 Feb 2016 14:15:51 GMT Received: from d06av02.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av02.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u1JEFoX4026541 for ; Fri, 19 Feb 2016 07:15:51 -0700 Date: Fri, 19 Feb 2016 15:15:50 +0100 (CET) From: Sebastian Ott Subject: Re: [BUG] random kernel crashes after THP rework on s390 (maybe also on PowerPC and ARM) In-Reply-To: <20160218170658.GC28184@node.shutemov.name> Message-ID: References: <20160211190942.GA10244@node.shutemov.name> <20160211205702.24f0d17a@thinkpad> <20160212154116.GA15142@node.shutemov.name> <56BE00E7.1010303@de.ibm.com> <20160212181640.4eabb85f@thinkpad> <20160212231510.GB15142@node.shutemov.name> <20160217201340.2dafad8d@thinkpad> <20160217235808.GA21696@node.shutemov.name> <20160218160037.627cc7ec@thinkpad> <20160218170658.GC28184@node.shutemov.name> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: "Kirill A. Shutemov" Cc: Gerald Schaefer , Andrea Arcangeli , Christian Borntraeger , "Kirill A. Shutemov" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Aneesh Kumar K.V" , Andrew Morton , Linus Torvalds , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , linuxppc-dev@lists.ozlabs.org, Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org, Martin Schwidefsky , Heiko Carstens , linux-s390@vger.kernel.org On Thu, 18 Feb 2016, Kirill A. Shutemov wrote: > I worth minimizing kernel config on which you can see the bug. Things like > CONFIG_DEBUG_PAGEALLOC used to interfere with THP before. I disabled all debugging options (using arch/s390/configs/performance_defconfig) - we still chrashed. Sebastian -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 From: sebott@linux.vnet.ibm.com (Sebastian Ott) Date: Fri, 19 Feb 2016 15:15:50 +0100 (CET) Subject: [BUG] random kernel crashes after THP rework on s390 (maybe also on PowerPC and ARM) In-Reply-To: <20160218170658.GC28184@node.shutemov.name> References: <20160211190942.GA10244@node.shutemov.name> <20160211205702.24f0d17a@thinkpad> <20160212154116.GA15142@node.shutemov.name> <56BE00E7.1010303@de.ibm.com> <20160212181640.4eabb85f@thinkpad> <20160212231510.GB15142@node.shutemov.name> <20160217201340.2dafad8d@thinkpad> <20160217235808.GA21696@node.shutemov.name> <20160218160037.627cc7ec@thinkpad> <20160218170658.GC28184@node.shutemov.name> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, 18 Feb 2016, Kirill A. Shutemov wrote: > I worth minimizing kernel config on which you can see the bug. Things like > CONFIG_DEBUG_PAGEALLOC used to interfere with THP before. I disabled all debugging options (using arch/s390/configs/performance_defconfig) - we still chrashed. Sebastian