From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 061A1C56201 for ; Fri, 23 Oct 2020 11:25:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AA2B7208B3 for ; Fri, 23 Oct 2020 11:25:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603452322; bh=80IGgVr3jLT0tbKyUqY9AiiK9kcb+f4SmS4LteQxqm8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=CkDz2g2frNWuTq/0k/Jv3R7qNIVJIMybvy7L2WMqboyeddSvjx3VKQjDAvs+aHLgj mQ5ujCByUX0A4IyM32OwtB2iGjwBR1pZn/2+d+CxuAsnqgh6jppHFZYtPJXfuUEPid fHtlLLy20rxYY4zfidMO1w4h7LzVLTIx8qgZcjMI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S462948AbgJWLZV (ORCPT ); Fri, 23 Oct 2020 07:25:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:40590 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S462887AbgJWLZV (ORCPT ); Fri, 23 Oct 2020 07:25:21 -0400 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7521F20874; Fri, 23 Oct 2020 11:25:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603452320; bh=80IGgVr3jLT0tbKyUqY9AiiK9kcb+f4SmS4LteQxqm8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=hUUB8LRrYirMa7dtXS99Rfw/OcLZjncqFjJU853emGSXkp21c3O94EkA3aY/IDq4T oQcoVwm2lzKE2+mou3F94TBpdoMDQFhh2aJfUdKjnesllLLdWgmKfx40YI66uhZr6+ K6Ge3tlkjn7ZZS9Nhkv+CJC1yQjQ3nR7lndklDCk= Date: Fri, 23 Oct 2020 12:25:15 +0100 From: Will Deacon To: Christophe Leroy Cc: Dmitry Safonov <0x7f454c46@gmail.com>, Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , nathanl@linux.ibm.com, linux-arch , Arnd Bergmann , open list , Andy Lutomirski , Thomas Gleixner , Vincenzo Frascino , linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH v8 2/8] powerpc/vdso: Remove __kernel_datapage_offset and simplify __get_datapage() Message-ID: <20201023112514.GE20933@willie-the-truck> References: <87wo34tbas.fsf@mpe.ellerman.id.au> <2f9b7d02-9e2f-4724-2608-c5573f6507a2@csgroup.eu> <6862421a-5a14-2e38-b825-e39e6ad3d51d@csgroup.eu> <87imd5h5kb.fsf@mpe.ellerman.id.au> <87a6yf34aj.fsf@mpe.ellerman.id.au> <20200921112638.GC2139@willie-the-truck> <542145eb-7d90-0444-867e-c9cbb6bdd8e3@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 23, 2020 at 01:22:04PM +0200, Christophe Leroy wrote: > Hi Dmitry, > > Le 28/09/2020 à 17:08, Dmitry Safonov a écrit : > > On 9/27/20 8:43 AM, Christophe Leroy wrote: > > > > > > > > > Le 21/09/2020 à 13:26, Will Deacon a écrit : > > > > On Fri, Aug 28, 2020 at 12:14:28PM +1000, Michael Ellerman wrote: > > > > > Dmitry Safonov <0x7f454c46@gmail.com> writes: > > [..] > > > > > > I'll cook a patch for vm_special_mapping if you don't mind :-) > > > > > > > > > > That would be great, thanks! > > > > > > > > I lost track of this one. Is there a patch kicking around to resolve > > > > this, > > > > or is the segfault expected behaviour? > > > > > > > > > > IIUC dmitry said he will cook a patch. I have not seen any patch yet. > > > > Yes, sorry about the delay - I was a bit busy with xfrm patches. > > > > I'll send patches for .close() this week, working on them now. > > I haven't seen the patches, did you sent them out finally ? I think it's this series: https://lore.kernel.org/r/20201013013416.390574-1-dima@arista.com but they look really invasive to me, so I may cook a small hack for arm64 in the meantine / for stable. Will From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D7E43C388F9 for ; Fri, 23 Oct 2020 11:30:30 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 19F97208B3 for ; Fri, 23 Oct 2020 11:30:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="hUUB8LRr" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 19F97208B3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4CHhqR047yzDqMx for ; Fri, 23 Oct 2020 22:30:27 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=will@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=default header.b=hUUB8LRr; dkim-atps=neutral Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4CHhjd3PkPzDqwP for ; Fri, 23 Oct 2020 22:25:25 +1100 (AEDT) Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7521F20874; Fri, 23 Oct 2020 11:25:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603452320; bh=80IGgVr3jLT0tbKyUqY9AiiK9kcb+f4SmS4LteQxqm8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=hUUB8LRrYirMa7dtXS99Rfw/OcLZjncqFjJU853emGSXkp21c3O94EkA3aY/IDq4T oQcoVwm2lzKE2+mou3F94TBpdoMDQFhh2aJfUdKjnesllLLdWgmKfx40YI66uhZr6+ K6Ge3tlkjn7ZZS9Nhkv+CJC1yQjQ3nR7lndklDCk= Date: Fri, 23 Oct 2020 12:25:15 +0100 From: Will Deacon To: Christophe Leroy Subject: Re: [PATCH v8 2/8] powerpc/vdso: Remove __kernel_datapage_offset and simplify __get_datapage() Message-ID: <20201023112514.GE20933@willie-the-truck> References: <87wo34tbas.fsf@mpe.ellerman.id.au> <2f9b7d02-9e2f-4724-2608-c5573f6507a2@csgroup.eu> <6862421a-5a14-2e38-b825-e39e6ad3d51d@csgroup.eu> <87imd5h5kb.fsf@mpe.ellerman.id.au> <87a6yf34aj.fsf@mpe.ellerman.id.au> <20200921112638.GC2139@willie-the-truck> <542145eb-7d90-0444-867e-c9cbb6bdd8e3@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: nathanl@linux.ibm.com, linux-arch , Arnd Bergmann , Dmitry Safonov <0x7f454c46@gmail.com>, open list , Paul Mackerras , Andy Lutomirski , Thomas Gleixner , Vincenzo Frascino , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Fri, Oct 23, 2020 at 01:22:04PM +0200, Christophe Leroy wrote: > Hi Dmitry, > > Le 28/09/2020 à 17:08, Dmitry Safonov a écrit : > > On 9/27/20 8:43 AM, Christophe Leroy wrote: > > > > > > > > > Le 21/09/2020 à 13:26, Will Deacon a écrit : > > > > On Fri, Aug 28, 2020 at 12:14:28PM +1000, Michael Ellerman wrote: > > > > > Dmitry Safonov <0x7f454c46@gmail.com> writes: > > [..] > > > > > > I'll cook a patch for vm_special_mapping if you don't mind :-) > > > > > > > > > > That would be great, thanks! > > > > > > > > I lost track of this one. Is there a patch kicking around to resolve > > > > this, > > > > or is the segfault expected behaviour? > > > > > > > > > > IIUC dmitry said he will cook a patch. I have not seen any patch yet. > > > > Yes, sorry about the delay - I was a bit busy with xfrm patches. > > > > I'll send patches for .close() this week, working on them now. > > I haven't seen the patches, did you sent them out finally ? I think it's this series: https://lore.kernel.org/r/20201013013416.390574-1-dima@arista.com but they look really invasive to me, so I may cook a small hack for arm64 in the meantine / for stable. Will