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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,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 6DE78CA9ECB for ; Thu, 31 Oct 2019 20:13:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3C8662087F for ; Thu, 31 Oct 2019 20:13:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=sifive.com header.i=@sifive.com header.b="WJknctNb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729736AbfJaUNt (ORCPT ); Thu, 31 Oct 2019 16:13:49 -0400 Received: from mail-io1-f68.google.com ([209.85.166.68]:33054 "EHLO mail-io1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726741AbfJaUNs (ORCPT ); Thu, 31 Oct 2019 16:13:48 -0400 Received: by mail-io1-f68.google.com with SMTP id n17so8263167ioa.0 for ; Thu, 31 Oct 2019 13:13:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=date:from:to:cc:subject:in-reply-to:message-id:references :user-agent:mime-version; bh=edoR3drkOe7+sAAN2C14zGy1y4TkfH6JZVLoKAB2I1c=; b=WJknctNbQNnq4Hj+o22VpWRFtQqoOiBTkKHsk+HRvEVy3BoU1PzUyESIxTdd5FfBNH Da4DbpwX4BAQlSPVaEP7HsjwY9tNc8Rk0+O/ClWYh/dL8GvxUSFIlW/xtAbIp8ssk2d4 4QMY/4gASgyN4iTUy8LHtcceXfR3Fmirw1+KY5PwZIJ9oFB1X6Lq4K59XRIj4RQGfD5Q HyWcdFwWXhpYTk5RAIfNZVGGNH1JTPuKcCPvlNICWWRvaBP4hzyhKAVU1SKNYydCzfKm qlvJ+WFDWwM6b19TOzxn0xl7auPIlqje8Z+XWsHJNp7ymmWMhE3tHe7oKrh2Q00rf+iN FPTA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:in-reply-to:message-id :references:user-agent:mime-version; bh=edoR3drkOe7+sAAN2C14zGy1y4TkfH6JZVLoKAB2I1c=; b=sZqMeOLLUP1g7MZ7GGofiKHLkp7T5R0Abzxw7JYqAlAxnyU7g5K1EDY81E+rw/IdWy /KtUWRgCLuwDTd8OuYUZHxBs2ai/IKJl18xiwN66TwiVh4nHUyOtjjI+HkNfXe2+llwd DRtsnzL+IZ12W97fMk4dnwabDgAXCgbQAk0uBAK06B329vppkgetUN7MOxyKmf9tQBHQ LPokTHs5Mr34M1Zl5NQ/NBDAcLGr/bpFjIPA2CyYCUGZ29eFXW0XgoELjfryC4OGt8cc 7obDcwawvy91JWoTwsgMu+PK2PWEUmv8Jw4LbtW4JViTJxotFg6roVk9Slehr4AaS1vk /ypg== X-Gm-Message-State: APjAAAWAV1FEsiL5tkFzuy1E96+gqn9AGsozYjio6CROhQWF8chXifwd I9D83FY+Eo8EB5g7uEGtSGsKFg== X-Google-Smtp-Source: APXvYqwu18NgGtxYghLIqdGrPlyUezIGUUPxppmYLKUKXEShdep9/77fPJTZMl39SlwLPxfbxPxnCg== X-Received: by 2002:a02:cc66:: with SMTP id j6mr1049512jaq.61.1572552827929; Thu, 31 Oct 2019 13:13:47 -0700 (PDT) Received: from localhost ([64.62.168.194]) by smtp.gmail.com with ESMTPSA id h11sm436841ioq.57.2019.10.31.13.13.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Oct 2019 13:13:47 -0700 (PDT) Date: Thu, 31 Oct 2019 13:13:45 -0700 (PDT) From: Paul Walmsley X-X-Sender: paulw@viisi.sifive.com To: Christoph Hellwig cc: Palmer Dabbelt , Damien Le Moal , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: RISC-V nommu support v6 In-Reply-To: <20191031155222.GA7270@lst.de> Message-ID: References: <20191028121043.22934-1-hch@lst.de> <20191031155222.GA7270@lst.de> User-Agent: Alpine 2.21.9999 (DEB 301 2018-08-15) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 31 Oct 2019, Christoph Hellwig wrote: > On Wed, Oct 30, 2019 at 01:21:21PM -0700, Paul Walmsley wrote: > > I tried building this series from your git branch mentioned above, and > > booted it with a buildroot userspace built from your custom buildroot > > tree. Am seeing some segmentation faults from userspace (below). > > > > Am still planning to merge your patches. > > > > But I'm wondering whether you are seeing these segmentation faults also? > > Or is it something that might be specific to my test setup? > > I just built a fresh image using make -j4 with that report and it works > perfectly fine with my tree. OK, good to know. If there are other folks out there who are using Christoph's nommu patch set, it'd be great to get testing feedback. - Paul