Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ACDF2C7618D for ; Mon, 20 Mar 2023 10:26:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229959AbjCTK0n (ORCPT ); Mon, 20 Mar 2023 06:26:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37514 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229449AbjCTK0l (ORCPT ); Mon, 20 Mar 2023 06:26:41 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7BCBD13D69 for ; Mon, 20 Mar 2023 03:25:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1679307948; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FovOfEOpuOZL5itrLvWx74Ygi4oqdIMN2gegQwMT0Rw=; b=fSNF2jvT0YxRxLsAbvO26PXbnuuKpIbsZ41TMDHfGdNtGvN7fs0WRa+uir9FkwNCooG/rg ZOr/Xpchg74HZvIaQs4eAi3giCml/+HNsQpIk33lU7JNqj2NA4nMf9HL5QNOLr3UE3o66r SiwLHXxoLj0KLLzibqFn7QwmHv2WOV4= Received: from mail-wm1-f72.google.com (mail-wm1-f72.google.com [209.85.128.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-427-Pd_zwJ4QOCmyZmotkFDZ2w-1; Mon, 20 Mar 2023 06:25:46 -0400 X-MC-Unique: Pd_zwJ4QOCmyZmotkFDZ2w-1 Received: by mail-wm1-f72.google.com with SMTP id p10-20020a05600c358a00b003edf7d484d4so787794wmq.0 for ; Mon, 20 Mar 2023 03:25:46 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679307945; h=content-transfer-encoding:in-reply-to:organization:from:references :cc:to:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=FovOfEOpuOZL5itrLvWx74Ygi4oqdIMN2gegQwMT0Rw=; b=GAfT6IIo0kwozjXYVoLbJCsLJkXQrTVGQaFUmY3AfnZktZwGxxl9SMhcDrsioaqLqt FWmRNGPcjTauE0Sr48+cDmQsw5u6Hey07ViO32GHM3rm/bGsDeAi/RGw0qWV0yd+afG0 ej5saTaD6ikpRo+PZpA+NAPMun0wsHeszut0s6myPlYxcZY5M+UcO/JfeuNC+C/bMJ3b y674n9I2kQPhTT+waXmy0BZIU8Lg5kDHOgRsljEJZnrpri1b4XDp5p/OJedlKyw2L3rI oFZqpl+QpxabK2HhJ0VTm/RTEneWAs+JbH2ZR0E5vE36URElrdU0dfdhMe5OXnqce7X+ 5E3Q== X-Gm-Message-State: AO0yUKWFMqaLQQzlldnyqYZBTB12sgiNtYREqpU9cDLtDfu8wH2SUuMP z+yikTw4oWhRDC5nDQZnKi5UrHj3UNLhDl+MR55BYUvnP3Xip2TNNnvTBvLxuuXXEVGWZog8qoa uj5XmJoLBfiBg7yIp4ERyiIG0eCZ8izrL X-Received: by 2002:a05:6000:14b:b0:2cb:9d29:7242 with SMTP id r11-20020a056000014b00b002cb9d297242mr12719406wrx.27.1679307945590; Mon, 20 Mar 2023 03:25:45 -0700 (PDT) X-Google-Smtp-Source: AK7set96fKEZIQf41YMG0JSWp35mbtllNHqd4n3a0BHrRb97FZpfKIOWiOEujkxHnE5Au6qgvaW8ew== X-Received: by 2002:a05:6000:14b:b0:2cb:9d29:7242 with SMTP id r11-20020a056000014b00b002cb9d297242mr12719396wrx.27.1679307945295; Mon, 20 Mar 2023 03:25:45 -0700 (PDT) Received: from ?IPV6:2003:cb:c702:4100:a064:1ded:25ec:cf2f? (p200300cbc7024100a0641ded25eccf2f.dip0.t-ipconnect.de. [2003:cb:c702:4100:a064:1ded:25ec:cf2f]) by smtp.gmail.com with ESMTPSA id 1-20020a05600c22c100b003ede06f3178sm3967481wmg.31.2023.03.20.03.25.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 20 Mar 2023 03:25:44 -0700 (PDT) Message-ID: <4ab36009-51c0-6583-4948-b267f8fbf32a@redhat.com> Date: Mon, 20 Mar 2023 11:25:43 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH v4 2/2] selftests/mm: Smoke test UFFD_FEATURE_WP_UNPOPULATED Content-Language: en-US To: Peter Xu , linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Nadav Amit , Axel Rasmussen , Paul Gofman , Muhammad Usama Anjum , Mike Rapoport , Andrea Arcangeli , Andrew Morton References: <20230309223711.823547-1-peterx@redhat.com> <20230309223711.823547-3-peterx@redhat.com> From: David Hildenbrand Organization: Red Hat In-Reply-To: <20230309223711.823547-3-peterx@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09.03.23 23:37, Peter Xu wrote: > Enable it by default on the stress test, and add some smoke tests for the > pte markers on anonymous. Would it make sense to make kernel support optional and test both paths -- once with the feature enabled (if available on the kernel we're testing) and once with the feature disabled? -- Thanks, David / dhildenb