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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82356C433FE for ; Wed, 19 Oct 2022 19:29:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230307AbiJST3H (ORCPT ); Wed, 19 Oct 2022 15:29:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229936AbiJST3F (ORCPT ); Wed, 19 Oct 2022 15:29:05 -0400 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [IPv6:2a00:1450:4864:20::22b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0BA611960A3; Wed, 19 Oct 2022 12:29:04 -0700 (PDT) Received: by mail-lj1-x22b.google.com with SMTP id a6so23493634ljq.5; Wed, 19 Oct 2022 12:29:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:cc:to:subject:message-id:date:from :references:in-reply-to:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=1J+LkGJJsG58CkJ3Qd9XTdOjWMcQXIZDNg+2efZ9DT8=; b=Zs3D8ie/O78VXdUFRbswnnVyMUFKQTi+weY/1rbfp0bq2vH4HC+4WLyeQVMXHPYCAi 2ECkR/KLht8Hyqa3u2Z0PQC1zsqs1nr5elWU/6lftN85gXuL4+vQ+fwZns1FtCnp5Jxw qSopG89Arj3LY54xjxvkbBdgMT/cgvL2QvQjYNBrWIDlqcHiJZ8wVIUNe5/p2yafobMH DnICUEblvNYeI69wK3h6gx1Kzy8oiKELAPgzmBmz7GTs97IH9q6ahlbKctexF3JZYQuW rwtwT7TvHoAVzG1+nXmvdN5ZyW5yDdOt/Y0LeejRX9gtyUXq0FHVQIDXv5ysgrta+ri0 1nag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:cc:to:subject:message-id:date:from :references:in-reply-to:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=1J+LkGJJsG58CkJ3Qd9XTdOjWMcQXIZDNg+2efZ9DT8=; b=6zWQSWgwRVFlroCS9neZlVrn446RpV3NSJfRwwUvWPr8R8s/4K/vRhh4980qGzTenG U077zQE8XbYzHVvxQsggbFikZuIGi49EdFZ4BnhQ5QpGvCjUKCP/pQS3CuxQOLza4PSq SFgBnyTptyZ1IXIDTbvkQHOSZWLsuB4lemrF07cLW1hEFabKQV5lWldRfrsbtSlgvZ/M YDYFPZapsBHDf0ckNj2zJ3q+/IvLt6J184Mgg8O4AsfxWph87bJeda3eL6+WYcIpRCAv YFx1Enhj8b8mBTPSBDHLIT3ytKELTwKfLnwtPQu+gpdW0ItEwBSrlI8w5P6qWljuKD1e teJg== X-Gm-Message-State: ACrzQf11WoNgN8SdrcVNBLc+yF223TL5a1XW6nlclJxIbGuYbPnBTUwq 73DWg8wVPkzQSNV/MqDj44AfBfQb+J4XIwk8jE0= X-Google-Smtp-Source: AMsMyM4/a8mro7O35SGkjXAGwMZz8FGjEXZwFrLyoLo7XaOhAeR+5e35yobKB5fffcFn7Qi0JTM+jG1hgh5hA0qfPsg= X-Received: by 2002:a2e:8796:0:b0:26e:8b13:a29c with SMTP id n22-20020a2e8796000000b0026e8b13a29cmr3457109lji.210.1666207742198; Wed, 19 Oct 2022 12:29:02 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:ab3:5411:0:b0:1f6:575a:5fb7 with HTTP; Wed, 19 Oct 2022 12:29:01 -0700 (PDT) In-Reply-To: References: <20220915150417.722975-19-glider@google.com> <20221019173620.10167-1-youling257@gmail.com> From: youling 257 Date: Thu, 20 Oct 2022 03:29:01 +0800 Message-ID: Subject: Re: [PATCH v7 18/43] instrumented.h: add KMSAN support To: Marco Elver Cc: Alexander Viro , Alexei Starovoitov , Andrew Morton , Andrey Konovalov , Andy Lutomirski , Arnd Bergmann , Borislav Petkov , Christoph Hellwig , Christoph Lameter , David Rientjes , Dmitry Vyukov , Eric Biggers , Eric Dumazet , Greg Kroah-Hartman , Herbert Xu , Ilya Leoshkevich , Ingo Molnar , Jens Axboe , Joonsoo Kim , Kees Cook , Mark Rutland , Matthew Wilcox , "Michael S. Tsirkin" , Pekka Enberg , Peter Zijlstra , Petr Mladek , Stephen Rothwell , Steven Rostedt , Thomas Gleixner , Vasily Gorbik , Vegard Nossum , Vlastimil Babka , kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org arch x86, this's my revert, https://github.com/youling257/android-mainline/commit/401cbfa61cbfc20c87a5b= e8e2dda68ac5702389f i tried different revert, have to remove kmsan_copy_to_user. 2022-10-20 1:58 GMT+08:00, Marco Elver : > On Wed, 19 Oct 2022 at 10:37, youling 257 wrote: >> >> >> >> ---------- Forwarded message --------- >> =E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9A youling257 >> Date: 2022=E5=B9=B410=E6=9C=8820=E6=97=A5=E5=91=A8=E5=9B=9B =E4=B8=8A=E5= =8D=881:36 >> Subject: Re: [PATCH v7 18/43] instrumented.h: add KMSAN support >> To: >> Cc: >> >> >> i using linux kernel 6.1rc1 on android, i use gcc12 build kernel 6.1 for >> android, CONFIG_KMSAN is not set. >> "instrumented.h: add KMSAN support" cause android bluetooth high CPU >> usage. >> git bisect linux kernel 6.1rc1, "instrumented.h: add KMSAN support" is a >> bad commit for my android. >> >> this is my kernel 6.1, revert include/linux/instrumented.h fix high cpu >> usage problem. >> https://github.com/youling257/android-mainline/commits/6.1 > > What arch? > If x86, can you try to revert only the change to > instrument_get_user()? (I wonder if the u64 conversion is causing > issues.) >