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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 51BD0C433FE for ; Wed, 19 Oct 2022 19:29:05 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C05236B0072; Wed, 19 Oct 2022 15:29:04 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BB5706B0073; Wed, 19 Oct 2022 15:29:04 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A7D296B0074; Wed, 19 Oct 2022 15:29:04 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 9A02B6B0072 for ; Wed, 19 Oct 2022 15:29:04 -0400 (EDT) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 4B0B8AB95F for ; Wed, 19 Oct 2022 19:29:04 +0000 (UTC) X-FDA: 80038687008.25.055DC5E Received: from mail-lj1-f176.google.com (mail-lj1-f176.google.com [209.85.208.176]) by imf12.hostedemail.com (Postfix) with ESMTP id E1C734001A for ; Wed, 19 Oct 2022 19:29:03 +0000 (UTC) Received: by mail-lj1-f176.google.com with SMTP id h8so23486517lja.11 for ; 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=uFej35CYq3/DZQRH5vIPPWKDnFluLsizc80nHVBJAFzwHP/A/UofJWQRj7mq8qWxFK 0nj5PhlkVxjd4ZaieeXTT38X0bxCxVG1Bfgs1rRtfWI4ETPUtWJT2+dLQRvGFn6xLOSn 8Paxecun7kBz7gugn8M3DLrojnRJ6M35nPt1zTCOZTEdOCS9K721ghdmSTyC/gTG6oxy IDj5zMuI8Il6aPKCjn7n+dxxWQxYjxoZA+uY/BwYwCMLdH7k5tYs7LFyiWR1ZjFtLQNh 9krqa79cbLRgx/OKwoCKrbl9fo6Nhn924+oThtSmEinxIxcsO3kOtFHWKv9tbAhUvGhH lHIQ== X-Gm-Message-State: ACrzQf0wz4YWDHrfUvFW3ouevjiQqZwNNBZ8jpHKHL1y//Va+r8Sv2wK PQv40WHtclwloyi14dRBRE2Icoe8H/C2hzK4xvk= 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 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1666207744; h=from:from:sender: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:dkim-signature; bh=1J+LkGJJsG58CkJ3Qd9XTdOjWMcQXIZDNg+2efZ9DT8=; b=YuiYwH5mJ7Y5YM0ue995kKkI32mLdEfWoJexCfvBS6kZRj4wAk4DkylBx19Cfkw1ZXceqx lY4h5p8cDqNxanbVkboosBOK2j8khb6AOG1BsZ1zWS1m2UxMI3Kb2X9IkYHS4LgX+zaYY8 WEd0xt7RQzPK7ohvZ3X/FJenmRRu9UE= ARC-Authentication-Results: i=1; imf12.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b="Zs3D8ie/"; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf12.hostedemail.com: domain of youling257@gmail.com designates 209.85.208.176 as permitted sender) smtp.mailfrom=youling257@gmail.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1666207744; a=rsa-sha256; cv=none; b=03qdP8nGV6iTHjUapjFQnwqivPqMVtG+zoATH54q4382gpKsFtgODzvW8/3Feqdq+qXGTH R1jnEpEnLXtzyrnz4a1On9GnFMCNgOkbXN8Ytuhopf7i0JBgD9jQ4a2RNzcagLgz4xYkHb 9M35wMM47ZwcQPfjRp8ZF/fb2FjRre0= Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b="Zs3D8ie/"; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf12.hostedemail.com: domain of youling257@gmail.com designates 209.85.208.176 as permitted sender) smtp.mailfrom=youling257@gmail.com X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: E1C734001A X-Rspam-User: X-Stat-Signature: cqfh48zk5khncsoyzex1gd9yyjpxyxg1 X-HE-Tag: 1666207743-476498 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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.) >