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=-5.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 7FAEBC432C3 for ; Thu, 28 Nov 2019 16:14:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 56F95217BC for ; Thu, 28 Nov 2019 16:14:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lca.pw header.i=@lca.pw header.b="GE+oxFtg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726703AbfK1QOl (ORCPT ); Thu, 28 Nov 2019 11:14:41 -0500 Received: from mail-qk1-f194.google.com ([209.85.222.194]:32803 "EHLO mail-qk1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726446AbfK1QOk (ORCPT ); Thu, 28 Nov 2019 11:14:40 -0500 Received: by mail-qk1-f194.google.com with SMTP id c124so18749196qkg.0 for ; Thu, 28 Nov 2019 08:14:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:cc:in-reply-to:to; bh=swAWjg0mWyZStjQq/JoheoQkEGMMdPmGAhVcEaoY9Xg=; b=GE+oxFtgNAcg6ATJOcfNRJ0lYQnf+CYQZpnNvAGWVvLlUMMm1ZBE0v2LoaG8Sv5gVx TQ7KDT/FmW8ULozZHKpdmQCCD7H87rs5XpLvQ0OJoUtrmEczrh0XUs1KkB5FAKUbeJ4m l31UyKZ7ZQYOb/TXZS07ah9oVgMfi/Wr1JngN75TOCq2pVOlbqGsj5MrAMyRANP21c65 0mV3BniwOvi1nuc4BbZU9lw6T/7WQQKPBQsgKyDIgLG01XYKRCPpJfubIv4/CXCYceyb QpaybOq3bVONNtF/zn42GQcvuabSgrhPbVD50XQ/BHBf/MHV/875GCgDLLK4SHhAWzjI 26aQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:from:mime-version :subject:date:message-id:references:cc:in-reply-to:to; bh=swAWjg0mWyZStjQq/JoheoQkEGMMdPmGAhVcEaoY9Xg=; b=MG+GTBu4lVwEN1vcZ7+XCKLIJh92E9xz/tt+DnGJ+zOuIjlkDEdKRzmKYuwexAY5rA kvHYks04t8HV15gJa0elAGzPO6Lht2tApPIpuX2fXq9pQe2uJ/rrMM/Pr0zo6E3oamtF uECzjaiYcdAG8+wTL1n8bYRVy/7FgWCD38h2GLOfQhfucpuH7a7GbqZWG1WGDhJ5/ewc USG4TtZ1oGHsLya89U/mDvHFrpTSBbzJN+xsNI1E+DF/VohTUuglbse2fy2AdpZxbX6N Wl34TAtEbl788x9MzXvn8/rwmp9AMw6zi8gaBM6B8FLnaHfSUC+yosSf/fo5LNIPCStD FJWA== X-Gm-Message-State: APjAAAXRw2iR041hszuI4DyO3pqB5csiP3IdEzPoW4PdhoptGcDK0zIz AbXJIa01RQfH+hPehxroMN6E0A== X-Google-Smtp-Source: APXvYqwmn1ld2Vuf1VCvbx1/sMMTG95qkXhxsIXLZuBxGTgd524dbZVKZj5tWKroDxg56BukvcLyAA== X-Received: by 2002:a05:620a:13cf:: with SMTP id g15mr10594494qkl.195.1574957679840; Thu, 28 Nov 2019 08:14:39 -0800 (PST) Received: from [192.168.1.183] (pool-71-184-117-43.bstnma.fios.verizon.net. [71.184.117.43]) by smtp.gmail.com with ESMTPSA id x8sm9260293qts.82.2019.11.28.08.14.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 28 Nov 2019 08:14:39 -0800 (PST) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable From: Qian Cai Mime-Version: 1.0 (1.0) Subject: Re: [PATCH v2 0/3] ubsan: Split out bounds checker Date: Thu, 28 Nov 2019 11:14:38 -0500 Message-Id: <4B3C1889-DE01-43A5-B0BD-0CFC33A5315A@lca.pw> References: Cc: Kees Cook , Andrew Morton , Andrey Ryabinin , Elena Petrova , Alexander Potapenko , Linus Torvalds , Dan Carpenter , "Gustavo A. R. Silva" , Arnd Bergmann , Ard Biesheuvel , kasan-dev , LKML , kernel-hardening@lists.openwall.com, syzkaller In-Reply-To: To: Dmitry Vyukov X-Mailer: iPhone Mail (17A878) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Nov 28, 2019, at 5:39 AM, 'Dmitry Vyukov' via kasan-dev wrote: >=20 > But also LOCKDEP, KMEMLEAK, ODEBUG, FAULT_INJECTS, etc, all untested > too. Nobody knows what they produce, and if they even still detect > bugs, report false positives, etc. > But that's the kernel testing story... Yes, those work except PROVE_LOCKING where there are existing potential dead= locks are almost impossible to fix them properly now. I have been running th= ose for linux-next daily with all those debugging on where you can borrow th= e configs etc. https://github.com/cailca/linux-mm=