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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 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 08F94C3A589 for ; Tue, 20 Aug 2019 09:01:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CE4D022CF7 for ; Tue, 20 Aug 2019 09:01:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729340AbfHTJBf (ORCPT ); Tue, 20 Aug 2019 05:01:35 -0400 Received: from mx2.suse.de ([195.135.220.15]:35436 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728879AbfHTJBf (ORCPT ); Tue, 20 Aug 2019 05:01:35 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id F3213B659; Tue, 20 Aug 2019 09:01:33 +0000 (UTC) Message-ID: <1566291689.11678.3.camel@suse.com> Subject: Re: divide error in usbtmc_generic_read From: Oliver Neukum To: Andrey Konovalov , Dmitry Vyukov Cc: syzkaller-bugs , steve_bayless@keysight.com, Greg Kroah-Hartman , guido.kiener@rohde-schwarz.com, syzbot , USB list Date: Tue, 20 Aug 2019 11:01:29 +0200 In-Reply-To: References: <000000000000a59094059013dd63@google.com> <1565875886.5780.7.camel@suse.com> <1566218263.5663.22.camel@suse.com> <1566220164.5663.25.camel@suse.com> <1566222541.5663.27.camel@suse.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Am Montag, den 19.08.2019, 17:40 +0200 schrieb Andrey Konovalov: > > This implies that we can differentiate between different crashes. We > can differentiate between different manifestations of crashes, but > those can be caused by the same bug. I think we can remove the word > "still" though, so the words will be: "syzbot has tested the proposed > patch, but the reproducer triggered a crash". That is exactly my point. There are three cases: - no crash - clearly the same crash - something Yet syzbot has two answers only. We are killing information needlessly. Regards Oliver