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=-3.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 E054FC433E2 for ; Mon, 13 Jul 2020 10:18:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B411F20773 for ; Mon, 13 Jul 2020 10:18:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="WuQ0kxda" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729518AbgGMKSp (ORCPT ); Mon, 13 Jul 2020 06:18:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45644 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729492AbgGMKSo (ORCPT ); Mon, 13 Jul 2020 06:18:44 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8EFF1C061755; Mon, 13 Jul 2020 03:18:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=0o9oacOGT+yOP9IRqdUPc2s8dF57vl7CrgaxsIQm6kY=; b=WuQ0kxda7+r8HBqZI0FTm2qhm+ 5A9vgpkAf8rH1wmYr9cGGMxCB9LiUQKW0DN9hpk5Oh4UK/n9SNW5Wulb0Pt0qfbYfyeBv7Za3kMMm hPYnPgMcWIVNDuCYT443bmjIgq8Ca3Rgo55/ecfAP9NTnGSoG/65q+OjIfCA4bvkRurASiiBCjs4F Z1aw3KpdXkUMypAla0yUfu60Y20JM4i36X5ivA4NLys3HN2y/+F18dk31OdpI1A2fSJet0cEQ4XXS TUenmlDt7ff0mPmWSDxtFbrzMxjay79EfqNOcFxVm4NO3MI+hKwsLn2HoaeqnCKgudpp1fV/A1BAk UjLSA/Bw==; Received: from hch by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1juvXg-0000B0-6d; Mon, 13 Jul 2020 10:18:36 +0000 Date: Mon, 13 Jul 2020 11:18:36 +0100 From: Christoph Hellwig To: syzbot Cc: andriin@fb.com, ast@kernel.org, axboe@kernel.dk, bpf@vger.kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com, kafai@fb.com, kpsingh@chromium.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, yhs@fb.com Subject: Re: WARNING in submit_bio_checks Message-ID: <20200713101836.GA536@infradead.org> References: <00000000000029663005aa23cff4@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <00000000000029663005aa23cff4@google.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Fri, Jul 10, 2020 at 10:34:19PM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: This is not a crash, but a WARN_ONCE. A pre-existing one that just slightly changed the printed message recently.