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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 8DD67C43381 for ; Thu, 21 Mar 2019 17:30:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5DC6621874 for ; Thu, 21 Mar 2019 17:30:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728737AbfCURaB (ORCPT ); Thu, 21 Mar 2019 13:30:01 -0400 Received: from mail-it1-f197.google.com ([209.85.166.197]:60072 "EHLO mail-it1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728157AbfCURaB (ORCPT ); Thu, 21 Mar 2019 13:30:01 -0400 Received: by mail-it1-f197.google.com with SMTP id q192so3085054itb.9 for ; Thu, 21 Mar 2019 10:30:00 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=fLQGdQSSgHknyy/V+VRgiv7MKw96VhP0gMOndDdmz54=; b=joA5HDWzcRh6g2Zq3FISafFXzRnIIGRlt5HKJU5BhN95wl6s3m6YCfkvNT7KBP71jG WFCqDvOtcxoNNeHfkj/OFVYCtaPcRB8f+dt/kpkqVRyzDChMRAsavNJULPf1mCZYK766 eIP7Ro+nO+eeaAArpuFW3GCBTfGGuIqx3WGBha+RHInAiFl1pf3S+poutdF+7vp4wfWL W4C6DiDl4hkogldKAfaOR2vKGBff2YJchxOFpE+z35D3yNRm+85+49x+P0ZSFl+ZcnY0 bjj0f+H8ixZ/QNlyCDaoi5eT48Y+n/arILkxkkHmGFIYLGRffNbI+od1UW+Vr8YPNyWS CeIw== X-Gm-Message-State: APjAAAWCwpcChuVvZ8X9xDSMvBOuGBnw6ErdWzxJvxn0V1yGJkVECX08 jd4VVmmng6JXtvGuiClX3tP3GKIH/H090F9vsvLU2cQ8Y6on X-Google-Smtp-Source: APXvYqzypj0cLkZAe6ywra+tvAN6+dxA3Nmkam8kTumR99hdy+/cb70Mef6MK220NE7gIEXRtPP046FqMRCL6SISXTyrEiM2xBLn MIME-Version: 1.0 X-Received: by 2002:a6b:8d87:: with SMTP id p129mr3674003iod.10.1553189400392; Thu, 21 Mar 2019 10:30:00 -0700 (PDT) Date: Thu, 21 Mar 2019 10:30:00 -0700 In-Reply-To: <0000000000009a01370582c6772a@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000007ab8ab05849e1647@google.com> Subject: Re: INFO: rcu detected stall in ext4_file_write_iter From: syzbot To: acme@kernel.org, adilger.kernel@dilger.ca, dvyukov@google.com, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Bisection is inconclusive: the bug happens on the oldest tested release. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17b1becf200000 start commit: [unknown git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=1471becf200000 console output: https://syzkaller.appspot.com/x/log.txt?x=1071becf200000 dashboard link: https://syzkaller.appspot.com/bug?extid=7d19c5fe6a3f1161abb7 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=103908f8c00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=105e5cd0c00000 For information about bisection process see: https://goo.gl/tpsmEJ#bisection