Received: by 2002:a05:6a10:206:0:0:0:0 with SMTP id 6csp1400005pxj; Fri, 4 Jun 2021 13:25:58 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyi+XCtflVQVEeBq97xjs1CjwGR0ZzOleIySZhVqFkJIWznNIUcK5UHyEfu/vR51MplNzD4 X-Received: by 2002:a50:ee18:: with SMTP id g24mr6695232eds.11.1622838358523; Fri, 04 Jun 2021 13:25:58 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1622838358; cv=none; d=google.com; s=arc-20160816; b=e7qSjwCODpxcHYJ5QeFcouAsbrYDwEJbK3SfNkzaXoG13SANfSZPfmqK+9ELhLOMN1 L9iUEKTnK21rHOwCrLx6Mx40KjoS+8EChkjjr7/dHHlsGhR4CJDBy4Njzu3GWJpwxZ+7 vaojerqExXxICdzZupHdxUbqu6gkC5HPopFjup/9NFjCrYNALyl/KlO9PNo5ti1e15mj 4v7V2DzC199fbThwEZmYl1vKf65NwJjS758hrJENSMoSKr+6SS65hhj4jQ6XQMhaQIfC JL/GcAMMo307XZG2PR7KHCk0dWkYlnL/cPoBEUHv5v4sRBovJfJedoPlsZiEhuPWU2qx aLDQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:to:from:subject:message-id:in-reply-to:date :mime-version; bh=+xxvngmMWP3gbuJ8xYiXibZlDPYJsW3VK9hdC7qe+a8=; b=p2xOx8N7GLFKXViIPG4nWKtRt7zXV9kSPQJdSebKGEBGW9u6FgdBpSwhU3eCoYSHt5 roiXSGwAx4jYNS5dgLWoMse2+HH0btnKCN0t/SSdyfxgXflLGlkdK88G1EX2zdDlQhiK c46tBHdQUnli9/y/hdYQqJ39NmNp+DTK+RQXYjxmRTx74+TK4H4l3/QSNwNT2DjfFz6k 96laqfiXH5lG9dGzFpQhkrLDd1tluONfhH+iRVicFRA8Kr34HYZ+YL28Nox2DuaZNK4J XFInqVQiWcmgypIIsbXYAmqjoC8DNLChwwfk9LHQtuC51dqm1VPTNGqS/oT15ZoP+Bla VGhw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id c22si2296079ejj.526.2021.06.04.13.25.34; Fri, 04 Jun 2021 13:25:58 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230214AbhFDUXx (ORCPT + 99 others); Fri, 4 Jun 2021 16:23:53 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]:43964 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229854AbhFDUXx (ORCPT ); Fri, 4 Jun 2021 16:23:53 -0400 Received: by mail-il1-f197.google.com with SMTP id t16-20020a92d1500000b02901c521a389f7so7220398ilg.10 for ; Fri, 04 Jun 2021 13:22:06 -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=+xxvngmMWP3gbuJ8xYiXibZlDPYJsW3VK9hdC7qe+a8=; b=FhinoB7b0gEk7+YwhlAS5XkopiUTv26mQmObGWj4TNmnBo+l291jedO9Av0iibWMIX NooXllBeYQYgVU8i0E3D7awThjnpS5b17Kk0rB4Wd02zINAAEiQO1aWPs00ka7Z4X3c0 /xuEkAZXOqIJ0lvgKkLtFqnSjrL+VB4mMWqJltwlwJObMpLjd38PzTax8IwuEEV1oKrw /Y6QypzM2Ekg/DO7+CF000fx7+M1UT/9rI2f5NLbYMuJ7ZPxXyT9fDCOCIgK0MqKzTbr jv9eKJj9b9PUd+JY4X6+4nWLPTUySQFoR3QNF80s5juWGWZwLHQRbRelu64zIufuYmq5 dw4w== X-Gm-Message-State: AOAM530DCZEgn1htAOSzOqq0TZsfgp6YfKSicjZopXJpeUODZIODqaZT y/lELwD1iItrtW7BVYEU+FeAWrBGKCVuZHP3R5SPPQ7MFwZd MIME-Version: 1.0 X-Received: by 2002:a05:6e02:180d:: with SMTP id a13mr5252482ilv.49.1622838126303; Fri, 04 Jun 2021 13:22:06 -0700 (PDT) Date: Fri, 04 Jun 2021 13:22:06 -0700 In-Reply-To: <0000000000006e1be105c3ed13fe@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000bdfa905c3f6720f@google.com> Subject: Re: [syzbot] WARNING in io_wqe_enqueue From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit 24369c2e3bb06d8c4e71fd6ceaf4f8a01ae79b7c Author: Pavel Begunkov Date: Tue Jan 28 00:15:48 2020 +0000 io_uring: add io-wq workqueue sharing bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17934777d00000 start commit: f88cd3fb Merge tag 'vfio-v5.13-rc5' of git://github.com/aw.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=14534777d00000 console output: https://syzkaller.appspot.com/x/log.txt?x=10534777d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=82d85e75046e5e64 dashboard link: https://syzkaller.appspot.com/bug?extid=ea2f1484cffe5109dc10 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16d5772fd00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10525947d00000 Reported-by: syzbot+ea2f1484cffe5109dc10@syzkaller.appspotmail.com Fixes: 24369c2e3bb0 ("io_uring: add io-wq workqueue sharing") For information about bisection process see: https://goo.gl/tpsmEJ#bisection