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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 66F37C4743E for ; Fri, 4 Jun 2021 20:22:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4B3F3613AE for ; Fri, 4 Jun 2021 20:22:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231235AbhFDUYE (ORCPT ); Fri, 4 Jun 2021 16:24:04 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:41715 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229854AbhFDUYD (ORCPT ); Fri, 4 Jun 2021 16:24:03 -0400 Received: by mail-io1-f71.google.com with SMTP id y26-20020a6be51a0000b02904b200a26422so1607224ioc.8 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=GRMdnbx+6QZFOgaKSk6ZnnnTBWDmjufF3Ok4YtdJROmFhLcCxVixZ91r9Mkq7JUIA+ zWxhdT4D5hybcq3FMU475TvtFPNHtysoVaX2ugVgTU1c1TWkeQYUcEV10idh2kwThaS+ Pv9B1jqMAa1MICHrbiTTQzi8sSOadKdkUp952MeDVZiMve1N8IB1gniT/1AdugL4W9AV vzSKB4gsRnrZOzhxpLD/ax2rGkOpJMlySM13XGmZ8V2Uq1Ro8uvNxobwEucBDj+4OisO ucd2vk7I2OvI7XaXyo0gg/KoWAtcYocd0QdJ9nLk7c5nazqwwgGrrXtuHotdAgVtFAff Neaw== X-Gm-Message-State: AOAM531s3KAf22VfyCcQPTq1Sr8KoajR3f6CdBhRwUY4HWT5jO05J7+W m8rGijW6j1abPy315v3Ly8DFKI6WD9iHHDN2+w+ZGl6Xo1me X-Google-Smtp-Source: ABdhPJzyMx6V7bTfOpHbF5j6qSQ3NurRK7PzKo/y6Yn1W5AIf3T3nQk5uStxE5Nc5MADreRIYv94FRDp13ary7gUcGxeVNo0AMwp 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-fsdevel@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