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=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 AC436C33CA0 for ; Tue, 19 Nov 2019 03:15:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F480219F6 for ; Tue, 19 Nov 2019 03:15:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="obijPTVf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727952AbfKSDPX (ORCPT ); Mon, 18 Nov 2019 22:15:23 -0500 Received: from mail-pg1-f176.google.com ([209.85.215.176]:47036 "EHLO mail-pg1-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727403AbfKSDPX (ORCPT ); Mon, 18 Nov 2019 22:15:23 -0500 Received: by mail-pg1-f176.google.com with SMTP id r18so10592862pgu.13 for ; Mon, 18 Nov 2019 19:15:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=bH6OLsChq8B4WKZCYOfbbfHHWXx5dkcLTpl8Z48ELMU=; b=obijPTVfPqbQjXb8wUyaih7dcb6kS+xNNWHqdnXMjVNeT1lcYOCBOpyxgxorkDBHvn 52yXfwMHEdrjKBQqD/PZpLZf89S6PrZF8AKptIXTtlkjVMwLRRwa/rB2wlILsWAZrmJU VqcGRPjmMU7IChjMma2IJNz7RsrozxK95g+XHnPhyi1qPT+D/RbOlahyxJ9g+6eNoDKQ APbpkdpBCxg52Ud5pnv/6IwqPJcEr/X4ZNk4IliqiSxFFjLhkuML1heqKWIztz0UYeq6 WepOivB5v6/3HSHNnc5M/LLE/HCZtlkFdR7SDsX3Lpz6x7YORZ0d2WK56btNP7gUHvpS L7Uw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=bH6OLsChq8B4WKZCYOfbbfHHWXx5dkcLTpl8Z48ELMU=; b=RUcD0/tHlI7JdzUqaM4WID5+E/AjCSUnj7YftgHqe2exbvn87YigNWHxkGWkpqx0wd ACOvqakTKV2ouHPgwsOluLu3m36LJjgRY2m3+qT+XTbtHj4roAup4FL4oPB6RADaW7uI 32MGWDXBeGvXjpa4YP6uVfZk87chuUqId1fL3iTbpU5wZMyDvz0HLHwpglgfjVRC2g14 QXgwLeto6Uu3kBaw01gQ5DzO9wznSCjlI7qBhPrffTAwmbpolStWwvfCgpsd0qF7MEri D0e1z6BF8HoXfhaB9gRDwSSgCtKeZeoUR6RVdbLk8P+pD9VK3mQ2VjpTpBinQkvroiPO WvFg== X-Gm-Message-State: APjAAAVQlMK3O1mur55ejU//5Ju14GEGjt0KYISL+wBtNFWDHdg6Rlym vfoIaLZpKyG164SFh++/9XcZSw== X-Google-Smtp-Source: APXvYqyiN/c0l7XM+isQKPQTt9x2vwfNw9PIhgFIu/fFIV1jIOFt0Uko/Pd18EjD1a52tcohw6pFSg== X-Received: by 2002:a63:f716:: with SMTP id x22mr2927463pgh.351.1574133322366; Mon, 18 Nov 2019 19:15:22 -0800 (PST) Received: from [192.168.1.188] ([66.219.217.79]) by smtp.gmail.com with ESMTPSA id 23sm21319175pgw.8.2019.11.18.19.15.15 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Nov 2019 19:15:21 -0800 (PST) Subject: Re: INFO: task hung in io_wq_destroy To: Eric Biggers Cc: syzbot , andriy.shevchenko@linux.intel.com, davem@davemloft.net, f.fainelli@gmail.com, gregkh@linuxfoundation.org, idosch@mellanox.com, kimbrownkd@gmail.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, petrm@mellanox.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, viro@zeniv.linux.org.uk, wanghai26@huawei.com, yuehaibing@huawei.com References: <000000000000f86a4f0595fdb152@google.com> <20191119022330.GC3147@sol.localdomain> From: Jens Axboe Message-ID: Date: Mon, 18 Nov 2019 20:15:13 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20191119022330.GC3147@sol.localdomain> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/18/19 7:23 PM, Eric Biggers wrote: > Hi Jens, > > On Mon, Oct 28, 2019 at 03:00:08PM -0600, Jens Axboe wrote: >> This is fixed in my for-next branch for a few days at least, unfortunately >> linux-next is still on the old one. Next version should be better. > > This is still occurring on linux-next. Here's a report on next-20191115 from > https://syzkaller.appspot.com/text?tag=CrashReport&x=16fa3d1ce00000 Hmm, I'll take a look. Looking at the reproducer, it's got a massive sleep at the end. I take it this triggers before that time actually passes? Because that's around 11.5 days of sleep. No luck reproducing this so far, I'll try on linux-next. -- Jens Axboe