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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 67ADCC47423 for ; Tue, 29 Sep 2020 12:28:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 33F67216C4 for ; Tue, 29 Sep 2020 12:28:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732106AbgI2M2J (ORCPT ); Tue, 29 Sep 2020 08:28:09 -0400 Received: from mail-lj1-f193.google.com ([209.85.208.193]:33757 "EHLO mail-lj1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729748AbgI2M1s (ORCPT ); Tue, 29 Sep 2020 08:27:48 -0400 Received: by mail-lj1-f193.google.com with SMTP id k25so3864084ljk.0 for ; Tue, 29 Sep 2020 05:27:46 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:reply-to:to:cc:references:from:autocrypt:subject :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=5LpzM4vQoobc9kaCYMhDB7F4zI869dTRYnaefSpEwvU=; b=BmMH9T0J+yXMKKTZergo3eZ8NX6o2wDaSalLBr0gLLQIAnI3Ckrnxsw5xXbdoOFkj1 VAMpgBPh2ZpW5REMSRga0W9yytcxQ2ECZQDwxw2NvTlfFkxMlYaxhkJfNwwMXAH0GXt9 aY9BwDm/uzObZBwEpX4H7Q0kKeQMMafKLOJVQ9zEDR+7S71CJf3lc8uHS4B//wyT4lpW TpSYiH8XumPS2vfWU74cRuD21PnKWzKwpDlrXFQpEZSURxFuICRXI0odq8cWtyILE3K4 53O9AWs02X/izjS4anJF3/ebmcZ/+n4EXDekFFTUZJmZaxvIxGriFbgRzR4DVfRP+hZm pI9A== X-Gm-Message-State: AOAM530+9YCDEPutNRDJOuHcncuASk4KtoLur/2zpCJN7st8Ra5rsgL3 1KVjRG4C7zDL5pSYD6tMYkw= X-Google-Smtp-Source: ABdhPJzCrn356v9FzA3ljB34RJfimgF9EhAZtlLm1zG27/cSwulZvycvVthcrxnz8c0lGmK4rjbB4w== X-Received: by 2002:a2e:3a10:: with SMTP id h16mr1031044lja.193.1601382465482; Tue, 29 Sep 2020 05:27:45 -0700 (PDT) Received: from [10.68.32.147] (broadband-37-110-38-130.ip.moscow.rt.ru. [37.110.38.130]) by smtp.gmail.com with ESMTPSA id v10sm3226620lfq.196.2020.09.29.05.27.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 29 Sep 2020 05:27:44 -0700 (PDT) Reply-To: efremov@linux.com To: =?UTF-8?Q?Marek_Marczykowski-G=c3=b3recki?= , =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Cc: Jens Axboe , linux-block@vger.kernel.org, xen-devel , Roman Shaposhnik , Thomas Gleixner References: <20200927111405.GJ3962@mail-itl> <26fe7920-d6a8-fb8a-b97c-59565410eff4@suse.com> <20200928093654.GW1482@mail-itl> From: Denis Efremov Autocrypt: addr=efremov@linux.com; keydata= mQINBFsJUXwBEADDnzbOGE/X5ZdHqpK/kNmR7AY39b/rR+2Wm/VbQHV+jpGk8ZL07iOWnVe1 ZInSp3Ze+scB4ZK+y48z0YDvKUU3L85Nb31UASB2bgWIV+8tmW4kV8a2PosqIc4wp4/Qa2A/ Ip6q+bWurxOOjyJkfzt51p6Th4FTUsuoxINKRMjHrs/0y5oEc7Wt/1qk2ljmnSocg3fMxo8+ y6IxmXt5tYvt+FfBqx/1XwXuOSd0WOku+/jscYmBPwyrLdk/pMSnnld6a2Fp1zxWIKz+4VJm QEIlCTe5SO3h5sozpXeWS916VwwCuf8oov6706yC4MlmAqsQpBdoihQEA7zgh+pk10sCvviX FYM4gIcoMkKRex/NSqmeh3VmvQunEv6P+hNMKnIlZ2eJGQpz/ezwqNtV/przO95FSMOQxvQY 11TbyNxudW4FBx6K3fzKjw5dY2PrAUGfHbpI3wtVUNxSjcE6iaJHWUA+8R6FLnTXyEObRzTS fAjfiqcta+iLPdGGkYtmW1muy/v0juldH9uLfD9OfYODsWia2Ve79RB9cHSgRv4nZcGhQmP2 wFpLqskh+qlibhAAqT3RQLRsGabiTjzUkdzO1gaNlwufwqMXjZNkLYu1KpTNUegx3MNEi2p9 CmmDxWMBSMFofgrcy8PJ0jUnn9vWmtn3gz10FgTgqC7B3UvARQARAQABtCFEZW5pcyBFZnJl bW92IDxlZnJlbW92QGxpbnV4LmNvbT6JAlcEEwEIAEECGwMFCwkIBwIGFQoJCAsCBBYCAwEC HgECF4ACGQEWIQR2VAM2ApQN8ZIP5AO1IpWwM1AwHwUCXsQtuwUJB31DPwAKCRC1IpWwM1Aw H3dQD/9E/hFd2yPwWA5cJ5jmBeQt4lBi5wUXd2+9Y0mBIn40F17Xrjebo+D8E5y6S/wqfImW nSDYaMfIIljdjmUUanR9R7Cxd/Z548Qaa4F1AtB4XN3W1L49q21h942iu0yxSLZtq9ayeja6 flCB7a+gKjHMWFDB4nRi4gEJvZN897wdJp2tAtUfErXvvxR2/ymKsIf5L0FZBnIaGpqRbfgG Slu2RSpCkvxqlLaYGeYwGODs0QR7X2i70QGeEzznN1w1MGKLOFYw6lLeO8WPi05fHzpm5pK6 mTKkpZ53YsRfWL/HY3kLZPWm1cfAxa/rKvlhom+2V8cO4UoLYOzZLNW9HCFnNxo7zHoJ1shR gYcCq8XgiJBF6jfM2RZYkOAJd6E3mVUxctosNq6av3NOdsp1Au0CYdQ6Whi13azZ81pDlJQu Hdb0ZpDzysJKhORsf0Hr0PSlYKOdHuhl8fXKYOGQxpYrWpOnjrlEORl7NHILknXDfd8mccnf 4boKIZP7FbqSLw1RSaeoCnqH4/b+ntsIGvY3oJjzbQVq7iEpIhIoQLxeklFl1xvJAOuSQwII I9S0MsOm1uoT/mwq+wCYux4wQhALxSote/EcoUxK7DIW9ra4fCCo0bzaX7XJ+dJXBWb0Ixxm yLl39M+7gnhvZyU+wkTYERp1qBe9ngjd0QTZNVi7MbkCDQRbCVF8ARAA3ITFo8OvvzQJT2cY nPR718Npm+UL6uckm0Jr0IAFdstRZ3ZLW/R9e24nfF3A8Qga3VxJdhdEOzZKBbl1nadZ9kKU nq87te0eBJu+EbcuMv6+njT4CBdwCzJnBZ7ApFpvM8CxIUyFAvaz4EZZxkfEpxaPAivR1Sa2 2x7OMWH/78laB6KsPgwxV7fir45VjQEyJZ5ac5ydG9xndFmb76upD7HhV7fnygwf/uIPOzNZ YVElGVnqTBqisFRWg9w3Bqvqb/W6prJsoh7F0/THzCzp6PwbAnXDedN388RIuHtXJ+wTsPA0 oL0H4jQ+4XuAWvghD/+RXJI5wcsAHx7QkDcbTddrhhGdGcd06qbXe2hNVgdCtaoAgpCEetW8 /a8H+lEBBD4/iD2La39sfE+dt100cKgUP9MukDvOF2fT6GimdQ8TeEd1+RjYyG9SEJpVIxj6 H3CyGjFwtIwodfediU/ygmYfKXJIDmVpVQi598apSoWYT/ltv+NXTALjyNIVvh5cLRz8YxoF sFI2VpZ5PMrr1qo+DB1AbH00b0l2W7HGetSH8gcgpc7q3kCObmDSa3aTGTkawNHzbceEJrL6 mRD6GbjU4GPD06/dTRIhQatKgE4ekv5wnxBK6v9CVKViqpn7vIxiTI9/VtTKndzdnKE6C72+ jTwSYVa1vMxJABtOSg8AEQEAAYkCPAQYAQgAJgIbDBYhBHZUAzYClA3xkg/kA7UilbAzUDAf BQJexC4MBQkHfUOQAAoJELUilbAzUDAfPYoQAJdBGd9WZIid10FCoI30QXA82SHmxWe0Xy7h r4bbZobDPc7GbTHeDIYmUF24jI15NZ/Xy9ADAL0TpEg3fNVad2eslhCwiQViWfKOGOLLMe7v zod9dwxYdGXnNRlW+YOCdFNVPMvPDr08zgzXaZ2+QJjp44HSyzxgONmHAroFcqCFUlfAqUDO T30gV5bQ8BHqvfWyEhJT+CS3JJyP8BmmSgPa0Adlp6Do+pRsOO1YNNO78SYABhMi3fEa7X37 WxL31TrNCPnIauTgZtf/KCFQJpKaakC3ffEkPhyTjEl7oOE9xccNjccZraadi+2uHV0ULA1m ycHhb817A03n1I00QwLf2wOkckdqTqRbFFI/ik69hF9hemK/BmAHpShI+z1JsYT9cSs8D7wb aF/jQVy4URensgAPkgXsRiboqOj/rTz9F5mpd/gPU/IOUPFEMoo4TInt/+dEVECHioU3RRrW EahrGMfRngbdp/mKs9aBR56ECMfFFUPyI3VJsNbgpcIJjV/0N+JdJKQpJ/4uQ2zNm0wH/RU8 CRJvEwtKemX6fp/zLI36Gvz8zJIjSBIEqCb7vdgvWarksrhmi6/Jay5zRZ03+k6YwiqgX8t7 ANwvYa1h1dQ36OiTqm1cIxRCGl4wrypOVGx3OjCar7sBLD+NkwO4RaqFvdv0xuuy4x01VnOF Subject: Re: Kernel panic on 'floppy' module load, Xen HVM, since 4.19.143 Message-ID: Date: Tue, 29 Sep 2020 15:27:43 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20200928093654.GW1482@mail-itl> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hi, On 9/28/20 12:36 PM, Marek Marczykowski-Górecki wrote: > On Mon, Sep 28, 2020 at 07:02:19AM +0200, Jürgen Groß wrote: >> On 27.09.20 13:14, Marek Marczykowski-Górecki wrote: >>> Hi all, >>> >>> I get kernel panic on 'floppy' module load. If I blacklist the module, >>> then everything works. >>> The issue happens in Xen HVM, other virtualization modes (PV, PVH) works >>> fine. PV dom0 works too. I haven't tried bare metal, but I assume it >>> works fine too. >> >> Could you please try bare metal? > > I don't have any hw with floppy controller at hand... > Booting on what I have, it works, loading floppy just says -ENODEV. I saw that the issue was bisected [1] to commit c330fb1ddc0a ("XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.") I have hardware, but I've never worked with Xen. It will take me some time to set it up and reproduce the problem. I think I will do it in a week. [1] https://github.com/QubesOS/qubes-issues/issues/6074#issuecomment-699636351 Thanks, Denis