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 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5B0B9C433EF for ; Sat, 25 Dec 2021 18:07:41 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.251777.432847 (Exim 4.92) (envelope-from ) id 1n1BRm-0007mT-RX; Sat, 25 Dec 2021 18:07:10 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 251777.432847; Sat, 25 Dec 2021 18:07:10 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1n1BRm-0007mM-Nj; Sat, 25 Dec 2021 18:07:10 +0000 Received: by outflank-mailman (input) for mailman id 251777; Sat, 25 Dec 2021 18:07:09 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1n1BRl-0007mG-Lo for xen-devel@lists.xen.org; Sat, 25 Dec 2021 18:07:09 +0000 Received: from mail-il1-f180.google.com (mail-il1-f180.google.com [209.85.166.180]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 78be14a3-65ad-11ec-9e60-abaf8a552007; Sat, 25 Dec 2021 19:07:08 +0100 (CET) Received: by mail-il1-f180.google.com with SMTP id y16so8832599ilq.8 for ; Sat, 25 Dec 2021 10:07:07 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 78be14a3-65ad-11ec-9e60-abaf8a552007 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=rj5bw5Fvs3Zezd4r+FVV2J+bmd2uBeaFMey7QaPzfL8=; b=yhJvT4tsuxkodReprhC7liHqNV+iuOdwC581h8UhJ8MaBRJVY4YzS+7wPqClix3/hd MX+x3ZOtDD5Y0+bq5bCEoyLLcbzgBzyBPc1n79h26jjOVsUjZ6NxxljQbO9RVm3vgt0u Hl12ipDlk9BfTk0G7fKZMBpKEaPDQsFKa9H8AGnY5SWR3FNfBUmwdKR8Fq7qBZBLRmb7 vropPoHqtH/ySheSxD+t/EdYVGKmTKBz09Rdrze1IdFmthwSTzBSrV/GXlN5tFwMxm3n l/1VXKFH3fYZTmg8GDr0uuCmbuFbVrNp0wrJSaGO/RR/gLeE57B+5r/JHHUfNcFVq/AI Fkyg== X-Gm-Message-State: AOAM532V0FTWMgMDRKp3PO+AzMiCZh6lveVG781etXVi2fse7XsYMA8p LpXCiIwiviRtvfstyDmFwN7cc2S08TR3JqaaLf8= X-Google-Smtp-Source: ABdhPJybD0l/SDAy35f5XcSQfr4j0iStDl87V+y7k+EfbCC9pjtUxh5sijiv4OA+a7PJTuFeCWoUdIR+RDCQfRp/0AU= X-Received: by 2002:a92:c10e:: with SMTP id p14mr4719204ile.24.1640455626680; Sat, 25 Dec 2021 10:07:06 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: "G.R." Date: Sun, 26 Dec 2021 02:06:55 +0800 Message-ID: Subject: Re: Possible bug? DOM-U network stopped working after fatal error reported in DOM0 To: =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= Cc: xen-devel Content-Type: text/plain; charset="UTF-8" > > Thanks. I've raised this on freensd-net for advice [0]. IMO netfront > > shouldn't receive an mbuf that crosses a page boundary, but if that's > > indeed a legit mbuf I will figure out the best way to handle it. > > > > I have a clumsy patch (below) that might solve this, if you want to > > give it a try. > > Applied the patch and it worked like a charm! > Thank you so much for your quick help! > Wish you a wonderful holiday! I may have said too quickly... With the patch I can attach the iscsi disk and neither the dom0 nor the NAS domU complains this time. But when I attempt to mount the attached disk it reports I/O errors randomly. By randomly I mean different disks behave differently... I don't see any error logs from kernels this time. (most of the iscsi disks are NTFS FS and mounted through the user mode fuse library) But since I have a local backup copy of the image, I can confirm that mounting that backup image does not result in any I/O error. Looks like something is still broken here...