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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9204CC4332F for ; Thu, 8 Dec 2022 18:33:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230007AbiLHSdd (ORCPT ); Thu, 8 Dec 2022 13:33:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48010 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229995AbiLHSdJ (ORCPT ); Thu, 8 Dec 2022 13:33:09 -0500 Received: from server.eikelenboom.it (server.eikelenboom.it [91.121.65.215]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 252707A199; Thu, 8 Dec 2022 10:31:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=eikelenboom.it; s=20180706; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=xh7NYgKqJIs6p/O05J4xYYF4pKK9kYdP7khjJXgOgSk=; b=F7fd1PyDPZxieCswJjDDZ9UCbv nF3RnxOIAWJRm0w4ju2cI30eMoaciQQ9bUN5Tu3wW1SP3oSEqMKWGyD673jHM2Nxa3zHg3+x7vy+t 46VY3PQjvgDB4euRFgOSr13UQ5ByKjXwwIsHGM1eliLUwALKifBOtlA4mPnGMCSfm04Y=; Received: from 131-195-250-62.ftth.glasoperator.nl ([62.250.195.131]:58874 helo=[172.16.1.50]) by server.eikelenboom.it with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from ) id 1p3LhV-0002BF-8r; Thu, 08 Dec 2022 19:32:53 +0100 Message-ID: Date: Thu, 8 Dec 2022 19:31:40 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.5.1 Subject: Re: Xen + linux 6.1.0-rc8, network to guest VM not working after commit ad7f402ae4f466647c3a669b8a6f3e5d4271c84a fixing XSA-423 To: Andrew Cooper , Ross Lagerwall , Juergen Gross , Xen-devel , Paul Durrant Cc: "linux-kernel@vger.kernel.org" , netdev References: <2f364567-3598-2d86-ae3d-e0fabad4704a@eikelenboom.it> <56054539-4a02-5310-b93f-6baacaf8e007@citrix.com> Content-Language: nl-NL, en-US From: Sander Eikelenboom In-Reply-To: <56054539-4a02-5310-b93f-6baacaf8e007@citrix.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/12/2022 00:00, Andrew Cooper wrote: > On 07/12/2022 21:42, Sander Eikelenboom wrote: >> Hi Ross / Juergen, >> >> I just updated my linux kernel to the latest of Linus his tree which >> included commit ad7f402ae4f466647c3a669b8a6f3e5d4271c84a fixing XSA-423. >> >> Unfortunately when using this kernel I can't SSH anymore into the Xen >> guest I start, but I don't see any apparent failures either. >> A straight revert of the commit >> ad7f402ae4f466647c3a669b8a6f3e5d4271c84a makes networking function >> normally again. >> >> I have added some of the logging below, perhaps it at gives some idea >> off the state around the Xen network front and backend. >> >> Any ideas or a test patch that I could run to shed some more light on >> what is going on ? > > XSA-423 was buggy.  Fix and discussion at: > > https://lore.kernel.org/xen-devel/681773dd-6264-63ac-a3b5-a9182b9e0cc1@suse.com/T/#t > > ~Andrew Thanks for the pointer Andrew, that fix works for me as well! What a difference a few characters can make :) -- Sander