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=ham 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 A6104C433ED for ; Sun, 18 Apr 2021 10:39:46 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3B3856134F for ; Sun, 18 Apr 2021 10:39:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B3856134F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ilande.co.uk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:37898 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lY4q9-0003tG-21 for qemu-devel@archiver.kernel.org; Sun, 18 Apr 2021 06:39:45 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52078) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lY4or-0003IV-53 for qemu-devel@nongnu.org; Sun, 18 Apr 2021 06:38:25 -0400 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]:51894 helo=mail.default.ilande.uk0.bigv.io) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lY4ol-0008Lg-R2 for qemu-devel@nongnu.org; Sun, 18 Apr 2021 06:38:24 -0400 Received: from host86-132-83-131.range86-132.btcentralplus.com ([86.132.83.131] helo=[192.168.1.110]) by mail.default.ilande.uk0.bigv.io with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.92) (envelope-from ) id 1lY4ow-0007L3-1o; Sun, 18 Apr 2021 11:38:35 +0100 To: Peter Maydell References: From: Mark Cave-Ayland Message-ID: Date: Sun, 18 Apr 2021 11:38:09 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.9.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 86.132.83.131 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: Re: any remaining for-6.0 issues? X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.default.ilande.uk0.bigv.io) Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.default.ilande.uk0.bigv.io X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, NICE_REPLY_A=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Thomas Huth , =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , Cornelia Huck , Richard Henderson , QEMU Developers , =?UTF-8?Q?Alex_Benn=c3=a9e?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 17/04/2021 20:46, Peter Maydell wrote: >> On 14/04/2021 13:48, Thomas Huth wrote: >>> I've seen some intermittend, non-reproducible crashes with usermode QEMU in some of >>> my CI runs, e.g.: >>> >>> https://gitlab.com/thuth/qemu/-/jobs/1178256498#L3876 >>> >>> https://gitlab.com/thuth/qemu/-/jobs/1146276208#L3241 >>> >>> This was only with ccache enabled, so I thought that it might be related to my >>> work-in-progress ccache patches... >>> >>> ... but now Cornelia reported that she has seen such a crash in one of her branches, >>> too (which is completely unrelated to my ccache patches): >>> >>> https://gitlab.com/cohuck/qemu/-/jobs/1178860927#L3867 >>> >>> That makes me wonder whether we currently have a real problem with user-mode in the >>> master branch? Did anybody else see such problems? >> >> I've definitely seen the same issue as Cornelia in my Gitlab CI builds for the ESP >> security fixes (first version of which appeared just before rc0). The user builds >> always fail on "run-tcg-tests-s390x-linux-user" for me. > > Do we have any better understanding yet of the cause here? > (I ask because I think we're going to need an rc4 for other reasons, > so if there's a ready-to-go fix then we could consider it.) I don't think so. I tried a run with a possible candidate patch reverted (see https://lists.gnu.org/archive/html/qemu-devel/2021-04/msg02345.html) but Cornelia's response indicates that the result is still inconclusive :( ATB, Mark.