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 5D56EEB64D9 for ; Wed, 14 Jun 2023 13:10:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244832AbjFNNKZ (ORCPT ); Wed, 14 Jun 2023 09:10:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59724 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244455AbjFNNKS (ORCPT ); Wed, 14 Jun 2023 09:10:18 -0400 Received: from smtp-fw-80009.amazon.com (smtp-fw-80009.amazon.com [99.78.197.220]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ADA671BE8; Wed, 14 Jun 2023 06:10:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1686748217; x=1718284217; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=IaVCMsTsgBXgcxaR6Mk8JuSrSs/kMPQ7cemUYFW/TgY=; b=VF/LLFRRq6cb3E30vLf5LChBVBa/dmIFe462b1KsOkqiVA9CkGyhR/6V fody9NOkWePdlDn05e6yqEFmTxndg239vxrtAGYamm2RCYdt5l1IDSToH R6iZWnEcC9b86UYEL3VhPYZGKgq6M7ZRAAFAD08VthwudGwpReFpwef4n A=; X-IronPort-AV: E=Sophos;i="6.00,242,1681171200"; d="scan'208";a="10081887" Received: from pdx4-co-svc-p1-lb2-vlan3.amazon.com (HELO email-inbound-relay-iad-1a-m6i4x-b5bd57cf.us-east-1.amazon.com) ([10.25.36.214]) by smtp-border-fw-80009.pdx80.corp.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jun 2023 13:10:15 +0000 Received: from EX19MTAUEC002.ant.amazon.com (iad12-ws-svc-p26-lb9-vlan3.iad.amazon.com [10.40.163.38]) by email-inbound-relay-iad-1a-m6i4x-b5bd57cf.us-east-1.amazon.com (Postfix) with ESMTPS id 3461D4679E; Wed, 14 Jun 2023 13:10:12 +0000 (UTC) Received: from EX19D028UEC003.ant.amazon.com (10.252.137.159) by EX19MTAUEC002.ant.amazon.com (10.252.135.253) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Wed, 14 Jun 2023 13:10:12 +0000 Received: from [10.95.176.26] (10.95.176.26) by EX19D028UEC003.ant.amazon.com (10.252.137.159) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Wed, 14 Jun 2023 13:10:10 +0000 Message-ID: <4c4178a1-1050-ced4-e6fb-f95c3bdefc98@amazon.com> Date: Wed, 14 Jun 2023 09:10:08 -0400 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.2 Subject: Re: Observing RCU stalls in kernel 5.4/5.10/5.15/6.1 stable trees Content-Language: en-US To: Sebastian Andrzej Siewior , "gregkh@linuxfoundation.org" CC: "Bhatnagar, Rishabh" , "linux-kernel@vger.kernel.org" , "tglx@linutronix.de" , "sashal@kernel.org" , , "stable@vger.kernel.org" References: <12c6f9a3-d087-b824-0d05-0d18c9bc1bf3@amazon.com> <2023061428-compacter-economic-b648@gregkh> <20230614092045.tNY8USjq@linutronix.de> From: Luiz Capitulino In-Reply-To: <20230614092045.tNY8USjq@linutronix.de> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.95.176.26] X-ClientProxiedBy: EX19D044UWA004.ant.amazon.com (10.13.139.7) To EX19D028UEC003.ant.amazon.com (10.252.137.159) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2023-06-14 05:20, Sebastian Andrzej Siewior wrote: > > > On 2023-06-14 11:14:49 [+0200], gregkh@linuxfoundation.org wrote: >> Oops, missed this. >> >> Yes, there might be, can you do 'git bisect' and track down the patch >> that fixed this? > > There was a report of a lockup during boot in VMs yesterday. If I > remember correctly this still exists and might be related to this > report. I'm going to have a look. Thanks, Sebastian. Do you have a link for the discussion? - Luiz