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 5914DC433EF for ; Mon, 10 Jan 2022 08:18:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240006AbiAJISS (ORCPT ); Mon, 10 Jan 2022 03:18:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60714 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231458AbiAJISQ (ORCPT ); Mon, 10 Jan 2022 03:18:16 -0500 X-Greylist: delayed 450 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Mon, 10 Jan 2022 00:18:15 PST Received: from mout-u-107.mailbox.org (mout-u-107.mailbox.org [IPv6:2001:67c:2050:1::465:107]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DDD03C06173F for ; Mon, 10 Jan 2022 00:18:15 -0800 (PST) Received: from smtp202.mailbox.org (unknown [91.198.250.118]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-u-107.mailbox.org (Postfix) with ESMTPS id 4JXRN16lvLzQjnW; Mon, 10 Jan 2022 09:10:41 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de Message-ID: <4264ac63-6072-5a43-2f5e-79d899cf0882@denx.de> Date: Mon, 10 Jan 2022 09:10:37 +0100 MIME-Version: 1.0 Subject: Re: "PCI/MSI: Mask MSI-X vectors only on success" (boot problem on c4.large) Content-Language: en-US To: Andrea Righi Cc: Thomas Gleixner , Bjorn Helgaas , Michal Simek , Marek Vasut , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org References: From: Stefan Roese In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andrea, On 1/7/22 18:32, Andrea Righi wrote: > I'm experiencing some boot problems on c4.large instances on AWS with > this commit applied (system stuck at boot - no oops or panic, just > stuck): > > 83dbf898a2d4 ("PCI/MSI: Mask MSI-X vectors only on success") > > If I revert this commit the boot completes correctly (found doing a > bisect). > > I'm using a 5.15.12 kernel. Let me know if there's anything I can do to > better track down the issue. For now I've just reverted the commit. Sorry, I don't have a good idea what might go wrong here. Perhaps Thomas has some thoughts on this? Thanks, Stefan