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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS 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 DD15AC43381 for ; Tue, 19 Feb 2019 15:53:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B63A821738 for ; Tue, 19 Feb 2019 15:53:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727889AbfBSPxp (ORCPT ); Tue, 19 Feb 2019 10:53:45 -0500 Received: from mail-ed1-f54.google.com ([209.85.208.54]:33322 "EHLO mail-ed1-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725820AbfBSPxo (ORCPT ); Tue, 19 Feb 2019 10:53:44 -0500 Received: by mail-ed1-f54.google.com with SMTP id a2so17204848edi.0 for ; Tue, 19 Feb 2019 07:53:44 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:subject:to:cc:message-id:date:user-agent :mime-version:content-language:content-transfer-encoding; bh=XO+WO6xE0sJpb69dFxFEH0+rH2yDa9nljVHwRisqqhU=; b=fGxCg4h0raDlGEF9NyAH6uVCNr8Hv46vZjSfPQbME3Zdj71Cv1OD+6TgkTtm6jIsD4 V3lPGcReoEDRvuakvpQm/IqRlZvUAZ4V/SXRshnpYKxyMrcUHGPiVoqJOYsDKXIEghW/ K3htjaUIvU1TLT3HZMX4x8bykLHFuNWUaf1VHQn9iIqYlpBqUWZEfItD6z7b69IT0TKV YCYI1lHxhoPidl1+7JmCiVyWpe43wB/9lmflV8mAQtHiTJH990MHUbDluJsVWqH5YxJZ Pp8lQu3UJBkK7bLnF4oENff2e/p/LO2lQQ+TIo6DUP1DaKC1+avtmIqp7Hg+4DMB+r+S +r5w== X-Gm-Message-State: AHQUAuZebNWO7wzY+yRsyGjAIEkzWDDgZWq9k4T+tIxRQANiD78FRCE6 Bg6gKyHqlXwRGvtRj+n9g0WakaVmhtc= X-Google-Smtp-Source: AHgI3IZqJEVrH/fjAIWY6IyOwZENsyUsLvc4ijeyJC9NSw6RE/Zr9B7SEW14lNoQoeGNkWp+j4FEbQ== X-Received: by 2002:a17:906:4a53:: with SMTP id a19mr20434551ejv.229.1550591622923; Tue, 19 Feb 2019 07:53:42 -0800 (PST) Received: from shalem.localdomain (546A5441.cm-12-3b.dynamic.ziggo.nl. [84.106.84.65]) by smtp.gmail.com with ESMTPSA id u49sm3033893edm.37.2019.02.19.07.53.41 (version=TLS1_3 cipher=AEAD-AES128-GCM-SHA256 bits=128/128); Tue, 19 Feb 2019 07:53:42 -0800 (PST) From: Hans de Goede Subject: False positive "do_IRQ: #.55 No irq handler for vector" messages on AMD ryzen based laptops To: Thomas Gleixner Cc: Linux Kernel Mailing List Message-ID: <95e76875-f6b2-cbea-cd74-dc14ee77b2f8@redhat.com> Date: Tue, 19 Feb 2019 16:53:41 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Thomas, Various people are reporting false positive "do_IRQ: #.55 No irq handler for vector" messages on AMD ryzen based laptops, see e.g.: https://bugzilla.redhat.com/show_bug.cgi?id=1551605 Which contains this dmesg snippet: Feb 07 20:14:29 localhost.localdomain kernel: smp: Bringing up secondary CPUs ... Feb 07 20:14:29 localhost.localdomain kernel: x86: Booting SMP configuration: Feb 07 20:14:29 localhost.localdomain kernel: .... node #0, CPUs: #1 Feb 07 20:14:29 localhost.localdomain kernel: do_IRQ: 1.55 No irq handler for vector Feb 07 20:14:29 localhost.localdomain kernel: #2 Feb 07 20:14:29 localhost.localdomain kernel: do_IRQ: 2.55 No irq handler for vector Feb 07 20:14:29 localhost.localdomain kernel: #3 Feb 07 20:14:29 localhost.localdomain kernel: do_IRQ: 3.55 No irq handler for vector Feb 07 20:14:29 localhost.localdomain kernel: smp: Brought up 1 node, 4 CPUs Feb 07 20:14:29 localhost.localdomain kernel: smpboot: Max logical packages: 1 Feb 07 20:14:29 localhost.localdomain kernel: smpboot: Total of 4 processors activated (15968.49 BogoMIPS) It seems that we get an IRQ for each CPU as we bring it online, which feels to me like it is some sorta false-positive. I temporarily have access to a loaner laptop for a couple of weeks which shows the same errors and I would like to fix this, but I don't really know how to fix this. Note if you want I can set up root ssh-access to the laptop. Regards, Hans