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=-5.8 required=3.0 tests=BAYES_00, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=no 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 B0ECBC4338F for ; Fri, 6 Aug 2021 15:55:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 956D061165 for ; Fri, 6 Aug 2021 15:55:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244882AbhHFP4I (ORCPT ); Fri, 6 Aug 2021 11:56:08 -0400 Received: from pout.email.it ([77.93.251.230]:60134 "EHLO pout.email.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243362AbhHFP4H (ORCPT ); Fri, 6 Aug 2021 11:56:07 -0400 X-Greylist: delayed 604 seconds by postgrey-1.27 at vger.kernel.org; Fri, 06 Aug 2021 11:56:07 EDT Received: from localhost (localhost [127.0.0.1]) by pout.email.it (Postfix) with ESMTP id 00322CD171; Fri, 6 Aug 2021 17:45:45 +0200 (CEST) Received: from pout.email.it ([127.0.0.1]) by localhost (ir-mtaout02.email.it [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id Sdb3HtwtrqsH; Fri, 6 Aug 2021 17:45:43 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by pout.email.it (Postfix) with ESMTP id C970FCD178; Fri, 6 Aug 2021 17:45:43 +0200 (CEST) X-Virus-Scanned: amavisd-new at ir-mtaout02.email.it Received: from pout.email.it ([127.0.0.1]) by localhost (ir-mtaout02.email.it [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id USRKzVX4vKTy; Fri, 6 Aug 2021 17:45:43 +0200 (CEST) Received: from ir-zstore42.email.it (unknown [192.168.25.42]) by pout.email.it (Postfix) with ESMTP id 76745CD173; Fri, 6 Aug 2021 17:45:43 +0200 (CEST) Date: Fri, 6 Aug 2021 17:45:43 +0200 (CEST) From: blinkin@email.it To: Thomas Gleixner Cc: linux-kernel@vger.kernel.org Message-ID: <629765464.1655403.1628264743080.JavaMail.zimbra@email.it> Subject: Bug report for kernel v4.15-rc8+ MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [93.146.250.201] X-Mailer: Zimbra 8.8.15_GA_4059 (ZimbraWebClient - GC92 (Linux)/8.8.15_GA_4059) Thread-Index: NENq8cTB1VaI53n8f06VZiCziLFHzA== Thread-Topic: Bug report for kernel v4.15-rc8+ Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, I think I found a bug in kernel 4.15-rc8+. Git bisect tells me that the incriminating commit is https://github.com/openSUSE/kernel/commit/a0c9259dc4e1923a98356967ce8b732da1979df8. The bug doesn't seem widespread and it may be affecting only my hardware (Asuspro P2530UJ laptop). I also found a workaround (boot kernel parameters combination) thanks to your comments on this (seemingly unrelated) bugreport: https://bugzilla.kernel.org/show_bug.cgi?id=208097 I'm not sure where and how to report it, the kernel I used for the tests is built from the opensuse tree but it looks like an upstream bug. Can you give me pointers on how to proceed from here? I can provide informations about the symptoms, the hardware config and the workaround but I know nothing about CPU/IRQ management in the linux kernel. Thanks for your time