From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754790AbdL1VbV (ORCPT ); Thu, 28 Dec 2017 16:31:21 -0500 Received: from Galois.linutronix.de ([146.0.238.70]:33335 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751199AbdL1VbT (ORCPT ); Thu, 28 Dec 2017 16:31:19 -0500 Date: Thu, 28 Dec 2017 22:31:08 +0100 (CET) From: Thomas Gleixner To: Andy Shevchenko cc: "alan@linux.intel.com" , "Ailus, Sakari" , "linux-kernel@vger.kernel.org" , "linux-media@vger.kernel.org" Subject: Re: IRQ behaivour has been changed from v4.14 to v4.15-rc1 In-Reply-To: <1514495025.7000.484.camel@linux.intel.com> Message-ID: References: <1514481444.7000.451.camel@intel.com> <1514482448.7000.460.camel@linux.intel.com> <1514489471.7000.463.camel@linux.intel.com> <1514495025.7000.484.camel@linux.intel.com> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 28 Dec 2017, Andy Shevchenko wrote: > On Thu, 2017-12-28 at 21:18 +0100, Thomas Gleixner wrote: > > Yes, you missed the typo in the command line. It should be: > > > > 'trace_event=irq_vectors:* ftrace_dump_on_oops' > > Indeed. > > So, I had to disable LOCAL_TIMER_VECTOR, CALL_FUNCTION_VECTOR and > RESCHDULE_VECTOR tracing, otherwise I got a lot of spam and RCU stalls. Fair enough. > The result w/o above is (full log is available here https://pastebin.com > /J5yaTbM9): Ok. Which irqs are related to that ISP thingy? Are these interrupts MSI? Thanks, tglx