From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934689AbeEIMiT (ORCPT ); Wed, 9 May 2018 08:38:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:37956 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932875AbeEIMiR (ORCPT ); Wed, 9 May 2018 08:38:17 -0400 Date: Wed, 9 May 2018 08:38:14 -0400 From: Steven Rostedt To: Thomas Tai Cc: bhelgaas@google.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, mr.nuke.me@gmail.com Subject: Re: [PATCH V3 1/1] PCI/AER: add pcie TLP header information in the tracepoint Message-ID: <20180509083814.149e8d8f@gandalf.local.home> In-Reply-To: <1525820696-31967-2-git-send-email-thomas.tai@oracle.com> References: <1525820696-31967-1-git-send-email-thomas.tai@oracle.com> <1525820696-31967-2-git-send-email-thomas.tai@oracle.com> X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 8 May 2018 19:04:56 -0400 Thomas Tai wrote: > When a PCIe AER occurs, the TLP header information is > printed in the kernel message but it is missing from > the tracepoint. A userspace program can use this information > in the tracepoint to better analyze problems. > > To enable the tracepoint: > echo 1 > /sys/kernel/debug/tracing/events/ras/aer_event/enable > > Example tracepoint output: > cat /sys/kernel/debug/tracing/trace > aer_event: 0000:01:00.0 > PCIe Bus Error: severity=Uncorrected, non-fatal, Completer Abort > TLP Header={0x0,0x1,0x2,0x3} > > Signed-off-by: Thomas Tai > --- Reviewed-by: Steven Rostedt (VMware) -- Steve