From: Steven Rostedt <rostedt@goodmis.org>
To: Thomas Tai <thomas.tai@oracle.com>
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
Date: Wed, 9 May 2018 08:38:14 -0400 [thread overview]
Message-ID: <20180509083814.149e8d8f@gandalf.local.home> (raw)
In-Reply-To: <1525820696-31967-2-git-send-email-thomas.tai@oracle.com>
On Tue, 8 May 2018 19:04:56 -0400
Thomas Tai <thomas.tai@oracle.com> 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 <thomas.tai@oracle.com>
> ---
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-- Steve
next prev parent reply other threads:[~2018-05-09 12:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-08 23:04 [PATCH V3 0/1] PCI/AER: add pcie TLP header information in the tracepoint Thomas Tai
2018-05-08 23:04 ` [PATCH V3 1/1] " Thomas Tai
2018-05-09 12:38 ` Steven Rostedt [this message]
2018-05-09 14:12 ` Thomas Tai
2018-05-10 13:37 ` Bjorn Helgaas
2018-05-10 13:47 ` Thomas Tai
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