Re: [PATCH V3 1/1] PCI/AER: add pcie TLP header information in the tracepoint

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On 2018-05-09 08:38 AM, Steven Rostedt wrote:
On Tue,  8 May 2018 19:04:56 -0400
Thomas Tai <thomas.tai@xxxxxxxxxx> 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@xxxxxxxxxx>
---

Reviewed-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>

Thank you very much Steven.

-Thomas


-- Steve




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