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