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| author |   Thomas Tai <thomas.tai@oracle.com> | 2018-05-08 19:04:56 -0400 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2018-05-10 08:34:52 -0500 |
| commit | 2af8641b2ad3c0faf1ba63e989ca2f2f2134e10d (patch) | |
| tree | cefca5626022c7c7e4c013012acde9abb96d135e /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | PCI/AER: Unify error bit printing for native and CPER reporting (diff) | |
| download | linux-dev-2af8641b2ad3c0faf1ba63e989ca2f2f2134e10d.tar.xz linux-dev-2af8641b2ad3c0faf1ba63e989ca2f2f2134e10d.zip | |
PCI/AER: Add TLP header information to tracepoint
When a PCIe AER error 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>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions