mirror of https://gitee.com/openkylin/linux.git
2af8641b2a
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>
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|---|---|---|
| .. | ||
| aer | ||
| Kconfig | ||
| Makefile | ||
| aspm.c | ||
| dpc.c | ||
| pme.c | ||
| portdrv.h | ||
| portdrv_acpi.c | ||
| portdrv_core.c | ||
| portdrv_pci.c | ||
| ptm.c | ||