tracing: add trace event for memory-failure
RAS user space tools like rasdaemon which base on trace event, could
receive mce error event, but no memory recovery result event. So, I want
to add this event to make this scenario complete.
This patch add a event at ras group for memory-failure.
The output like below:
# tracer: nop
#
# entries-in-buffer/entries-written: 2/2 #P:24
#
# _-----=> irqs-off
# / _----=> need-resched
# | / _---=> hardirq/softirq
# || / _--=> preempt-depth
# ||| / delay
# TASK-PID CPU# |||| TIMESTAMP FUNCTION
# | | | |||| | |
mce-inject-13150 [001] .... 277.019359: memory_failure_event: pfn 0x19869: recovery action for free buddy page: Delayed
[[email protected]: fix build error]
Signed-off-by: Xie XiuQi <[email protected]>
Reviewed-by: Naoya Horiguchi <[email protected]>
Acked-by: Steven Rostedt <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Chen Gong <[email protected]>
Cc: Jim Davis <[email protected]>
Signed-off-by: Xie XiuQi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
3 files changed
