How can I send dmesg printout to ftrace subsystem?

Question

How can I send dmesg printout to ftrace subsystem?

I like correlate the dmesg msg with the functions call graph in ftrace.

Thanks

score 2 · Accepted Answer · answered Aug 21 '19 at 18:50

2

Found it:

cd /sys/kernel/debug/
echo 1 > events/printk/enable

answered Aug 21 '19 at 18:50

tony-p-lee

1 Answers1