Re: a question about how to debug this case in ftrace

[John Ogness]

On 2024-06-26, Song Chen <chensong_2000@xxxxxx> wrote:
> ohh, by the way, i'm curious why softlockup/hardlockup/hungtask don't
> have ftrace dump as well as rcu stall, or is it possible to add a
> parameter in cmdline to redirect
> softlockup/hardlockup/hungtask/rcustall warning either to ftrace or
> printk.

Are you aware of the printk:console ftrace event? If you enable it, all
printk output also goes into the ftrace buffers.

John Ogness