Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108

[Mathieu Desnoyers]

Hi,

* Alan Cox (alan@xxxxxxxxxxxxxxxxxxx) wrote:
> In addition ideally we want a mechanism that is also sufficient that
> printk can be mangled into so that you can pull all the printk text
> strings _out_ of the kernel and into the debug traces for embedded work.
> 
> [ie you want printk("Oh dear %s exploded.\n", foo->bar); to end up with
> "Oh dear %s exploded.\n" out of kernel and in kernel
> 
> 		tracepoint_printk(foo->bar);
> 

Good idea, trivial to implement on top of LTTng. When seeing printk's reentrancy
limitations, I have though about doing it a couple of times.

Mathieu

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