Re: Can printk() sleep at runtime?

[Linus Torvalds]

On Thu, May 31, 2018 at 5:05 AM Petr Mladek <pmladek@xxxxxxxx> wrote:
>
> Anyway, we need to fix or remove this format. vsprintf-like functions
> are called in any context and nobody expect that they might sleep.

Ack. I guess the argument is that "%pCr" is rare, and none of *those*
users may care, but I do think that doing things wrong as-is.

It's too subtle to have to know you're in a particular locking context
when you use a particular %p modifier.

                   Linus