On (03/07/19 09:17), John Ogness wrote:
> > If the serial console is a really slow one and we have a CPU in atomic
> > context spinnig on prb_lock, while the prb_lock is always acquired by
> > other CPUs, then it may look like a lock-up scenario.
>
> When the console is constantly printing messages, I wouldn't say that
> looks like a lock-up scenario. It looks like the system is busy printing
> critical information to the console (which it is).
What if we have N tasks/CPUs calling printk() simultaneously?
-ss
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