Re: [PATCH v4] printk: Add console owner and waiter logic to loadbalance console writes

[Tetsuo Handa]

Michal Hocko wrote:
> Hi,
> assuming that this passes warn stall torturing by Tetsuo, do you think
> we can drop http://lkml.kernel.org/r/1509017339-4802-1-git-send-email-penguin-kernel@xxxxxxxxxxxxxxxxxxx
> from the mmotm tree?

I don't think so.

The rule that "do not try to printk() faster than the kernel can write to
consoles" will remain no matter how printk() changes. Unless asynchronous
approach like https://lwn.net/Articles/723447/ is used, I think we can't
obtain useful information.