Re: [PATCH 1/2] sched/debug: fix per-task line continuation for console

From: Peter Zijlstra
Date: Tue Mar 20 2018 - 04:09:08 EST


On Mon, Mar 19, 2018 at 04:43:28PM -0400, Joe Lawrence wrote:
> On 03/19/2018 04:17 PM, Peter Zijlstra wrote:

> I don't have the commit offhand that changed the printk behavior, but
> from observation:

4bcc595ccd80 ("printk: reinstate KERN_CONT for printing continuation lines")

and thereabout I think.

> > Does pr_cont("\n") DTRT? it seems like something weird.
> >
>
> Yeah, pr_cont() is kind of a hack. It will terminate a line if that's
> the first newline, but as demonstrated above, I don't think it likes
> extra newline chars.

Fair enough I suppose, just a bit weird.

> A better fix would be to marshal the text into temp buffer then dump it
> out. Dunno if you prefer that kind of churn for these stats.

Yeah, not worth it, simple is better here.