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Date: Thu, 22 Oct 2015 13:36:22 +0100
From: David Woodhouse <dwmw2@...radead.org>
To: Jan Kara <jack@...e.cz>
Cc: David Howells <dhowells@...hat.com>, linux-kernel@...r.kernel.org,
will.deacon@....com, rostedt@...dmis.org, pmladek@...e.cz
Subject: Re: [PATCH] printk: Don't discard earlier unprinted messages to
make space
On Thu, 2015-10-22 at 14:18 +0200, Jan Kara wrote:
>
> >
> > What happened to it? And how do we fix it?
>
> Hard to fix since you'd easily get RCU stalls and softlockup messages on
> systems with lots of CPUs and heavy printk traffic...
If we have to explicitly opt in to synchronous output, then such things
should be tolerable.
--
dwmw2
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