linux-kernel - Re: [PATCH] panic: release stale console lock to always get the logbuf printed out

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Message-Id: <20151008135611.1f8deadff8690df168daaedc@linux-foundation.org>
Date:	Thu, 8 Oct 2015 13:56:11 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Vitaly Kuznetsov <vkuznets@...hat.com>
Cc:	Jan Kara <jack@...e.cz>,
	HATAYAMA Daisuke <d.hatayama@...fujitsu.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Jiri Kosina <jkosina@...e.cz>, Baoquan He <bhe@...hat.com>,
	Prarit Bhargava <prarit@...hat.com>,
	Xie XiuQi <xiexiuqi@...wei.com>,
	Seth Jennings <sjenning@...hat.com>,
	linux-kernel@...r.kernel.org,
	"K. Y. Srinivasan" <kys@...rosoft.com>
Subject: Re: [PATCH] panic: release stale console lock to always get the
 logbuf printed out

On Thu, 08 Oct 2015 12:03:25 +0200 Vitaly Kuznetsov <vkuznets@...hat.com> wrote:

> > If we picked up patch "kernel: Avoid softlockups in
> > stop_machine() during heavy printing" from my series (it's completely
> > independent, I've attached the latest version), the result would look less
> > hacky to me (attached). Thoughts?
> 
> Haven't tested it but should also work...

Well, I expect we'll be merging Jan's lockup-avoidance code fairly
soon.  There's no point in solving the same problem twice.

Sp please, do take a closer look at the proposed patches and if
possible, runtime test them?

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