linux-kernel - Re: [PATCH 0/9] Add blockconsole version 1.1 (try 2)

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Message-ID: <s5hip4lp8mp.wl%tiwai@suse.de>
Date:	Thu, 21 Mar 2013 07:30:38 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Joern Engel <joern@...fs.org>, linux-kernel@...r.kernel.org,
	Jeff Moyer <jmoyer@...hat.com>
Subject: Re: [PATCH 0/9] Add blockconsole version 1.1 (try 2)

At Wed, 20 Mar 2013 23:52:31 +0100,
Borislav Petkov wrote:
> 
> Hi Andrew,
> 
> On Thu, Feb 28, 2013 at 04:39:53PM -0500, Joern Engel wrote:
> > Blockconsole is a console driver very roughly similar to netconsole.
> > Instead of sending messages out via UDP, they are written to a block
> > device.  Typically a USB stick is chosen, although in principle any
> > block device will do.
> > 
> > In most cases blockconsole is useful where netconsole is not, i.e.
> > single machines without network access or without an accessable
> > netconsole capture server.  When using both blockconsole and
> > netconsole, I have found netconsole to sometimes create a mess under
> > high message load (sysrq-t, etc.) while blockconsole does not.
> > 
> > Most importantly, a number of bugs were identified and fixed that
> > would have been unexplained machine reboots without blockconsole.
> > 
> > More highlights:
> > * reasonably small and self-contained code,
> > * some 100+ machine years of runtime,
> > * nice tutorial with a 30-sec guide for the impatient.
> 
> any thoughts on this?
> 
> Blockconsole is very useful in certain situations and a bunch of people
> are using it already and it would be nice if we could get it moving
> towards upstream.
> 
> So I'd appreciate it if you could take a look and maybe even pick it up
> if there are no serious issues with it.

FYI, blockconsole was already merged in linux-next tree.


Takashi
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