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From: Pierre Ossman <drzeus-list@drzeus.cx>
To: Olaf Hering <olaf@aepfle.de>
Cc: Andrew Morton <akpm@osdl.org>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Make prepare_namespace() wait for devices
Date: Thu, 24 May 2007 22:46:48 +0200	[thread overview]
Message-ID: <4655F9B8.8080703@drzeus.cx> (raw)
In-Reply-To: <20070524183509.GA30518@aepfle.de>

Olaf Hering wrote:
> On Thu, May 24, Pierre Ossman wrote:
>
>   
>> init: wait for asynchronously scanned block devices
>>     
>
> init/do_mounts.c:242:__setup("rootdelay=", root_delay_setup);
>
> Why does that not work for you and how does your patch fix it?
>   

The problem isn't really mine, I just got the ball when it came to
fixing it. :)

The problem with rootdelay= is that it's a hammer when the problem
requires a screw driver. In order to get reliability, you need to whack
it hard and give it a long delay. But that has the unpleasant side
effect of having the boot taking way much more time than it really needs.

The original thread is here:

http://marc.info/?t=117879392100022&r=1&w=2

At the end of that thread I suggest a more universal approach, which I
submitted for comments here:

http://marc.info/?t=117914570700004&r=1&w=2

I believe this is a more clean approach than forcing all subsystems to
be synchronous.

Rgds

-- 
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  PulseAudio, core developer          http://pulseaudio.org
  rdesktop, core developer          http://www.rdesktop.org


  reply	other threads:[~2007-05-24 20:46 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-24 12:21 [PATCH] Make prepare_namespace() wait for devices Pierre Ossman
2007-05-24 18:35 ` Olaf Hering
2007-05-24 20:46   ` Pierre Ossman [this message]
2007-05-25  0:06 ` Andrew Morton
2007-05-25  4:03   ` Pierre Ossman
2007-05-25  4:17     ` Andrew Morton
2007-05-25  4:31       ` Pierre Ossman
2007-05-31 11:20         ` Pierre Ossman
2007-05-31 15:51           ` Andrew Morton
2007-06-01  5:24             ` Pierre Ossman
2007-06-01  6:40               ` Andrew Morton
2007-06-01  6:51                 ` Pierre Ossman

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