linux-kernel - Re: USB storage no-boot regression (bisected)

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Message-ID: <49E657BC.6000707@rtr.ca>
Date:	Wed, 15 Apr 2009 17:55:08 -0400
From:	Mark Lord <lkml@....ca>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Greg KH <greg@...ah.com>, Jeff Garzik <jeff@...zik.org>,
	Linux USB kernel mailing list <linux-usb@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	LKML <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: USB storage no-boot regression (bisected)

Arjan van de Ven wrote:
> On Wed, 15 Apr 2009 11:37:44 -0400
> Mark Lord <lkml@....ca> wrote:
> 
>> Arjan van de Ven wrote:
>>> On Wed, 15 Apr 2009 10:25:05 -0400
>>> Mark Lord <lkml@....ca> wrote:
..
>>>> Not forever, just a few seconds to compensate for the regression.
>>> seconds!!!!!
>>> The whole kernel boots in half a second!
>> ..
>>
>> Oh, absolutely I agree.
>>
>> That's why I'm not suggesting a DELAY
>> but rather a TIMEOUT (where it keeps trying up until the timeout).
> 
> This exists today. It's just not something Jeff chose to use ;)
> (because he didn't need to)
> 
>> For desktop, it should really just wait forever,
>> but I can understand situations (server room)
>> where that would be a Really Bad Idea.
> 
> it's called rootwait and such :)
..

No, that's not the same thing.
rootwait has no timeout -- it waits *forever*,
which will break auto-recovery on servers.

We just need it to wait/retry up to a timeout (parameter?).

Thanks
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