linux-kernel - Re: [PATCH 0/2] x86: Speed up ioremap operations

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Date:	Thu, 28 Aug 2014 08:48:25 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Mike Travis <travis@....com>, mingo@...hat.com, tglx@...utronix.de,
	hpa@...or.com, msalter@...hat.com, dyoung@...hat.com,
	riel@...hat.com, peterz@...radead.org, mgorman@...e.de,
	linux-kernel@...r.kernel.org, x86@...nel.org, linux-mm@...ck.org
Subject: Re: [PATCH 0/2] x86: Speed up ioremap operations


* Andrew Morton <akpm@...ux-foundation.org> wrote:

> On Wed, 27 Aug 2014 17:59:27 -0500 Mike Travis <travis@....com> wrote:
> 
> > 
> > We have a large university system in the UK that is experiencing
> > very long delays modprobing the driver for a specific I/O device.
> > The delay is from 8-10 minutes per device and there are 31 devices
> > in the system.  This 4 to 5 hour delay in starting up those I/O
> > devices is very much a burden on the customer.
> 
> That's nuts.

Agreed, and I'd suggest marking this for -stable, once it's all 
settled and tested.

Thanks,

	Ingo
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