linux-kernel - Re: Commit 722bc6b167 breaks booting on an 8TB system.

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Date:	Wed, 6 Jun 2012 05:46:34 -0500
From:	Robin Holt <holt@....com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Robin Holt <holt@....com>, Yinghai Lu <yinghai@...nel.org>,
	WANG Cong <xiyou.wangcong@...il.com>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: Commit 722bc6b167 breaks booting on an 8TB system.

On Wed, Jun 06, 2012 at 11:51:02AM +0200, Ingo Molnar wrote:
> 
> * Robin Holt <holt@....com> wrote:
> 
> > > With just that patch, no improvement.
> > > 
> > > Sorry about the delay.  I got bumped from the machine yesterday.
> > > The next reservable time is tomorrow night, otherwise, the machine is
> > > booked solid for the next 36 hours.
> > 
> > Wait.  I was wrong.  I booted the wrong kernel.  With that 
> > patch applied, the machine does boot.
> 
> Great.
> 
> Could you guys please write a usable changelog for 
> only_need_recalculate_for_low.patch and send it to me with lkml 
> Cc:-ed, so that I can send the fix to Linus ASAP?

I also tested this on a separate 2TB system which had been experiencing
boot problems as well as a the original failing system configured as a
16TB system.  It worked on all systems tested so far.

Robin
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