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

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Message-ID: <CAE9FiQW_yBZZKsVt5Fy7QEqa7hBXhfbka4Ubh=oz4hDOzLQ0mg@mail.gmail.com>
Date:	Mon, 4 Jun 2012 16:51:19 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Robin Holt <holt@....com>
Cc:	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 Mon, Jun 4, 2012 at 3:07 AM, Robin Holt <holt@....com> wrote:
> On Sun, Jun 03, 2012 at 12:00:29AM -0700, Yinghai Lu wrote:
>> On Fri, Jun 1, 2012 at 8:54 AM, Robin Holt <holt@....com> wrote:
>> > I just tried to boot an 8TB system.  It fails very early in boot with:
>> >
>> > Kernel panic - not syncing: Cannot find space for the kernel page tables
>> >
>> >
>> > A git bisect lead me to commit 722bc6b16771ed80871e1fd81c86d3627dda2ac8.
>> >
>> > A git revert of that commit based on Linus' current as of a few hours ago
>> > (commit fb21aff) does boot past that point on the 8TB configuration.
>>
>> have some local patches. please check if they are helping...
>
> I will not have access to the machine until late tonight/early tomorrow
> (approximately 24 hours from now).  I will try to give the patches a
> run then.  Would you like them tested individually or as a set?

only_need_recalculate_for_low.patch

should be enough.

Thanks

Yinghai
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