From: "H. Peter Anvin" <hpa@zytor.com>
To: Nathan Zimmer <nzimmer@sgi.com>
Cc: linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org,
matt.fleming@intel.com, tglx@linutronix.de, mingo@redhat.com
Subject: Re: BUG: unable to handle kernel paging request at 000000effd870020
Date: Wed, 02 Jan 2013 10:04:50 -0800 [thread overview]
Message-ID: <50E476C2.7060300@zytor.com> (raw)
In-Reply-To: <20130102172107.GA26761@gulag1.americas.sgi.com>
On 01/02/2013 09:21 AM, Nathan Zimmer wrote:
> I am getting an early boot problem. It only happens on the larger of the
> machines I haven't seen it crop up on machines with more then 512 GB of ram.
> It shows in the latest linus kernel too.
>
> I am (wildly) guessing that what is happening is that the new_memmap that is
> being passed to bios is somehow placed incorrectly.
> I have come up with a workaround. By placing it the DMA area the issue goes
> away but that doesn't seem like a real fix.
>
What does your memory map look like?
-hpa
next prev parent reply other threads:[~2013-01-02 18:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-02 17:21 BUG: unable to handle kernel paging request at 000000effd870020 Nathan Zimmer
2013-01-02 18:04 ` H. Peter Anvin [this message]
2013-01-02 19:13 ` Nathan Zimmer
2013-01-02 21:09 ` Robin Holt
2013-01-03 15:50 ` Matt Fleming
2013-01-03 22:07 ` Nathan Zimmer
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