From: Florian Boelstler <euphoria@arcor.de>
To: linux-rt-users@vger.kernel.org
Subject: Re: 2.6.26.8-rt16 powerpc and mem=...
Date: Wed, 18 Feb 2009 17:13:43 +0100 [thread overview]
Message-ID: <gnhc3n$1jo$1@ger.gmane.org> (raw)
In-Reply-To: <gngsin$50r$1@ger.gmane.org>
Hi again,
I adapted the kernel to allow a four-level CAM mapping.
If the memory is reduced to 448M (i.e. result is CAM0=256Mb, CAM1=64Mb,
CAM2=64Mb CAM3=64Mb residual: 0Mb) there will be no highmem assigned by
the kernel at all.
In that case the U-Boot boot loader is set to initrd_high=0x1C000000,
i.e. it will put the initrd right at the "upper end" of available memory.
linux-rt doesn't fail to mount the initrd.
I tend to believe that the issue is related to the use of highmem in
linux-rt (OK, pretty vague:).
Florian
prev parent reply other threads:[~2009-02-18 16:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-17 17:46 2.6.26.8-rt16 powerpc and mem= Florian Boelstler
2009-02-17 17:54 ` Florian Boelstler
2009-02-18 11:48 ` Florian Boelstler
2009-02-18 16:13 ` Florian Boelstler [this message]
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