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Date: Tue, 8 Jul 2003 01:36:56 +0100
From: Jamie Lokier <jamie@shareable.org>
To: "Richard B. Johnson" <root@chaos.analogic.com>
Cc: Linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: syscall __NR_mmap2
Message-ID: <20030708003656.GC12127@mail.jlokier.co.uk>
References: <Pine.LNX.4.53.0307071655470.22074@chaos>
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Richard B. Johnson wrote:
> mmap2(0xb8000, 8192, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0xb8000) = 0xb8000

You meant to write:

	mmap2(0xb8000, 8192, PROT_READ|PROT_WRITE,
	      MAP_SHARED|MAP_FIXED, 3, 0xb8000 >> 12);

The offset argument to mmap2 is divided by PAGE_SIZE.
That is the whole point of mmap2 :)

-- Jamie