From: Carl Spalletta <ioanamitu@yahoo.com>
To: linux-kernel@vger.kernel.org
Subject: Re: 10MB buffer
Date: Wed, 17 Mar 2004 12:36:02 -0800 (PST) [thread overview]
Message-ID: <20040317203602.75866.qmail@web60505.mail.yahoo.com> (raw)
> I am running a SuSE 2.4.19 Kernel and have a requirement
> to allocate a 10MB buffer (page aligned).
I suppose you mean contiguous in physical memory?
And accessible from userspace?
> Is this possbile via alloc_bootmem_pages?
This may be impossbile [sic].
see www.csn.ul.ie/~mel/projects/vm/guide/html/understand/node37.html
also see LKML thread "Re: mapping physical memory":
"tell the kernel that you have 8MB *less* RAM than is actually present
using a "mem=" directive at boot, then grab that last piece of memory
by mmap'ing /dev/mem."
see utah-glx.sourceforge.net/memory-usage.html
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next reply other threads:[~2004-03-17 20:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-17 20:36 Carl Spalletta [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-03-17 14:55 Bloch, Jack
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