From: Benjamin LaHaise <bcrl@redhat.com>
To: Sanjay AG <agsanjay@email.com>
Cc: linux-mm@kvack.org
Subject: Re: HighMem test
Date: Fri, 21 Jun 2002 18:17:32 -0400 [thread overview]
Message-ID: <20020621181732.J1499@redhat.com> (raw)
In-Reply-To: <20020621220053.26673.qmail@email.com>; from agsanjay@email.com on Sat, Jun 22, 2002 at 06:00:53AM +0800
That was fixed in 2.4.19-rc1.
-ben
On Sat, Jun 22, 2002 at 06:00:53AM +0800, Sanjay AG wrote:
> Hi,
> I am trying to test a ethernet driver that supports 64-bit addressing. I was hoping that I would see buffers which are mapped beyond the 4G physical addr (i.e > 32-bit) if I have HIGHMEM enabled and use apps that make use of "sendfile" for Zero-copy (like in pure-ftpd) on a IA-32 machine. However my pci_map_page for the buffer seems to have the upper-32 bits all 0's. Is there something I am missing w/regard to HighMem operation? or is there a better test app that I can use?
>
> BTW my test machine setup has 5GB of RAM running a 2.4.16 HIGHMEM enabled kernel.
>
> Would appreciate any responses or pointers...
> -Sanjay
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prev parent reply other threads:[~2002-06-21 22:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-21 22:00 HighMem test Sanjay AG
2002-06-21 22:17 ` Benjamin LaHaise [this message]
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