From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <20020621220053.26673.qmail@email.com> Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 7bit MIME-Version: 1.0 From: "Sanjay AG" Date: Sat, 22 Jun 2002 06:00:53 +0800 Subject: HighMem test Sender: owner-linux-mm@kvack.org Return-Path: To: linux-mm@kvack.org List-ID: 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 -- __________________________________________________________ Sign-up for your own FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup Save up to $160 by signing up for NetZero Platinum Internet service. http://www.netzero.net/?refcd=N2P0602NEP8 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/