netdev - Re: [patch 08/20] ibmveth: Dont overallocate buffers

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Message-ID: <20100823204916.GB15499@linux.vnet.ibm.com>
Date:	Mon, 23 Aug 2010 15:49:17 -0500
From:	Robert Jennings <rcj@...ux.vnet.ibm.com>
To:	Anton Blanchard <anton@...ba.org>
Cc:	brking@...ux.vnet.ibm.com, santil@...ux.vnet.ibm.com,
	netdev@...r.kernel.org
Subject: Re: [patch 08/20] ibmveth: Dont overallocate buffers

* Anton Blanchard (anton@...ba.org) wrote:
> We were allocating a page, even though we always want 4k. Use kmalloc
> instead of get_zeroed_page.

I get a failure during device open when we have a 4k allocation rather
than a 64k page allocation.  This is running on a Power6 LPAR without
AMS.

(drivers/net/ibmveth.c:621 ua:3000000c) ERROR: h_register_logical_lan failed with -4
(drivers/net/ibmveth.c:626 ua:3000000c) ERROR: buffer TCE:0x300 filter TCE:0x2300 rxq desc:0x8000601000004000 MAC:0x763cbdd9d30c

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