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Date: Sun, 5 Oct 2008 21:09:33 -0400
From: David Relson <relson@osagesoftware.com>
To: gentoo-user <gentoo-user@lists.gentoo.org>
Subject: [gentoo-user] new kernel, hdparm not happy
Message-ID: <20081005210933.7171b162@osage.osagesoftware.com>
Organization: Osage Software Systems, Inc.
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Greetings!

I've recently updated from kernel 2.6.20 to 2.6.24 a little used
machine.  The new kernel is working quite well.  However hdparm isn't
happy.  

Running either "hdparm -d0 /dev/hda" or "hdparm -d1 /dev/hda" gives a
"HDIO_SET_DMA failed: Operation not permitted" error.  Using the same
config for 2.6.25 gives the same result as 2.6.24.

Here are the DMA related options that are enabled:

OLD (2.6.20):

    CONFIG_BLK_DEV_IDEDMA=y
    CONFIG_BLK_DEV_IDEDMA_PCI=y
    CONFIG_GENERIC_ISA_DMA=y
    CONFIG_IDEDMA_AUTO=y
    CONFIG_IDEDMA_PCI_AUTO=y
    CONFIG_ISA_DMA_API=y


NEW (2.6.24 and 2.6.25):
    CONFIG_BLK_DEV_IDEDMA=y
    CONFIG_BLK_DEV_IDEDMA_PCI=y
    CONFIG_GENERIC_ISA_DMA=y
    CONFIG_HAS_DMA=y
    CONFIG_ISA_DMA_API=y
    CONFIG_SCSI_DMA=y
    CONFIG_ZONE_DMA=y
    CONFIG_ZONE_DMA_FLAG=1

Can anybody tell me what I've missed?

Thanks.

David