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Date: Sun, 25 Jul 2004 17:25:33 +0200
From: Nesimi Buelbuel <nesimi.buelbuel@gmx.de>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: High CPU usage for disk I/O while DMA is enabled
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On Sun, 25 Jul 2004 16:50:27 +0200
Rudo Thomas <rudo@matfyz.cz> wrote:

> Maybe you don't have the right IDE driver configured
> (CONFIG_BLK_DEV_*)...

actually I have compiled it into the Kernel.

here is a grep from all DMA related Kernel options:

CONFIG_GENERIC_ISA_DMA=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_IDEDMA_ONLYDISK=y
CONFIG_BLK_DEV_ADMA=y
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
CONFIG_IDEDMA_AUTO=y


Nesimi