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From: | James Boddington |
Subject: | Re: [Qemu-devel] enabling bus-master IDE driver |
Date: | Sun, 07 Nov 2004 07:57:54 +1000 |
User-agent: | Mozilla Thunderbird 0.9 (X11/20041103) |
Johannes Schindelin wrote:
Hi, On Fri, 5 Nov 2004, Jason Brittain wrote:/dev/hda: setting using_dma to 1 (on) HDIO_SET_DMA failed: Operation not permitted using_dma = 0 (off)Are you sure you did as guest root? This error could happen if you try to use hdparm as a plain user. I would expect a different error if the drive is not capable of doing DMA.
I am getting the same error with the latest from cvs and with 0.6.0. Tired both with and without the busmaster patch. Definately logged in as root.
This is what I get during boot. PIIX3: IDE controller at PCI slot 0000:00:01.1 PIIX3: chipset revision 0 PIIX3: not 100% native mode: will probe irqs later PCI: Setting latency timer of device 0000:00:01.1 to 64 ide0: BM-DMA at 0xc000-0xc007, BIOS settings: hda:pio, hdb:pio ide1: BM-DMA at 0xc008-0xc00f, BIOS settings: hdc:pio, hdd:pio I found 2000 is using pio as well. -- James
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