Messages in this thread | | | Date | Fri, 5 Nov 1999 18:47:22 +0100 | From | Jens Axboe <> | Subject | Re: A bug between kernel and hdparm |
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On Fri, Nov 05 1999, H.J. Lu wrote: > Hi, > > There is a bug between kernel and hdparm. hdparm can change the setting > on an IDE device. For example, > > # hdparm -d1 -X 18 /dev/hda > > will change the DMA mode on /dev/hda. However, the change is not > updated in the kernel data structure for hda. As the result, > > # hdparm -i /dev/hda > # hdparm -d1 -X 18 /dev/hda > # hdparm -i /dev/hda > > will not show the DMA mode change on /dev/hda.
The way I understand it, -i will print original drive information obtained at boot. A plain hdparm shows DMA info correctly here.
-- * Jens Axboe <axboe@image.dk> * Linux CD-ROM Maintainer * http://www.kernel.dk
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