[Bug 19865] DMA timeouts on UDMA harddisks

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Fri Dec 9 08:02:47 UTC 2005


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------- Additional Comments From apeeters at lashout.net  2005-12-09 08:02 UTC -------
Created an attachment (id=5232)
 --> (http://bugzilla.ubuntu.com/attachment.cgi?id=5232&action=view)
hdparm output on Latitude D505

I do not think disabling DMA is acceptable. This reduces the read speed to
approximately 3MB/sec. Attached are some test results. As for the -B option:
disabling apm on a laptop does not seem very useful either.

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