On Thursday 13 October 2005 13:58, Kirk Bocek wrote: > I ran this on kernel 2.6.13.2. So I'm not so sure it's a kernel issue. > > Kirk > > Steve Adeff wrote: > > On Thursday 13 October 2005 13:13, Kirk Bocek wrote: > >>I've used hdparm -Tt on all sorts of non-IDE devices: flash-memory > >> drives, Raid devices, RAM drives. It's never been a problem. > >> > >>Kirk > >> > >>Steve Adeff wrote: > >>>On Thursday 13 October 2005 12:50, Kirk Bocek wrote: > >>>>Here's the output on my SATA drive: > >>>> > >>>># hdparm -Tt /dev/sda > >>>> > >>>>/dev/sda: > >>>> Timing cached reads: 3832 MB in 2.00 seconds = 1915.88 MB/sec > >>>>HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate > >>>>ioctl for device Timing buffered disk reads: 184 MB in 3.02 seconds = > >>>>60.84 MB/sec HDIO_DRIVE_CMD(null) (wait for flush complete) failed: > >>>>Inappropriate ioctl for device > >>>> > >>>>So it fails on some sort of IO command but still runs the benchmark. > >>>> > >>>>Kirk > >>> > >>>those IO errors are normal as hdparm is designed for IDE while the SATA > >>>drivers treat SATA as a SCSI device. from your numbers though, DMA is > >>>definitely on. > >>> > >>>Steve > > > > Well, yes, but the older SATA drivers didn't have a complete command set. > > I used to get the same error on my SATA drives but with the 2.6.13 kernel > > i don't. Nothing to worry about though, and as I said, "DMA" is > > definitely on (not that SATA does the whole DMA thing like PATA does). > > > > Steve
quite strange, don't know what to say, so I'll bow out of this thread... -- Steve _______________________________________________ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
