On Tuesday 21 August 2007 14:27:31 Alan Cox wrote: > > The transfer mode decreases from UDMA/100 to UDMA/66 and then UDMA/33 but > > it doesn't help at all. The drive itself is fine, the problems also > > appear with > > Does it settle at UDMA33 or keep going down lower ?
It does not go below UDMA33. dd if=/dev/zero of=some.file bs=131072 count=1024 takes 526 seconds (amazing transfer rate 255KB/s) with system being unresponsive most of the time. Commenting out the UDMA support in sata_via.c (.udma_mask and .set_dmamode for PATA port) causes the driver to run in PIO4 mode which seems to work without errors but slowly (3MB/s with 100% CPU load). -- Ondrej Zary - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
