Søren Schmidt
2005-Jan-30 13:28 UTC
READ_DMA timeouts caused by ALI southbridge (5.3-STABLE)
Pertti Kosunen wrote:> My READ_DMA timeout problem with 160GB disk partitially solved. Asus > A7A266 southbridge (ALi 1535D+) don't support DMA with LBA48. This is > somehow worked around with Windows drivers, so is same possible in > FreeBSD also?I guess their "workaround" is to use PIO mode to access the portions that need 48bit access. There is currently no provision in ATA for doing this on a "quirk" basis, but that could be added at some time. I'll stick it on my TODO list... -- -S?ren