Hi Tejun! Friday 25, at 02:50:06 PM you wrote: > Andrew Paprocki wrote: > > I have an SB600/RS690 here with SATA drives connected. I haven't been > > following this thread, but I can help test something if it would help. > > We're trying to determine whether SB600 ahci controller can do 64bit DMA > or not. Srihari's couldn't but Shane's test result tells a different > story. Do you have memory mapped over 4G (if you have 4G some of them > will be over 4G, you can know this by looking at the e820 map printed > during boot)? $ lspci -nn 00:00.0 Host bridge [0600]: ATI Technologies Inc RD580 [CrossFire Xpress 3200] Chipset Host Bridge [1002:5952] 00:02.0 PCI bridge [0604]: ATI Technologies Inc RS480 PCI-X Root Port [1002:5a34] 00:05.0 PCI bridge [0604]: ATI Technologies Inc RS480 PCI Bridge [1002:5a37] 00:12.0 SATA controller [0106]: ATI Technologies Inc SB600 Non-Raid-5 SATA [1002:4380] ... Is this hardware enough for testing? I can add 2G to existing 4G of RAM and post dmesg. -- WBR et al. - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
