On 09/03/2007 04:11 AM, Mikael Pettersson wrote: > On Mon, 03 Sep 2007 01:04:08 +0200, Peter Favrholdt wrote: >> Hi Mikael Pettersson wrote: >>> I'm easily able to reproduce this problem on my sata_promise test rig. >>> Using 2.6.23-rc5 to dd read a single Seagate disk on a SATA300 TX4 card >>> quickly fails as Peter described. >>> >>> Applying the 1.5Gbps patch to the driver appears to make things stable. >>> >>> Those SATAII chips really don't seem to like 3Gbps mode. Or else we're >>> missing some critical documentation on how to make them work. >> The funny thing is: I have the exact same adapter and disks in a Dell >> PE1800 server. This doesn't show any errors. >> >> Only difference is the card is in a PCI-X slot and the server is running >> Linux 2.6.19.5. > > I assume the PE1800 has some Intel chipset? Which one? > And the machine that does have problems, what chipset does it have? > > I'm actually beginning to think there's some PCI compatibility breakage > somewhere, as I too see sata_promise working fine in some machines but > not in others. Alas, my knowledge of PCI tweakables is close to nil. I am seeing some problems solved by using pci=nomsi and/or pci=nommconf. We either have a bug in MSI, especially on x86_64, or some chipsets just don't work very well with it. - 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
