On Tue, Feb 8, 2011 at 5:00 AM, Chris Webb <chris.webb@xxxxxxxxxxxxxxxx> wrote: > "Roedel, Joerg" <Joerg.Roedel@xxxxxxx> writes: > >> On Mon, Feb 07, 2011 at 09:04:40PM -0500, Robert Hancock wrote: >> > On 02/07/2011 11:48 AM, Chris Webb wrote: >> > > I've now done this, swapping in a Highpoint R620. I get the same >> > > IO_PAGE_FAULT, same timeouts on the sata card, but lspci now shows up the >> > > device 03:00.1. I've put the new dmesg and lspci output at >> > > >> > > http://cdw.me.uk/tmp/sata-fault-hpt.dmesg >> > > http://cdw.me.uk/tmp/sata-fault-hpt.lspci >> > > >> > > Again, problem is present both with 2.6.32.25 and 2.6.37. >> > >> > Curious.. We don't even have a driver loaded for the PATA device on that >> > chip so I don't see how we could be telling it to do anything. As far as >> > I can see there are a few possible causes: Either the device is >> > generating read requests which appear to come from the PATA function >> > rather than the SATA one for some reason, the IOMMU is picking up the >> > wrong device function for requests from that device, or something in the >> > platform is somehow misconfiguring the device to cause this error. It >> > may not be easy to figure out which one is the cause, however. >> >> The most likely reason for this is, that the add-on card uses both >> request-ids (03:00.0 and 03:00.1) for requests originating from the SATA >> controler. The address in the page-fault looks like an address the IOMMU >> driver would assign but from a device which has no driver loaded. >> If this is a know feature of the card the BIOS should detect it an >> report it in the IVRS table with an alias-range. The driver would handle >> it in this situation. Otherwise it looks like a problem with the >> addon-card. > > Hi Joerg. What's particularly puzzling here is that the symptoms are pretty > much the same with two completely different AHCI SATA cards. I expected to > be able to work around the problem by swapping in a different SATA card with > a different chipset, but it seems to be a problem with both. Did you try different chipsets? The two sets of output you posted are both from Marvell 88SE9123-based cards. -- 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
