On Tuesday 08 July 2008 08:08:46 am James Bottomley wrote: > That said, this line: > > mptbase: ioc0: ERROR - Doorbell ACK timeout (count=4999), IntStatus=80000009! > > is absolutely characteristic of a lost interrupt. > > With the current LSI driver, we have two possible causes for this. One > is the usual ACPI screw up that we never seem to be able to fix. Which ACPI screw up is that? And what's the usual recipe? I know about the ancient "pci=routeirq" recipe, but as far as I know, there are no current problems that require that. > The > other is that the driver recently enabled MSI (commit > 23a274c8a5adafc74a66f16988776fc7dd6f6e51 in v2.6.26-rc1). For the > former, just follow the usual ACPI screw up recipe. For the latter, you > should see this message in the boot up: > > mptbase: ioc0: PCI-MSI enabled > > MSI can be turned off again by using the module parameter > mpt_msi_enable=0. > > Unfortunately, the true fix is to find out if the motherboard really has > a global MSI problem (and I know MSI works with the LSI because I have a > 1030 in an ia64 system here working just fine) and add it to the PCI > quirks file as unable to use MSI. > > James -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
