On Tuesday 09 October 2007 20:01, Robert Hancock wrote: > Some people with certain Supermicro boards (at least the H8DCE, it > seems) have reported that the sata_nv driver fails to attach to some of > the controllers due to resource conflicts: > > https://bugzilla.redhat.com/show_bug.cgi?id=280641 > https://bugzilla.redhat.com/show_bug.cgi?id=313491 > > Essentially since about 2.6.22 or so (before which we apparently didn't > handle PnpACPI reserved MMIO regions?) we get: So if you boot with "pnpacpi=off" then the board is happy? -Len > pnp: 00:09: iomem range 0xdfefd000-0xdfefd3ff has been reserved > pnp: 00:09: iomem range 0xdfefe000-0xdfefe3ff has been reserved > > when the CK804 SATA controllers have as their BIOS-assigned resources: > > 80:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller > (rev f3) (prog-if 85 [Master SecO PriO]) > Subsystem: Super Micro Computer Inc Unknown device 1011 > Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR- FastB2B- > Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- > <MAbort- >SERR- <PERR- > Interrupt: pin A routed to IRQ 46 > Region 0: I/O ports at e400 [size=8] > Region 1: I/O ports at e000 [size=4] > Region 2: I/O ports at dc00 [size=8] > Region 3: I/O ports at d800 [size=4] > Region 4: I/O ports at d400 [size=16] > Region 5: Memory at dfefd000 (32-bit, non-prefetchable) > > and > > 80:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller > (rev f3) (prog-if 85 [Master SecO PriO]) > Subsystem: Super Micro Computer Inc Unknown device 1011 > Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR- FastB2B- > Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- > <MAbort- >SERR- <PERR- > Interrupt: pin A routed to IRQ 45 > Region 0: I/O ports at f800 [size=8] > Region 1: I/O ports at f400 [size=4] > Region 2: I/O ports at f000 [size=8] > Region 3: I/O ports at ec00 [size=4] > Region 4: I/O ports at e800 [size=16] > Region 5: Memory at dfefe000 (32-bit, non-prefetchable) [size=4K] > > And so of course we get: > > sata_nv 0000:80:07.0: Using ADMA mode > PCI: Unable to reserve mem region #6:1000@dfefd000 for device 0000:80:07.0 > ACPI: PCI interrupt for device 0000:80:07.0 disabled > sata_nv: probe of 0000:80:07.0 failed with error -16 > ACPI: PCI Interrupt Link [LT2E] enabled at IRQ 45 > ACPI: PCI Interrupt 0000:80:08.0[A] -> Link [LT2E] -> GSI 45 (level, > low) -> IRQ 45 > sata_nv 0000:80:08.0: Using ADMA mode > PCI: Unable to reserve mem region #6:1000@dfefe000 for device 0000:80:08.0 > ACPI: PCI interrupt for device 0000:80:08.0 disabled > sata_nv: probe of 0000:80:08.0 failed with error -16 > > So essentially the BIOS has erroneously reserved the SATA controller's > BARs in the ACPI motherboard resources, preventing the driver from > attaching to the device. > > Any ideas on what we can do about this? > > -Get Supermicro to fix the BIOS - already tried, it seems > -System-specific quirk to ignore these resource reservations? > -Try to move the PCI resources if they conflict with the ACPI resource > reservations? > > I wonder how Windows deals with this, if it even does on these boards? > - 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
