On Tuesday, 12 of August 2008, Maciej Rutecki wrote: > 2008/8/12 Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>: > >> > +sr 4:0:0:0: Attached scsi CD-ROM sr0 > >> > >> looks like you are using ata driver for pata device instead of ide driver. > >> > >> so could be caused by bug in ata_piix... > > > > See the original bug report - he tried both and got the same kind of > > behaviour. > > > > > > Yes I have similar behaviour, very often kernel stops on this message: > http://unixy.pl/maciek/download/kernel/dupa/2.6.26.2_config_ide/img_0001.jpg In both cases one of the last messages is ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 17 (level, low) -> IRQ 17 and that comes from AHCI, or rather from pci_enable_device() invoked by AHCI. Then, there are no more messages from AHCI, although there should be at least ahci 0000:00:1f.2: AHCI 0001.0100 32 slots 4 ports 1.5 Gbps 0x1 impl SATA mode ahci 0000:00:1f.2: flags: 64bit ncq ilck stag pm led clo pmp pio slum part PCI: Setting latency timer of device 0000:00:1f.2 to 64 So, it seems like the enabling of AHCI interrupt causes the failure and since that's not 100% reproducible, it indicates a timing issue. Thanks, Rafael -- 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
