Hi, I've an ASUS A8V motherboard with a via chipset: [jean-luc@tangerine] % lspci 00:00.0 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:00.1 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:00.2 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:00.3 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:00.4 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:00.7 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge [K8T800/K8T890 South] 2 SATA drives are on this chipset, using lvm over a raid1. I've a X86-64 architecture on an amd64. Since 2.6.20-git, the system refuses to boot, I've the same problem with 2.6.21-rc1. I've opened a bug, see: http://bugzilla.kernel.org/show_bug.cgi?id=8025 but I'm not sure it was the appropriate way. At boot time, I've the following messages: ACPI: PCI Interrupt 0000:00:0f.0[B] GSI 20(level, low) -> IRQ 20 sata_via 0000:00:0f.0: failed on iomap PCI BAR 0 sata_via 0000:00:0f.0: out of memory ACPI: PCI interrupt for device 0000:00:0f.0 is disabled sata_via: probe of 0000:00:0f.0 failed with error -12 Then the raid is not assembled and the system wont boot. These are the options (parts of] enabled in my config file: # # ATA/ATAPI/MFM/RLL support # CONFIG_IDE=m CONFIG_BLK_DEV_IDE=m # # Please see Documentation/ide.txt for help/info on IDE drives # # CONFIG_BLK_DEV_IDE_SATA is not set # CONFIG_BLK_DEV_HD_IDE is not set CONFIG_BLK_DEV_IDEDISK=m CONFIG_IDEDISK_MULTI_MODE=y CONFIG_BLK_DEV_IDECD=m # CONFIG_BLK_DEV_IDETAPE is not set # CONFIG_BLK_DEV_IDEFLOPPY is not set ... # # IDE chipset support/bugfixes # # CONFIG_IDE_GENERIC is not set # CONFIG_BLK_DEV_CMD640 is not set # CONFIG_BLK_DEV_IDEPNP is not set CONFIG_BLK_DEV_IDEPCI=y # CONFIG_IDEPCI_SHARE_IRQ is not set # CONFIG_BLK_DEV_OFFBOARD is not set # CONFIG_BLK_DEV_GENERIC is not set # CONFIG_BLK_DEV_OPTI621 is not set # CONFIG_BLK_DEV_RZ1000 is not set CONFIG_BLK_DEV_IDEDMA_PCI=y # CONFIG_BLK_DEV_IDEDMA_FORCED is not set CONFIG_IDEDMA_PCI_AUTO=y # CONFIG_IDEDMA_ONLYDISK is not set # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_BLK_DEV_ALI15X3 is not set # CONFIG_BLK_DEV_AMD74XX is not set # CONFIG_BLK_DEV_ATIIXP is not set # CONFIG_BLK_DEV_CMD64X is not set # CONFIG_BLK_DEV_TRIFLEX is not set # CONFIG_BLK_DEV_CY82C693 is not set # CONFIG_BLK_DEV_CS5520 is not set # CONFIG_BLK_DEV_CS5530 is not set # CONFIG_BLK_DEV_HPT34X is not set # CONFIG_BLK_DEV_HPT366 is not set # CONFIG_BLK_DEV_JMICRON is not set # CONFIG_BLK_DEV_SC1200 is not set # CONFIG_BLK_DEV_PIIX is not set # CONFIG_BLK_DEV_IT8213 is not set # CONFIG_BLK_DEV_IT821X is not set # CONFIG_BLK_DEV_NS87415 is not set # CONFIG_BLK_DEV_PDC202XX_OLD is not set # CONFIG_BLK_DEV_PDC202XX_NEW is not set # CONFIG_BLK_DEV_SVWKS is not set # CONFIG_BLK_DEV_SIIMAGE is not set # CONFIG_BLK_DEV_SIS5513 is not set # CONFIG_BLK_DEV_SLC90E66 is not set # CONFIG_BLK_DEV_TRM290 is not set CONFIG_BLK_DEV_VIA82CXXX=m # CONFIG_BLK_DEV_TC86C001 is not set # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y CONFIG_IDEDMA_IVB=y CONFIG_IDEDMA_AUTO=y # # Serial ATA (prod) and Parallel ATA (experimental) drivers # CONFIG_ATA=m # CONFIG_ATA_NONSTANDARD is not set # CONFIG_SATA_AHCI is not set # CONFIG_SATA_SVW is not set # CONFIG_ATA_PIIX is not set # CONFIG_SATA_MV is not set # CONFIG_SATA_NV is not set # CONFIG_PDC_ADMA is not set # CONFIG_SATA_QSTOR is not set CONFIG_SATA_PROMISE=m # CONFIG_SATA_SX4 is not set # CONFIG_SATA_SIL is not set # CONFIG_SATA_SIL24 is not set # CONFIG_SATA_SIS is not set # CONFIG_SATA_ULI is not set CONFIG_SATA_VIA=m # CONFIG_SATA_VITESSE is not set # CONFIG_SATA_INIC162X is not set CONFIG_SATA_ACPI=y ... I've found a quite similar problem in the archive but which seems to have been fixed in the meantime, in this thread: http://www.ussg.iu.edu/hypermail/linux/kernel/0702.1/1580.html [I'm not subscribed to the list] Regards Jean-Luc