I haven't had much luck with the 2.6.35 version of kernels - they have cause panics on two different x86 boxen.
Now that 2.6.35 has gone stable so I tried it again and I'm getting a kernel panic complaining about VFS unable to mount root fs: ================================== VFS: Cannot open root device "sda3" or unknown-block(0,0) Please append a correct "root=" boot option; here are the available partitions: Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) Pid: 1, comm: swapper Not tainted 2.6.35-gentoo-r12 #2 Call Trace: [<c14b3530>] ? panic+0x5f/0xc6 [<c1693c68>] ? mount_block_root+0x1c2/0x245 [<c1002930>] ? do_signal+0x766/0x7f2 [<c1693d31>] ? mount_root+0x46/0x5a [<c1693e8b>] ? prepare_namespace+0x146/0x182 [<c1093203>] ? sys_access+0x1f/0x23 [<c16933f1>] ? kernel_init+0x1a9/0x1b7 [<c1693248>] ? kernel_init+0x0/0x1b7 [<c10030b6>] ? kernel_thread_helper+0x6/0x10 panic occurred, switching back to text console ================================== This is my chipset: ======================= *-pci description: Host bridge product: 82915G/P/GV/GL/PL/910GL Memory Controller Hub vendor: Intel Corporation physical id: 100 bus info: p...@0000:00:00.0 version: 04 width: 32 bits clock: 33MHz *-pci:0 description: PCI bridge product: 82915G/P/GV/GL/PL/910GL PCI Express Root Port vendor: Intel Corporation physical id: 1 bus info: p...@0000:00:01.0 version: 04 width: 32 bits clock: 33MHz capabilities: pci pm msi pciexpress normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:40 ioport:b000(size=4096) memory:cfe00000-cfefffff memory:d0000000-dfffffff [snip ...] *-pci:1 description: PCI bridge product: 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 vendor: Intel Corporation physical id: 1c bus info: p...@0000:00:1c.0 version: 03 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:41 ioport:c000(size=4096) memory:c0000000-c01fffff ioport:c0200000(size=2097152) [snip ...] *-ide:1 description: IDE interface product: 82801FB/FW (ICH6/ICH6W) SATA Controller vendor: Intel Corporation physical id: 1f.2 bus info: p...@0000:00:1f.2 logical name: scsi2 version: 03 width: 32 bits clock: 66MHz capabilities: ide pm bus_master cap_list emulated configuration: driver=ata_piix latency=0 resources: irq:19 ioport:9400(size=8) ioport:9000(size=4) ioport:8800(size=8) ioport:8400(size=4) ioport:8000(size=16) *-disk description: ATA Disk product: WDC WD2500JD-22H vendor: Western Digital physical id: 0.0.0 bus info: s...@2:0.0.0 logical name: /dev/sda version: 08.0 serial: WD-WMAL71304147 size: 232GiB (250GB) capabilities: partitioned partitioned:dos configuration: ansiversion=5 signature=08640863 ======================= and these are the kernel options (which work fine with 2.6.34-r12): ======================= # Bus options (PCI etc.) # CONFIG_PCI=y # CONFIG_PCI_GOBIOS is not set # CONFIG_PCI_GOMMCONFIG is not set # CONFIG_PCI_GODIRECT is not set # CONFIG_PCI_GOOLPC is not set CONFIG_PCI_GOANY=y CONFIG_PCI_BIOS=y CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y CONFIG_PCI_DOMAINS=y # CONFIG_PCI_CNB20LE_QUIRK is not set CONFIG_PCIEPORTBUS=y CONFIG_PCIEAER=y # CONFIG_PCIE_ECRC is not set # CONFIG_PCIEAER_INJECT is not set # CONFIG_PCIEASPM is not set CONFIG_PCIE_PME=y CONFIG_ARCH_SUPPORTS_MSI=y # CONFIG_PCI_MSI is not set # CONFIG_PCI_STUB is not set CONFIG_HT_IRQ=y # CONFIG_PCI_IOV is not set CONFIG_PCI_IOAPIC=y CONFIG_ISA_DMA_API=y CONFIG_ISA=y # CONFIG_EISA is not set # CONFIG_MCA is not set # CONFIG_SCx200 is not set # CONFIG_OLPC is not set CONFIG_K8_NB=y # CONFIG_PCCARD is not set # CONFIG_HOTPLUG_PCI is not set [snip ...] # Protocols # # CONFIG_ISAPNP is not set # CONFIG_PNPBIOS is not set CONFIG_PNPACPI=y CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set # CONFIG_BLK_DEV_XD is not set # CONFIG_PARIDE is not set # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set # CONFIG_BLK_DEV_DAC960 is not set # CONFIG_BLK_DEV_UMEM is not set # CONFIG_BLK_DEV_COW_COMMON is not set CONFIG_BLK_DEV_LOOP=y # CONFIG_BLK_DEV_CRYPTOLOOP is not set # CONFIG_BLK_DEV_DRBD is not set # CONFIG_BLK_DEV_NBD is not set # CONFIG_BLK_DEV_SX8 is not set # CONFIG_BLK_DEV_UB is not set CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=4096 # CONFIG_BLK_DEV_XIP is not set CONFIG_CDROM_PKTCDVD=y CONFIG_CDROM_PKTCDVD_BUFFERS=8 # CONFIG_CDROM_PKTCDVD_WCACHE is not set # CONFIG_ATA_OVER_ETH is not set # CONFIG_BLK_DEV_HD is not set # CONFIG_MISC_DEVICES is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set # # SCSI device support # CONFIG_SCSI_MOD=y # CONFIG_RAID_ATTRS is not set CONFIG_SCSI=y CONFIG_SCSI_DMA=y # CONFIG_SCSI_TGT is not set # CONFIG_SCSI_NETLINK is not set CONFIG_SCSI_PROC_FS=y # # SCSI support type (disk, tape, CD-ROM) # CONFIG_BLK_DEV_SD=y # CONFIG_CHR_DEV_ST is not set # CONFIG_CHR_DEV_OSST is not set CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set # CONFIG_SCSI_SCAN_ASYNC is not set CONFIG_SCSI_WAIT_SCAN=m # SCSI Transports # # CONFIG_SCSI_SPI_ATTRS is not set # CONFIG_SCSI_FC_ATTRS is not set # CONFIG_SCSI_ISCSI_ATTRS is not set # CONFIG_SCSI_SAS_ATTRS is not set # CONFIG_SCSI_SAS_LIBSAS is not set # CONFIG_SCSI_SRP_ATTRS is not set # CONFIG_SCSI_LOWLEVEL is not set CONFIG_SCSI_DH=y # CONFIG_SCSI_DH_RDAC is not set # CONFIG_SCSI_DH_HP_SW is not set # CONFIG_SCSI_DH_EMC is not set # CONFIG_SCSI_DH_ALUA is not set # CONFIG_SCSI_OSD_INITIATOR is not set CONFIG_ATA=y # CONFIG_ATA_NONSTANDARD is not set # CONFIG_ATA_VERBOSE_ERROR is not set CONFIG_ATA_ACPI=y # CONFIG_SATA_PMP is not set # # Controllers with non-SFF native interface # # CONFIG_SATA_AHCI is not set # CONFIG_SATA_AHCI_PLATFORM is not set # CONFIG_SATA_INIC162X is not set # CONFIG_SATA_SIL24 is not set # CONFIG_ATA_SFF is not set # CONFIG_MD is not set # CONFIG_FUSION is not set ======================= Am I missing something obvious to make the 2.6.35 series work with my boxen? Please ask if you need more info. -- Regards, Mick