Hello,
I am in a strange situation: I am compiling Xen 3.1 for my machine
with SATA. Xen cannot recognize the root filesystem, and stopped with
a message like "Cannot mount /dev/sda2,....".
Usually, that means Dom0 has no suitable drivers, and I could always
solve the same problem before by choosing the correct drivers for Dom0
kernel.
However, it is different this time: I tried everything I can, but that
problem stands.
I even tried to compile the native kernel 2.6.18, and boot with that
kernel (ie. no Xen). It boots well. Then I copied the same option to
Dom0's .config, and recompile Dom0. But it doesnt help!!!
So I am wondering what is a good reason why Dom0 cannot recognize my
root filesystem, why native kernel can? That doesnt make any sense to
me at all.
Below is the diff of Dom0's .config, and native 2.6.18 .config. You
can see that the difference betweem these configurations has nothing
to do with drivers at all.
Any suggestion is appreciated!
Thanks,
Jun
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.18-xen0
-# Wed Jun 13 12:29:14 2007
+# Linux kernel version: 2.6.18
+# Tue Jun 12 14:55:18 2007
#
CONFIG_X86_64=y
CONFIG_64BIT=y
@@ -105,39 +105,57 @@ CONFIG_X86_PC=y
# CONFIG_MK8 is not set
CONFIG_MPSC=y
# CONFIG_GENERIC_CPU is not set
-CONFIG_X86_64_XEN=y
-CONFIG_X86_NO_TSS=y
-CONFIG_X86_NO_IDT=y
CONFIG_X86_L1_CACHE_BYTES=128
CONFIG_X86_L1_CACHE_SHIFT=7
CONFIG_X86_INTERNODE_CACHE_BYTES=128
+CONFIG_X86_TSC=y
CONFIG_X86_GOOD_APIC=y
# CONFIG_MICROCODE is not set
# CONFIG_X86_MSR is not set
# CONFIG_X86_CPUID is not set
+CONFIG_X86_HT=y
CONFIG_X86_IO_APIC=y
-CONFIG_X86_XEN_GENAPIC=y
CONFIG_X86_LOCAL_APIC=y
# CONFIG_MTRR is not set
CONFIG_SMP=y
+# CONFIG_SCHED_SMT is not set
+CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_BKL=y
-CONFIG_ARCH_FLATMEM_ENABLE=y
+CONFIG_NUMA=y
+# CONFIG_K8_NUMA is not set
+CONFIG_NODES_SHIFT=6
+CONFIG_X86_64_ACPI_NUMA=y
+# CONFIG_NUMA_EMU is not set
+CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
+CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_FLATMEM_MANUAL is not set
+CONFIG_DISCONTIGMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
+CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
+CONFIG_NEED_MULTIPLE_NODES=y
# CONFIG_SPARSEMEM_STATIC is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4096
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_MIGRATION is not set
CONFIG_RESOURCES_64BIT=y
+CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y
+CONFIG_OUT_OF_LINE_PFN_TO_PAGE=y
CONFIG_NR_CPUS=8
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_HPET_TIMER=y
+# CONFIG_HPET_EMULATE_RTC is not set
+CONFIG_IOMMU=y
+# CONFIG_CALGARY_IOMMU is not set
CONFIG_SWIOTLB=y
+CONFIG_X86_MCE=y
+# CONFIG_X86_MCE_INTEL is not set
+# CONFIG_X86_MCE_AMD is not set
# CONFIG_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x200000
@@ -157,36 +175,71 @@ CONFIG_GENERIC_PENDING_IRQ=y
# Power management options
#
CONFIG_PM=y
+CONFIG_PM_LEGACY=y
+CONFIG_PM_DEBUG=y
+CONFIG_SOFTWARE_SUSPEND=y
+CONFIG_PM_STD_PARTITION=""
+CONFIG_SUSPEND_SMP=y
#
# ACPI (Advanced Configuration and Power Interface) Support
#
CONFIG_ACPI=y
-CONFIG_ACPI_AC=y
-CONFIG_ACPI_BATTERY=y
-CONFIG_ACPI_BUTTON=y
-# CONFIG_ACPI_VIDEO is not set
+CONFIG_ACPI_SLEEP=y
+CONFIG_ACPI_SLEEP_PROC_FS=y
+CONFIG_ACPI_SLEEP_PROC_SLEEP=y
+CONFIG_ACPI_AC=m
+CONFIG_ACPI_BATTERY=m
+CONFIG_ACPI_BUTTON=m
+CONFIG_ACPI_VIDEO=m
# CONFIG_ACPI_HOTKEY is not set
-CONFIG_ACPI_FAN=y
-# CONFIG_ACPI_DOCK is not set
-CONFIG_ACPI_PROCESSOR=y
+CONFIG_ACPI_FAN=m
+CONFIG_ACPI_DOCK=m
+CONFIG_ACPI_PROCESSOR=m
CONFIG_ACPI_HOTPLUG_CPU=y
-CONFIG_ACPI_THERMAL=y
-# CONFIG_ACPI_ASUS is not set
-# CONFIG_ACPI_IBM is not set
-# CONFIG_ACPI_TOSHIBA is not set
+CONFIG_ACPI_THERMAL=m
+CONFIG_ACPI_NUMA=y
+CONFIG_ACPI_ASUS=m
+CONFIG_ACPI_IBM=m
+CONFIG_ACPI_TOSHIBA=m
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_SYSTEM=y
-CONFIG_ACPI_CONTAINER=y
-# CONFIG_ACPI_SBS is not set
+CONFIG_X86_PM_TIMER=y
+CONFIG_ACPI_CONTAINER=m
+CONFIG_ACPI_SBS=m
#
# CPU Frequency scaling
#
-# CONFIG_CPU_FREQ is not set
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_TABLE=m
+# CONFIG_CPU_FREQ_DEBUG is not set
+CONFIG_CPU_FREQ_STAT=m
+CONFIG_CPU_FREQ_STAT_DETAILS=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=m
+CONFIG_CPU_FREQ_GOV_USERSPACE=m
+CONFIG_CPU_FREQ_GOV_ONDEMAND=m
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
+
+#
+# CPUFreq processor drivers
+#
+CONFIG_X86_POWERNOW_K8=m
+CONFIG_X86_POWERNOW_K8_ACPI=y
+# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
+CONFIG_X86_ACPI_CPUFREQ=m
+
+#
+# shared options
+#
+# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
+# CONFIG_X86_SPEEDSTEP_LIB is not set
#
# Bus options (PCI etc.)
@@ -194,11 +247,10 @@ CONFIG_ACPI_CONTAINER=y
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
# CONFIG_PCI_MMCONFIG is not set
-CONFIG_XEN_PCIDEV_FRONTEND=y
-# CONFIG_XEN_PCIDEV_FE_DEBUG is not set
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=m
# CONFIG_HOTPLUG_PCI_PCIE_POLL_EVENT_MODE is not set
+CONFIG_PCI_MSI=y
# CONFIG_PCI_DEBUG is not set
#
@@ -211,7 +263,8 @@ CONFIG_HOTPLUG_PCI_PCIE=m
#
CONFIG_HOTPLUG_PCI=m
CONFIG_HOTPLUG_PCI_FAKE=m
-# CONFIG_HOTPLUG_PCI_ACPI is not set
+CONFIG_HOTPLUG_PCI_ACPI=m
+CONFIG_HOTPLUG_PCI_ACPI_IBM=m
CONFIG_HOTPLUG_PCI_CPCI=y
CONFIG_HOTPLUG_PCI_CPCI_ZT5550=m
CONFIG_HOTPLUG_PCI_CPCI_GENERIC=m
@@ -501,7 +554,13 @@ CONFIG_FW_LOADER=y
#
# Plug and Play support
#
-# CONFIG_PNP is not set
+CONFIG_PNP=y
+# CONFIG_PNP_DEBUG is not set
+
+#
+# Protocols
+#
+CONFIG_PNPACPI=y
#
# Block devices
@@ -549,6 +608,7 @@ CONFIG_BLK_DEV_IDESCSI=m
#
CONFIG_IDE_GENERIC=y
# CONFIG_BLK_DEV_CMD640 is not set
+# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
# CONFIG_BLK_DEV_OFFBOARD is not set
@@ -700,6 +760,7 @@ CONFIG_NETDEVICES=y
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
+# CONFIG_NET_SB1000 is not set
#
# ARCnet devices
@@ -855,8 +916,10 @@ CONFIG_STALDRV=y
#
# Serial drivers
#
-CONFIG_SERIAL_8250=m
-CONFIG_SERIAL_8250_PCI=m
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_PCI=y
+CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_NR_UARTS=48
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
@@ -868,7 +931,8 @@ CONFIG_SERIAL_8250_RSA=y
#
# Non-8250 serial port support
#
-CONFIG_SERIAL_CORE=m
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
@@ -960,15 +1024,19 @@ CONFIG_PC8736x_GPIO=m
CONFIG_NSC_GPIO=m
CONFIG_RAW_DRIVER=m
CONFIG_MAX_RAW_DEVS=256
-# CONFIG_HPET is not set
+CONFIG_HPET=y
+# CONFIG_HPET_RTC_IRQ is not set
+CONFIG_HPET_MMAP=y
CONFIG_HANGCHECK_TIMER=m
#
# TPM devices
#
CONFIG_TCG_TPM=m
+CONFIG_TCG_TIS=m
+CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
-# CONFIG_TCG_XEN is not set
+CONFIG_TCG_INFINEON=m
CONFIG_TELCLOCK=m
#
@@ -1145,6 +1213,7 @@ CONFIG_FIRMWARE_EDID=y
#
CONFIG_VGA_CONSOLE=y
# CONFIG_VGACON_SOFT_SCROLLBACK is not set
+CONFIG_VIDEO_SELECT=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
@@ -1172,7 +1241,7 @@ CONFIG_USB=m
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_BANDWIDTH is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
-# CONFIG_USB_SUSPEND is not set
+CONFIG_USB_SUSPEND=y
# CONFIG_USB_OTG is not set
#
@@ -1330,6 +1399,7 @@ CONFIG_USB_NET_ZAURUS=m
# InfiniBand support
#
# CONFIG_INFINIBAND is not set
+# CONFIG_IPATH_CORE is not set
#
# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
@@ -1386,6 +1456,7 @@ CONFIG_INTEL_IOATDMA=m
#
# Firmware Drivers
#
+# CONFIG_EDD is not set
CONFIG_DELL_RBU=m
CONFIG_DCDBAS=m
@@ -1444,6 +1515,7 @@ CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
+# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
CONFIG_CONFIGFS_FS=m
@@ -1568,6 +1640,7 @@ CONFIG_DEBUG_FS=y
# CONFIG_FORCED_INLINING is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_DEBUG_RODATA is not set
+# CONFIG_IOMMU_DEBUG is not set
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_DEBUG_STACK_USAGE is not set
@@ -1610,40 +1683,6 @@ CONFIG_CRYPTO_TEST=m
#
# Hardware crypto devices
#
-CONFIG_XEN=y
-CONFIG_XEN_INTERFACE_VERSION=0x00030205
-
-#
-# XEN
-#
-CONFIG_XEN_PRIVILEGED_GUEST=y
-# CONFIG_XEN_UNPRIVILEGED_GUEST is not set
-CONFIG_XEN_PRIVCMD=y
-CONFIG_XEN_XENBUS_DEV=y
-CONFIG_XEN_BACKEND=y
-CONFIG_XEN_BLKDEV_BACKEND=y
-CONFIG_XEN_BLKDEV_TAP=y
-CONFIG_XEN_NETDEV_BACKEND=y
-# CONFIG_XEN_NETDEV_PIPELINED_TRANSMITTER is not set
-CONFIG_XEN_NETDEV_LOOPBACK=y
-CONFIG_XEN_PCIDEV_BACKEND=y
-CONFIG_XEN_PCIDEV_BACKEND_VPCI=y
-# CONFIG_XEN_PCIDEV_BACKEND_PASS is not set
-# CONFIG_XEN_PCIDEV_BACKEND_SLOT is not set
-# CONFIG_XEN_PCIDEV_BE_DEBUG is not set
-# CONFIG_XEN_TPMDEV_BACKEND is not set
-# CONFIG_XEN_BLKDEV_FRONTEND is not set
-# CONFIG_XEN_NETDEV_FRONTEND is not set
-CONFIG_XEN_SCRUB_PAGES=y
-CONFIG_XEN_DISABLE_SERIAL=y
-CONFIG_XEN_SYSFS=y
-CONFIG_XEN_COMPAT_030002_AND_LATER=y
-# CONFIG_XEN_COMPAT_030004_AND_LATER is not set
-# CONFIG_XEN_COMPAT_LATEST_ONLY is not set
-CONFIG_XEN_COMPAT=0x030002
-CONFIG_HAVE_IRQ_IGNORE_UNHANDLED=y
-CONFIG_NO_IDLE_HZ=y
-CONFIG_XEN_SMPBOOT=y
#
# Library routines
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