Messages in this thread | | | Date | Thu, 13 Jul 2006 08:51:11 +0200 | From | Xavier Roche <> | Subject | io_submit() taking a long time to return ? |
| |
Hi folks,
We are trying to rewrite our I/O subsystem by replacing multithreaded aynchronous I/O (mmap, pread, pwrite) by asynchronous I/O based on the io_submit system call.
Our API exposes a 'prefetch' function, which starts an asynchronous read operation by calling the io_submit() function in the context of the calling thread, and then a standalone background thread is responsible for calling the io_getevents function and waking up the threads waiting for a read operation to complete.
By reading the aio documentation, we expected the io_submit call to always return immediately, but in our preliminary tests we noticed that sometimes this call can take a long time (more than 10 ms, even sometimes more than 30 ms !!). The time does not seem to be correlated to the size of the I/O, nor to the load of the machine. We observed it even with a single worker thread on an idle machine, with a 256 KB read size. However, this problem seems to appear more often when sending multiple io_submit in a row from a single thread.
We are working on a 2.6.17 kernel (Linux version 2.6.17-rc5-perfmon2 (root@ng172) (gcc version 3.4.5 (Gentoo 3.4.5, ssp-3.4.5-1.0, pie-8.7.9)) #8 SMP Fri Jun 16 21:23:53 CEST 2006, cf attached config below), running on a HP DL 385 machine with 2 AMD Opteron and 16 GB of memory. The I/O operations are read commands of a size ranging from 32 KB to 256 KB, on files ranging from 100 MB to 2 GB, opened with the O_DIRECT flag, on an ext3 filesystem.
config: -------
# # Automatically generated make config: don't edit # Linux kernel version: 2.6.17-rc5-perfmon2 # Fri Jun 16 21:22:47 2006 # CONFIG_X86_64=y CONFIG_64BIT=y CONFIG_X86=y CONFIG_SEMAPHORE_SLEEPERS=y CONFIG_MMU=y CONFIG_RWSEM_GENERIC_SPINLOCK=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_X86_CMPXCHG=y CONFIG_EARLY_PRINTK=y CONFIG_GENERIC_ISA_DMA=y CONFIG_GENERIC_IOMAP=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_DMI=y
# # Code maturity level options # CONFIG_EXPERIMENTAL=y CONFIG_LOCK_KERNEL=y CONFIG_INIT_ENV_ARG_LIMIT=32
# # General setup # CONFIG_LOCALVERSION="" CONFIG_LOCALVERSION_AUTO=y CONFIG_SWAP=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y # CONFIG_AUDIT is not set CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y # CONFIG_CPUSETS is not set CONFIG_RELAY=y CONFIG_INITRAMFS_SOURCE="" CONFIG_UID16=y CONFIG_VM86=y # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set # CONFIG_EMBEDDED is not set CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_SHMEM=y CONFIG_SLAB=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 # CONFIG_SLOB is not set
# # Loadable module support # CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_KMOD=y CONFIG_STOP_MACHINE=y
# # Block layer # CONFIG_LBD=y CONFIG_BLK_DEV_IO_TRACE=y # CONFIG_LSF is not set
# # IO Schedulers # CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=y CONFIG_IOSCHED_DEADLINE=y CONFIG_IOSCHED_CFQ=y # CONFIG_DEFAULT_AS is not set CONFIG_DEFAULT_DEADLINE=y # CONFIG_DEFAULT_CFQ is not set # CONFIG_DEFAULT_NOOP is not set CONFIG_DEFAULT_IOSCHED="deadline"
# # Processor type and features # CONFIG_X86_PC=y # CONFIG_X86_VSMP is not set CONFIG_MK8=y # CONFIG_MPSC is not set # CONFIG_GENERIC_CPU is not set CONFIG_X86_L1_CACHE_BYTES=64 CONFIG_X86_L1_CACHE_SHIFT=6 CONFIG_X86_INTERNODE_CACHE_BYTES=64 CONFIG_X86_TSC=y CONFIG_X86_GOOD_APIC=y # CONFIG_MICROCODE is not set CONFIG_X86_MSR=y CONFIG_X86_CPUID=y CONFIG_X86_IO_APIC=y CONFIG_X86_LOCAL_APIC=y CONFIG_MTRR=y CONFIG_SMP=y # CONFIG_SCHED_SMT is not set CONFIG_SCHED_MC=y CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set # CONFIG_PREEMPT_BKL is not set 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 is not set # CONFIG_DISCONTIGMEM_MANUAL is not set CONFIG_SPARSEMEM_MANUAL=y CONFIG_SPARSEMEM=y CONFIG_NEED_MULTIPLE_NODES=y CONFIG_HAVE_MEMORY_PRESENT=y # CONFIG_SPARSEMEM_STATIC is not set CONFIG_SPARSEMEM_EXTREME=y # CONFIG_MEMORY_HOTPLUG is not set CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_MIGRATION=y CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y CONFIG_NR_CPUS=4 # CONFIG_HOTPLUG_CPU is not set CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y CONFIG_GART_IOMMU=y CONFIG_SWIOTLB=y CONFIG_X86_MCE=y CONFIG_X86_MCE_INTEL=y CONFIG_X86_MCE_AMD=y # CONFIG_KEXEC is not set # CONFIG_CRASH_DUMP is not set CONFIG_PHYSICAL_START=0x200000 CONFIG_SECCOMP=y # CONFIG_HZ_100 is not set # CONFIG_HZ_250 is not set CONFIG_HZ_1000=y CONFIG_HZ=1000 # CONFIG_REORDER is not set
# # Hardware Performance Monitoring support # CONFIG_PERFMON=y CONFIG_X86_64_PERFMON_AMD=m CONFIG_X86_64_PERFMON_EM64T=m CONFIG_X86_64_PERFMON_EM64T_PEBS=m CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_ISA_DMA_API=y CONFIG_GENERIC_PENDING_IRQ=y
# # Power management options # CONFIG_PM=y CONFIG_PM_LEGACY=y # CONFIG_PM_DEBUG is not set
# # ACPI (Advanced Configuration and Power Interface) Support # CONFIG_ACPI=y CONFIG_ACPI_AC=y # CONFIG_ACPI_BATTERY is not set CONFIG_ACPI_BUTTON=y CONFIG_ACPI_VIDEO=y # CONFIG_ACPI_HOTKEY is not set CONFIG_ACPI_FAN=y CONFIG_ACPI_PROCESSOR=y CONFIG_ACPI_THERMAL=y CONFIG_ACPI_NUMA=y # CONFIG_ACPI_ASUS is not set # CONFIG_ACPI_IBM is not set # CONFIG_ACPI_TOSHIBA is not set CONFIG_ACPI_BLACKLIST_YEAR=0 CONFIG_ACPI_DEBUG=y CONFIG_ACPI_EC=y CONFIG_ACPI_POWER=y CONFIG_ACPI_SYSTEM=y CONFIG_X86_PM_TIMER=y # CONFIG_ACPI_CONTAINER is not set # CONFIG_ACPI_HOTPLUG_MEMORY is not set
# # CPU Frequency scaling # # CONFIG_CPU_FREQ is not set
# # Bus options (PCI etc.) # CONFIG_PCI=y CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y # CONFIG_PCIEPORTBUS is not set CONFIG_PCI_MSI=y
# # PCCARD (PCMCIA/CardBus) support # # CONFIG_PCCARD is not set
# # PCI Hotplug Support # # CONFIG_HOTPLUG_PCI is not set
# # Executable file formats / Emulations # CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_IA32_EMULATION=y # CONFIG_IA32_AOUT is not set CONFIG_COMPAT=y CONFIG_SYSVIPC_COMPAT=y
# # Networking # CONFIG_NET=y
# # Networking options # # CONFIG_NETDEBUG is not set CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set CONFIG_UNIX=y # CONFIG_NET_KEY is not set CONFIG_INET=y # CONFIG_IP_MULTICAST is not set # CONFIG_IP_ADVANCED_ROUTER is not set CONFIG_IP_FIB_HASH=y # CONFIG_IP_PNP is not set # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set # CONFIG_ARPD is not set # CONFIG_SYN_COOKIES is not set # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set # CONFIG_INET_IPCOMP is not set # CONFIG_INET_XFRM_TUNNEL is not set # CONFIG_INET_TUNNEL is not set CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set CONFIG_TCP_CONG_BIC=y # CONFIG_IPV6 is not set # CONFIG_INET6_XFRM_TUNNEL is not set # CONFIG_INET6_TUNNEL is not set # CONFIG_NETFILTER is not set
# # DCCP Configuration (EXPERIMENTAL) # # CONFIG_IP_DCCP is not set
# # SCTP Configuration (EXPERIMENTAL) # # CONFIG_IP_SCTP is not set
# # TIPC Configuration (EXPERIMENTAL) # # CONFIG_TIPC is not set # CONFIG_ATM is not set # CONFIG_BRIDGE is not set CONFIG_VLAN_8021Q=m # CONFIG_DECNET is not set # CONFIG_LLC2 is not set # CONFIG_IPX is not set # CONFIG_ATALK is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set # CONFIG_NET_DIVERT is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set
# # QoS and/or fair queueing # # CONFIG_NET_SCHED is not set
# # Network testing # # CONFIG_NET_PKTGEN is not set # CONFIG_HAMRADIO is not set # CONFIG_IRDA is not set # CONFIG_BT is not set # CONFIG_IEEE80211 is not set
# # Device Drivers #
# # Generic Driver Options # CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=m
# # Connector - unified userspace <-> kernelspace linker # # CONFIG_CONNECTOR is not set
# # Memory Technology Devices (MTD) # # CONFIG_MTD is not set
# # Parallel port support # # CONFIG_PARPORT is not set
# # Plug and Play support # CONFIG_PNP=y # CONFIG_PNP_DEBUG is not set
# # Protocols # # CONFIG_PNPACPI is not set
# # Block devices # CONFIG_BLK_DEV_FD=m # CONFIG_BLK_CPQ_DA is not set CONFIG_BLK_CPQ_CISS_DA=y # CONFIG_CISS_SCSI_TAPE 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_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_INITRD=y # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set
# # ATA/ATAPI/MFM/RLL support # CONFIG_IDE=y CONFIG_BLK_DEV_IDE=y
# # 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=y # CONFIG_IDEDISK_MULTI_MODE is not set CONFIG_BLK_DEV_IDECD=y # CONFIG_BLK_DEV_IDETAPE is not set # CONFIG_BLK_DEV_IDEFLOPPY is not set # CONFIG_BLK_DEV_IDESCSI is not set # CONFIG_IDE_TASK_IOCTL is not set
# # IDE chipset support/bugfixes # 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 CONFIG_BLK_DEV_GENERIC=y # 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=y # 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_SC1200 is not set # CONFIG_BLK_DEV_PIIX 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 is not set # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set CONFIG_IDEDMA_AUTO=y # CONFIG_BLK_DEV_HD is not set
# # SCSI device support # # CONFIG_RAID_ATTRS is not set CONFIG_SCSI=y CONFIG_SCSI_PROC_FS=y
# # SCSI support type (disk, tape, CD-ROM) # CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=m # CONFIG_CHR_DEV_OSST is not set CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=m # CONFIG_CHR_DEV_SCH is not set
# # Some SCSI devices (e.g. CD jukebox) support multiple LUNs # CONFIG_SCSI_MULTI_LUN=y CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y
# # SCSI Transport Attributes # CONFIG_SCSI_SPI_ATTRS=y # CONFIG_SCSI_FC_ATTRS is not set # CONFIG_SCSI_ISCSI_ATTRS is not set CONFIG_SCSI_SAS_ATTRS=y
# # SCSI low-level drivers # # CONFIG_ISCSI_TCP is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set # CONFIG_SCSI_AACRAID is not set # CONFIG_SCSI_AIC7XXX is not set # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_MEGARAID_NEWGEN is not set # CONFIG_MEGARAID_LEGACY is not set # CONFIG_MEGARAID_SAS is not set CONFIG_SCSI_SATA=y # CONFIG_SCSI_SATA_AHCI is not set # CONFIG_SCSI_SATA_SVW is not set # CONFIG_SCSI_ATA_PIIX is not set # CONFIG_SCSI_SATA_MV is not set CONFIG_SCSI_SATA_NV=y # CONFIG_SCSI_PDC_ADMA is not set # CONFIG_SCSI_SATA_QSTOR is not set # CONFIG_SCSI_SATA_PROMISE is not set # CONFIG_SCSI_SATA_SX4 is not set # CONFIG_SCSI_SATA_SIL is not set # CONFIG_SCSI_SATA_SIL24 is not set # CONFIG_SCSI_SATA_SIS is not set # CONFIG_SCSI_SATA_ULI is not set # CONFIG_SCSI_SATA_VIA is not set # CONFIG_SCSI_SATA_VITESSE is not set # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_EATA is not set # CONFIG_SCSI_FUTURE_DOMAIN is not set # CONFIG_SCSI_GDTH is not set CONFIG_SCSI_IPS=y # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set # CONFIG_SCSI_QLOGIC_1280 is not set # CONFIG_SCSI_QLA_FC is not set # CONFIG_SCSI_LPFC is not set # CONFIG_SCSI_DC395x is not set # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_DEBUG is not set
# # Multi-device support (RAID and LVM) # CONFIG_MD=y # CONFIG_BLK_DEV_MD is not set CONFIG_BLK_DEV_DM=y # CONFIG_DM_CRYPT is not set # CONFIG_DM_SNAPSHOT is not set # CONFIG_DM_MIRROR is not set # CONFIG_DM_ZERO is not set # CONFIG_DM_MULTIPATH is not set
# # Fusion MPT device support # CONFIG_FUSION=y CONFIG_FUSION_SPI=y # CONFIG_FUSION_FC is not set # CONFIG_FUSION_SAS is not set CONFIG_FUSION_MAX_SGE=128 CONFIG_FUSION_CTL=m
# # IEEE 1394 (FireWire) support # # CONFIG_IEEE1394 is not set
# # I2O device support # # CONFIG_I2O is not set
# # Network device support # CONFIG_NETDEVICES=y # CONFIG_DUMMY is not set CONFIG_BONDING=m # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set # CONFIG_NET_SB1000 is not set
# # ARCnet devices # # CONFIG_ARCNET is not set
# # PHY device support #
# # Ethernet (10 or 100Mbit) # # CONFIG_NET_ETHERNET is not set
# # Ethernet (1000 Mbit) # # CONFIG_ACENIC is not set # CONFIG_DL2K is not set CONFIG_E1000=m # CONFIG_E1000_NAPI is not set # CONFIG_E1000_DISABLE_PACKET_SPLIT is not set # CONFIG_NS83820 is not set # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set # CONFIG_R8169 is not set # CONFIG_SIS190 is not set # CONFIG_SKGE is not set # CONFIG_SKY2 is not set # CONFIG_SK98LIN is not set CONFIG_TIGON3=m CONFIG_BNX2=m
# # Ethernet (10000 Mbit) # # CONFIG_CHELSIO_T1 is not set # CONFIG_IXGB is not set # CONFIG_S2IO is not set
# # Token Ring devices # # CONFIG_TR is not set
# # Wireless LAN (non-hamradio) # # CONFIG_NET_RADIO is not set
# # Wan interfaces # # CONFIG_WAN is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set # CONFIG_NET_FC is not set # CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set
# # ISDN subsystem # # CONFIG_ISDN is not set
# # Telephony Support # # CONFIG_PHONE is not set
# # Input device support # CONFIG_INPUT=y
# # Userland interfaces # CONFIG_INPUT_MOUSEDEV=y CONFIG_INPUT_MOUSEDEV_PSAUX=y CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # CONFIG_INPUT_JOYDEV is not set # CONFIG_INPUT_TSDEV is not set # CONFIG_INPUT_EVDEV is not set # CONFIG_INPUT_EVBUG is not set
# # Input Device Drivers # CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y # CONFIG_KEYBOARD_SUNKBD is not set # CONFIG_KEYBOARD_LKKBD is not set # CONFIG_KEYBOARD_XTKBD is not set # CONFIG_KEYBOARD_NEWTON is not set # CONFIG_INPUT_MOUSE is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set
# # Hardware I/O ports # CONFIG_SERIO=y CONFIG_SERIO_I8042=y # CONFIG_SERIO_SERPORT is not set # CONFIG_SERIO_CT82C710 is not set # CONFIG_SERIO_PCIPS2 is not set CONFIG_SERIO_LIBPS2=y # CONFIG_SERIO_RAW is not set # CONFIG_GAMEPORT is not set
# # Character devices # CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y # CONFIG_SERIAL_NONSTANDARD is not set
# # Serial drivers # CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_PCI=y CONFIG_SERIAL_8250_PNP=y CONFIG_SERIAL_8250_NR_UARTS=4 CONFIG_SERIAL_8250_RUNTIME_UARTS=4 CONFIG_SERIAL_8250_EXTENDED=y # CONFIG_SERIAL_8250_MANY_PORTS is not set CONFIG_SERIAL_8250_SHARE_IRQ=y # CONFIG_SERIAL_8250_DETECT_IRQ is not set # CONFIG_SERIAL_8250_RSA is not set
# # Non-8250 serial port support # CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_JSM is not set CONFIG_UNIX98_PTYS=y # CONFIG_LEGACY_PTYS is not set
# # IPMI # CONFIG_IPMI_HANDLER=m # CONFIG_IPMI_PANIC_EVENT is not set CONFIG_IPMI_DEVICE_INTERFACE=m CONFIG_IPMI_SI=m # CONFIG_IPMI_WATCHDOG is not set # CONFIG_IPMI_POWEROFF is not set
# # Watchdog Cards # # CONFIG_WATCHDOG is not set CONFIG_HW_RANDOM=y CONFIG_NVRAM=y CONFIG_RTC=y # CONFIG_DTLK is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set
# # Ftape, the floppy tape device driver # CONFIG_AGP=y CONFIG_AGP_AMD64=y # CONFIG_AGP_INTEL is not set # CONFIG_AGP_VIA is not set # CONFIG_DRM is not set # CONFIG_MWAVE is not set # CONFIG_RAW_DRIVER is not set # CONFIG_HPET is not set CONFIG_HANGCHECK_TIMER=m
# # TPM devices # # CONFIG_TCG_TPM is not set # CONFIG_TELCLOCK is not set
# # I2C support # # CONFIG_I2C is not set
# # SPI support # CONFIG_SPI=y CONFIG_SPI_MASTER=y
# # SPI Master Controller Drivers # CONFIG_SPI_BITBANG=y
# # SPI Protocol Masters #
# # Dallas's 1-wire bus # # CONFIG_W1 is not set
# # Hardware Monitoring support # CONFIG_HWMON=y # CONFIG_HWMON_VID is not set CONFIG_SENSORS_F71805F=y CONFIG_SENSORS_HDAPS=y CONFIG_HWMON_DEBUG_CHIP=y
# # Misc devices # # CONFIG_IBM_ASM is not set
# # Multimedia devices # # CONFIG_VIDEO_DEV is not set CONFIG_VIDEO_V4L2=y
# # Digital Video Broadcasting Devices # # CONFIG_DVB is not set # CONFIG_USB_DABUSB is not set
# # Graphics support # # CONFIG_FB is not set # CONFIG_VIDEO_SELECT is not set
# # Console display driver support # CONFIG_VGA_CONSOLE=y # CONFIG_VGACON_SOFT_SCROLLBACK is not set CONFIG_DUMMY_CONSOLE=y
# # Sound # # CONFIG_SOUND is not set
# # USB support # CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB_ARCH_HAS_EHCI=y CONFIG_USB=y # CONFIG_USB_DEBUG is not set
# # Miscellaneous USB options # 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_OTG is not set
# # USB Host Controller Drivers # # CONFIG_USB_EHCI_HCD is not set # CONFIG_USB_ISP116X_HCD is not set CONFIG_USB_OHCI_HCD=m # CONFIG_USB_OHCI_BIG_ENDIAN is not set CONFIG_USB_OHCI_LITTLE_ENDIAN=y # CONFIG_USB_UHCI_HCD is not set # CONFIG_USB_SL811_HCD is not set
# # USB Device Class drivers # # CONFIG_USB_ACM is not set # CONFIG_USB_PRINTER is not set
# # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' #
# # may also be needed; see USB_STORAGE Help for more information # CONFIG_USB_STORAGE=m # CONFIG_USB_STORAGE_DEBUG is not set # CONFIG_USB_STORAGE_DATAFAB is not set # CONFIG_USB_STORAGE_FREECOM is not set # CONFIG_USB_STORAGE_ISD200 is not set # CONFIG_USB_STORAGE_DPCM is not set # CONFIG_USB_STORAGE_USBAT is not set # CONFIG_USB_STORAGE_SDDR09 is not set # CONFIG_USB_STORAGE_SDDR55 is not set # CONFIG_USB_STORAGE_JUMPSHOT is not set # CONFIG_USB_STORAGE_ALAUDA is not set # CONFIG_USB_LIBUSUAL is not set
# # USB Input Devices # CONFIG_USB_HID=y CONFIG_USB_HIDINPUT=y # CONFIG_USB_HIDINPUT_POWERBOOK is not set # CONFIG_HID_FF is not set # CONFIG_USB_HIDDEV is not set # CONFIG_USB_AIPTEK is not set # CONFIG_USB_WACOM is not set # CONFIG_USB_ACECAD is not set # CONFIG_USB_KBTAB is not set # CONFIG_USB_POWERMATE is not set # CONFIG_USB_TOUCHSCREEN is not set # CONFIG_USB_YEALINK is not set # CONFIG_USB_XPAD is not set # CONFIG_USB_ATI_REMOTE is not set # CONFIG_USB_ATI_REMOTE2 is not set # CONFIG_USB_KEYSPAN_REMOTE is not set # CONFIG_USB_APPLETOUCH is not set
# # USB Imaging devices # # CONFIG_USB_MDC800 is not set # CONFIG_USB_MICROTEK is not set
# # USB Network Adapters # # CONFIG_USB_CATC is not set # CONFIG_USB_KAWETH is not set # CONFIG_USB_PEGASUS is not set # CONFIG_USB_RTL8150 is not set # CONFIG_USB_USBNET is not set # CONFIG_USB_MON is not set
# # USB port drivers #
# # USB Serial Converter support # # CONFIG_USB_SERIAL is not set
# # USB Miscellaneous drivers # # CONFIG_USB_EMI62 is not set # CONFIG_USB_EMI26 is not set # CONFIG_USB_AUERSWALD is not set # CONFIG_USB_RIO500 is not set # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set # CONFIG_USB_LED is not set # CONFIG_USB_CYTHERM is not set # CONFIG_USB_PHIDGETKIT is not set # CONFIG_USB_PHIDGETSERVO is not set # CONFIG_USB_IDMOUSE is not set # CONFIG_USB_LD is not set # CONFIG_USB_TEST is not set
# # USB DSL modem support #
# # USB Gadget Support # # CONFIG_USB_GADGET is not set
# # MMC/SD Card support # # CONFIG_MMC is not set
# # LED devices # # CONFIG_NEW_LEDS is not set
# # LED drivers #
# # LED Triggers #
# # InfiniBand support # # CONFIG_INFINIBAND is not set # CONFIG_IPATH_CORE is not set
# # EDAC - error detection and reporting (RAS) (EXPERIMENTAL) # CONFIG_EDAC=y
# # Reporting subsystems # CONFIG_EDAC_DEBUG=y CONFIG_EDAC_MM_EDAC=y CONFIG_EDAC_E752X=y CONFIG_EDAC_POLL=y
# # Real Time Clock # # CONFIG_RTC_CLASS is not set
# # Firmware Drivers # # CONFIG_EDD is not set # CONFIG_DELL_RBU is not set # CONFIG_DCDBAS is not set
# # File systems # CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y # CONFIG_EXT2_FS_SECURITY is not set # CONFIG_EXT2_FS_XIP is not set CONFIG_EXT3_FS=y CONFIG_EXT3_FS_XATTR=y CONFIG_EXT3_FS_POSIX_ACL=y # CONFIG_EXT3_FS_SECURITY is not set CONFIG_JBD=y # CONFIG_JBD_DEBUG is not set CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y CONFIG_XFS_FS=y CONFIG_XFS_EXPORT=y # CONFIG_XFS_QUOTA is not set # CONFIG_XFS_SECURITY is not set CONFIG_XFS_POSIX_ACL=y # CONFIG_XFS_RT is not set # CONFIG_OCFS2_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set # CONFIG_INOTIFY is not set # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set CONFIG_FUSE_FS=m
# # CD-ROM/DVD Filesystems # CONFIG_ISO9660_FS=m CONFIG_JOLIET=y CONFIG_ZISOFS=y CONFIG_ZISOFS_FS=m # CONFIG_UDF_FS is not set
# # DOS/FAT/NT Filesystems # CONFIG_FAT_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_FAT_DEFAULT_CODEPAGE=437 CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" # CONFIG_NTFS_FS is not set
# # Pseudo filesystems # CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y CONFIG_TMPFS=y CONFIG_HUGETLBFS=y CONFIG_HUGETLB_PAGE=y CONFIG_RAMFS=y CONFIG_CONFIGFS_FS=m
# # Miscellaneous filesystems # # CONFIG_ADFS_FS is not set # CONFIG_AFFS_FS is not set # CONFIG_HFS_FS is not set # CONFIG_HFSPLUS_FS is not set # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set # CONFIG_CRAMFS is not set # CONFIG_VXFS_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set
# # Network File Systems # CONFIG_NFS_FS=m CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set # CONFIG_NFS_V4 is not set # CONFIG_NFS_DIRECTIO is not set CONFIG_NFSD=m CONFIG_NFSD_V3=y # CONFIG_NFSD_V3_ACL is not set # CONFIG_NFSD_V4 is not set CONFIG_NFSD_TCP=y CONFIG_LOCKD=m CONFIG_LOCKD_V4=y CONFIG_EXPORTFS=y CONFIG_NFS_COMMON=y CONFIG_SUNRPC=m # CONFIG_RPCSEC_GSS_KRB5 is not set # CONFIG_RPCSEC_GSS_SPKM3 is not set # CONFIG_SMB_FS is not set # CONFIG_CIFS is not set # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set # CONFIG_9P_FS is not set
# # Partition Types # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y
# # Native Language Support # CONFIG_NLS=y CONFIG_NLS_DEFAULT="iso8859-1" CONFIG_NLS_CODEPAGE_437=m # CONFIG_NLS_CODEPAGE_737 is not set # CONFIG_NLS_CODEPAGE_775 is not set CONFIG_NLS_CODEPAGE_850=m # CONFIG_NLS_CODEPAGE_852 is not set # CONFIG_NLS_CODEPAGE_855 is not set # CONFIG_NLS_CODEPAGE_857 is not set # CONFIG_NLS_CODEPAGE_860 is not set # CONFIG_NLS_CODEPAGE_861 is not set # CONFIG_NLS_CODEPAGE_862 is not set # CONFIG_NLS_CODEPAGE_863 is not set # CONFIG_NLS_CODEPAGE_864 is not set # CONFIG_NLS_CODEPAGE_865 is not set # CONFIG_NLS_CODEPAGE_866 is not set # CONFIG_NLS_CODEPAGE_869 is not set # CONFIG_NLS_CODEPAGE_936 is not set # CONFIG_NLS_CODEPAGE_950 is not set # CONFIG_NLS_CODEPAGE_932 is not set # CONFIG_NLS_CODEPAGE_949 is not set # CONFIG_NLS_CODEPAGE_874 is not set # CONFIG_NLS_ISO8859_8 is not set # CONFIG_NLS_CODEPAGE_1250 is not set # CONFIG_NLS_CODEPAGE_1251 is not set # CONFIG_NLS_ASCII is not set CONFIG_NLS_ISO8859_1=m # CONFIG_NLS_ISO8859_2 is not set # CONFIG_NLS_ISO8859_3 is not set # CONFIG_NLS_ISO8859_4 is not set # CONFIG_NLS_ISO8859_5 is not set # CONFIG_NLS_ISO8859_6 is not set # CONFIG_NLS_ISO8859_7 is not set # CONFIG_NLS_ISO8859_9 is not set # CONFIG_NLS_ISO8859_13 is not set # CONFIG_NLS_ISO8859_14 is not set # CONFIG_NLS_ISO8859_15 is not set # CONFIG_NLS_KOI8_R is not set # CONFIG_NLS_KOI8_U is not set CONFIG_NLS_UTF8=m
# # Instrumentation Support # CONFIG_PROFILING=y CONFIG_OPROFILE=m # CONFIG_KPROBES is not set
# # Kernel hacking # # CONFIG_PRINTK_TIME is not set CONFIG_MAGIC_SYSRQ=y # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=15 CONFIG_DEBUG_FS=y # CONFIG_UNWIND_INFO is not set
# # Security options # # CONFIG_KEYS is not set # CONFIG_SECURITY is not set
# # Cryptographic options # # CONFIG_CRYPTO is not set
# # Hardware crypto devices #
# # Library routines # CONFIG_CRC_CCITT=m CONFIG_CRC16=m CONFIG_CRC32=y CONFIG_LIBCRC32C=m CONFIG_ZLIB_INFLATE=m
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |