repeated oops under load on SH4 system

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* repeated oops under load on SH4 system
@ 2008-11-04 12:31 CHIKAMA Masaki
  2008-11-10  8:06 ` Paul Mundt
                   ` (6 more replies)
  0 siblings, 7 replies; 8+ messages in thread
From: CHIKAMA Masaki @ 2008-11-04 12:31 UTC (permalink / raw)
  To: linux-sh

[-- Attachment #1: Type: text/plain, Size: 1774 bytes --]

Hello all.

I've got repeated oops message  under a load on kernel 2.6.26.7.
It happens once or twice per a week with the below message.

>Unable to handle kernel paging request at virtual address dfff0700
>Unable to handle kernel paging request at virtual address dfff1000
>Unable to handle kernel paging request at virtual address dfff0a00

I have been gotten this message from around kernel 2.6.23. I didn't
test before it.
My hardware is mach-landisk with attached .config.
The root file system is on nfs server.
Please let me know if  you need more information to investigating the problem.
Could somebody give me a hint to resolve the issue ?

Thanks in advance.


Full oops message is here.

Unable to handle kernel paging request at virtual address dfff0700
pc = 8c0f0dac
*pde = 8c2b6000
Oops: 0000 [#1]
Modules linked in:

 Pid : 9856, Comm:                kojid
 PC is at copy_page+0x10/0x4c
 PC  : 8c0f0dac SP  : 8feb9e64 SR  : 40008000 TEA : dfff0700    Not tainted
 R0  : 8fdb56e0 R1  : 296c9e48 R2  : 00000005 R3  : 2969350a
 R4  : 00000001 R5  : 7574735f R6  : 00000062 R7  : 29a6b958
 R8  : dfff1000 R9  : 8fdb5000 R10 : 8fdb5700 R11 : dfff0700
 R12 : 29a75380 R13 : 8c266100 R14 : 0fefc558
 MACH: 00000156 MACL: 00000000 GBR : 29945ba0 PR  : 8c00db7c

  Call trace:
  [<8c03dab2>] do_wp_page+0x20e/0x3cc
  [<8c03e7d4>] handle_mm_fault+0x3b8/0x460
  [<8c00cfb6>] do_page_fault+0xa6/0x2c0
  [<8c02243c>] autoremove_wake_function+0x0/0x28
  [<8c00e478>] update_curr+0x44/0x70
  [<8c00e8a6>] wakeup_preempt_entity+0x36/0x5c
  [<8c00e73a>] set_next_entity+0x1a/0x44
  [<8c1d22c0>] __sched_text_start+0x2a8/0x31c
  [<8c1d22da>] __sched_text_start+0x2c2/0x31c
  [<8c007128>] ret_from_exception+0x0/0xc
  [<8c007128>] ret_from_exception+0x0/0xc

-- 
CHIKAMA Masaki

[-- Attachment #2: landisk-config --]
[-- Type: application/octet-stream, Size: 34066 bytes --]

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.26.6
# Fri Oct 10 12:31:49 2008
#
CONFIG_SUPERH=y
CONFIG_SUPERH32=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_SYS_SUPPORTS_PCI=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_ARCH_NO_VIRT_TO_BUS=y
CONFIG_ARCH_SUPPORTS_AOUT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CGROUPS is not set
CONFIG_GROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_RT_GROUP_SCHED is not set
CONFIG_USER_SCHED=y
# CONFIG_CGROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
# CONFIG_NAMESPACES is not set
# CONFIG_BLK_DEV_INITRD is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_EMBEDDED=y
CONFIG_UID16=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_EXTRA_PASS=y
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_COMPAT_BRK=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
# CONFIG_MARKERS is not set
CONFIG_HAVE_OPROFILE=y
# CONFIG_HAVE_KPROBES is not set
# CONFIG_HAVE_KRETPROBES is not set
# CONFIG_HAVE_DMA_ATTRS is not set
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
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_BLOCK=y
# CONFIG_LBD is not set
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_LSF is not set
# CONFIG_BLK_DEV_BSG 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 is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_CLASSIC_RCU=y

#
# System type
#
CONFIG_CPU_SH4=y
# CONFIG_CPU_SUBTYPE_SH7619 is not set
# CONFIG_CPU_SUBTYPE_SH7203 is not set
# CONFIG_CPU_SUBTYPE_SH7206 is not set
# CONFIG_CPU_SUBTYPE_SH7263 is not set
# CONFIG_CPU_SUBTYPE_MXG is not set
# CONFIG_CPU_SUBTYPE_SH7705 is not set
# CONFIG_CPU_SUBTYPE_SH7706 is not set
# CONFIG_CPU_SUBTYPE_SH7707 is not set
# CONFIG_CPU_SUBTYPE_SH7708 is not set
# CONFIG_CPU_SUBTYPE_SH7709 is not set
# CONFIG_CPU_SUBTYPE_SH7710 is not set
# CONFIG_CPU_SUBTYPE_SH7712 is not set
# CONFIG_CPU_SUBTYPE_SH7720 is not set
# CONFIG_CPU_SUBTYPE_SH7721 is not set
# CONFIG_CPU_SUBTYPE_SH7750 is not set
# CONFIG_CPU_SUBTYPE_SH7091 is not set
# CONFIG_CPU_SUBTYPE_SH7750R is not set
# CONFIG_CPU_SUBTYPE_SH7750S is not set
# CONFIG_CPU_SUBTYPE_SH7751 is not set
CONFIG_CPU_SUBTYPE_SH7751R=y
# CONFIG_CPU_SUBTYPE_SH7760 is not set
# CONFIG_CPU_SUBTYPE_SH4_202 is not set
# CONFIG_CPU_SUBTYPE_SH7723 is not set
# CONFIG_CPU_SUBTYPE_SH7763 is not set
# CONFIG_CPU_SUBTYPE_SH7770 is not set
# CONFIG_CPU_SUBTYPE_SH7780 is not set
# CONFIG_CPU_SUBTYPE_SH7785 is not set
# CONFIG_CPU_SUBTYPE_SHX3 is not set
# CONFIG_CPU_SUBTYPE_SH7343 is not set
# CONFIG_CPU_SUBTYPE_SH7722 is not set
# CONFIG_CPU_SUBTYPE_SH7366 is not set
# CONFIG_CPU_SUBTYPE_SH5_101 is not set
# CONFIG_CPU_SUBTYPE_SH5_103 is not set

#
# Memory management options
#
CONFIG_QUICKLIST=y
CONFIG_MMU=y
CONFIG_PAGE_OFFSET=0x80000000
CONFIG_MEMORY_START=0x0c000000
CONFIG_MEMORY_SIZE=0x04000000
CONFIG_29BIT=y
CONFIG_VSYSCALL=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_MAX_ACTIVE_REGIONS=1
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_PAGE_SIZE_4KB=y
# CONFIG_PAGE_SIZE_8KB is not set
# CONFIG_PAGE_SIZE_64KB is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPARSEMEM_STATIC=y
# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_RESOURCES_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_NR_QUICK=2

#
# Cache configuration
#
# CONFIG_SH_DIRECT_MAPPED is not set
CONFIG_CACHE_WRITEBACK=y
# CONFIG_CACHE_WRITETHROUGH is not set
# CONFIG_CACHE_OFF is not set

#
# Processor features
#
CONFIG_CPU_LITTLE_ENDIAN=y
# CONFIG_CPU_BIG_ENDIAN is not set
CONFIG_SH_FPU=y
# CONFIG_SH_STORE_QUEUES is not set
CONFIG_CPU_HAS_INTEVT=y
CONFIG_CPU_HAS_SR_RB=y
CONFIG_CPU_HAS_PTEA=y
CONFIG_CPU_HAS_FPU=y

#
# Board support
#
# CONFIG_SH_7751_SYSTEMH is not set
# CONFIG_SH_SECUREEDGE5410 is not set
# CONFIG_SH_RTS7751R2D is not set
CONFIG_SH_LANDISK=y
# CONFIG_SH_TITAN is not set
# CONFIG_SH_LBOX_RE2 is not set

#
# Timer and clock configuration
#
CONFIG_SH_TMU=y
CONFIG_SH_TIMER_IRQ=16
CONFIG_SH_PCLK_FREQ=33333333
# CONFIG_TICK_ONESHOT is not set
# CONFIG_NO_HZ is not set
# CONFIG_HIGH_RES_TIMERS is not set
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set

#
# DMA support
#
CONFIG_SH_DMA_API=y
CONFIG_SH_DMA=y
CONFIG_NR_ONCHIP_DMA_CHANNELS=8
CONFIG_NR_DMA_CHANNELS_BOOL=y
CONFIG_NR_DMA_CHANNELS=8

#
# Companion Chips
#

#
# Additional SuperH Device Drivers
#
CONFIG_HEARTBEAT=y
CONFIG_PUSH_SWITCH=y

#
# Kernel features
#
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_KEXEC=y
# CONFIG_CRASH_DUMP is not set
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_GUSA=y
CONFIG_GUSA_RB=y

#
# Boot options
#
CONFIG_ZERO_PAGE_OFFSET=0x00001000
CONFIG_BOOT_LINK_OFFSET=0x00800000
# CONFIG_UBC_WAKEUP is not set
# CONFIG_CMDLINE_BOOL is not set

#
# Bus options
#
CONFIG_PCI=y
CONFIG_SH_PCIDMA_NONCOHERENT=y
CONFIG_PCI_AUTO=y
CONFIG_PCI_AUTO_UPDATE_RESOURCES=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_LEGACY is not set
CONFIG_PCCARD=y
# CONFIG_PCMCIA_DEBUG is not set
CONFIG_PCMCIA=y
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_PCMCIA_IOCTL=y
CONFIG_CARDBUS=y

#
# PC-card bridges
#
CONFIG_YENTA=y
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
# CONFIG_PD6729 is not set
# CONFIG_I82092 is not set
CONFIG_PCCARD_NONSTATIC=y
# CONFIG_HOTPLUG_PCI is not set

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set

#
# Networking
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_UNIX=y
CONFIG_XFRM=y
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_ASK_IP_FIB_HASH=y
# CONFIG_IP_FIB_TRIE is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_MULTIPLE_TABLES is not set
# CONFIG_IP_ROUTE_MULTIPATH is not set
# CONFIG_IP_ROUTE_VERBOSE is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP 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_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IP_VS is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y

#
# Core Netfilter Configuration
#
# CONFIG_NETFILTER_NETLINK_QUEUE is not set
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NETFILTER_XTABLES is not set

#
# IP: Netfilter Configuration
#
CONFIG_IP_NF_QUEUE=m
# CONFIG_IP_NF_IPTABLES is not set
# CONFIG_IP_NF_ARPTABLES is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
CONFIG_ATALK=m
# CONFIG_DEV_APPLETALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_SCHED is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set

#
# Wireless
#
# CONFIG_CFG80211 is not set
# CONFIG_WIRELESS_EXT is not set
# CONFIG_MAC80211 is not set
# CONFIG_IEEE80211 is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# 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_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 is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
# 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 is not set
# CONFIG_CHR_DEV_SG is not set
# 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 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_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# 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_SCSI_AIC94XX is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_STEX 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_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_SATA_PMP=y
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
# 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 is not set
# CONFIG_SATA_SX4 is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PCMCIA is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
CONFIG_PATA_PLATFORM=y
# CONFIG_PATA_SCH is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
# CONFIG_BLK_DEV_DM is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#

#
# Enable only one of the two stacks, unless you know what you are doing
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
# CONFIG_NETDEVICES_MULTIQUEUE is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_AX88796 is not set
# CONFIG_STNIC is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_SMC91X is not set
# CONFIG_NET_TULIP is not set
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_EEPRO100 is not set
# CONFIG_E100 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
CONFIG_8139CP=y
# CONFIG_8139TOO is not set
# CONFIG_R6040 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
CONFIG_NETDEV_1000=y
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_E1000E is not set
# CONFIG_E1000E_ENABLED is not set
# CONFIG_IP1000 is not set
# CONFIG_IGB 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_VIA_VELOCITY is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2 is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
CONFIG_NETDEV_10000=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_IXGBE is not set
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
# CONFIG_MYRI10GE is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_NIU is not set
# CONFIG_MLX4_CORE is not set
# CONFIG_TEHUTI is not set
# CONFIG_BNX2X is not set
# CONFIG_SFC is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set
# CONFIG_IWLWIFI_LEDS is not set

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
CONFIG_USB_PEGASUS=m
CONFIG_USB_RTL8150=m
# CONFIG_USB_USBNET is not set
# CONFIG_NET_PCMCIA is not set
# 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_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_DEVKMEM=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_SH_SCI=y
CONFIG_SERIAL_SH_SCI_NR_UARTS=2
CONFIG_SERIAL_SH_SCI_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
# CONFIG_CARDMAN_4000 is not set
# CONFIG_CARDMAN_4040 is not set
# CONFIG_IPWIRELESS is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
# CONFIG_THERMAL is not set
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set

#
# Sonics Silicon Backplane
#
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set

#
# Multimedia devices
#

#
# Multimedia core support
#
CONFIG_VIDEO_DEV=m
CONFIG_VIDEO_V4L2_COMMON=m
CONFIG_VIDEO_ALLOW_V4L1=y
CONFIG_VIDEO_V4L1_COMPAT=y
# CONFIG_DVB_CORE is not set
CONFIG_VIDEO_MEDIA=m

#
# Multimedia drivers
#
# CONFIG_MEDIA_ATTACH is not set
CONFIG_VIDEO_V4L2=m
CONFIG_VIDEO_V4L1=m
CONFIG_VIDEO_CAPTURE_DRIVERS=y
# CONFIG_VIDEO_ADV_DEBUG is not set
CONFIG_VIDEO_HELPER_CHIPS_AUTO=y
# CONFIG_VIDEO_VIVI is not set
# CONFIG_VIDEO_CPIA is not set
# CONFIG_VIDEO_CPIA2 is not set
CONFIG_V4L_USB_DRIVERS=y
# CONFIG_USB_VIDEO_CLASS is not set
CONFIG_VIDEO_USBVIDEO=m
CONFIG_USB_VICAM=m
CONFIG_USB_IBMCAM=m
CONFIG_USB_KONICAWC=m
# CONFIG_USB_QUICKCAM_MESSENGER is not set
# CONFIG_USB_ET61X251 is not set
CONFIG_USB_OV511=m
CONFIG_USB_SE401=m
CONFIG_USB_SN9C102=m
CONFIG_USB_STV680=m
# CONFIG_USB_ZC0301 is not set
CONFIG_USB_PWC=m
# CONFIG_USB_PWC_DEBUG is not set
# CONFIG_USB_ZR364XX is not set
# CONFIG_USB_STKWEBCAM is not set
# CONFIG_SOC_CAMERA is not set
CONFIG_RADIO_ADAPTERS=y
# CONFIG_RADIO_GEMTEK_PCI is not set
# CONFIG_RADIO_MAXIRADIO is not set
# CONFIG_RADIO_MAESTRO is not set
CONFIG_USB_DSBR=m
# CONFIG_USB_SI470X is not set
CONFIG_DAB=y
CONFIG_USB_DABUSB=m

#
# Graphics support
#
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_FONT_8x16=y

#
# Sound
#
CONFIG_SOUND=m

#
# Advanced Linux Sound Architecture
#
# CONFIG_SND is not set

#
# Open Sound System
#
CONFIG_SOUND_PRIME=m
# CONFIG_SOUND_TRIDENT is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HID_DEBUG is not set
# CONFIG_HIDRAW is not set

#
# USB Input Devices
#
CONFIG_USB_HID=m
# CONFIG_USB_HIDINPUT_POWERBOOK is not set
# CONFIG_HID_FF is not set
# CONFIG_USB_HIDDEV is not set

#
# USB HID Boot Protocol drivers
#
# CONFIG_USB_KBD is not set
# CONFIG_USB_MOUSE is not set
CONFIG_USB_SUPPORT=y
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
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
CONFIG_USB_PRINTER=m
# CONFIG_USB_WDM 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=y
CONFIG_USB_STORAGE_FREECOM=y
CONFIG_USB_STORAGE_ISD200=y
CONFIG_USB_STORAGE_DPCM=y
# CONFIG_USB_STORAGE_USBAT is not set
CONFIG_USB_STORAGE_SDDR09=y
CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_STORAGE_JUMPSHOT=y
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
CONFIG_USB_MON=y

#
# USB port drivers
#
CONFIG_USB_SERIAL=m
# CONFIG_USB_EZUSB is not set
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_AIRCABLE is not set
# CONFIG_USB_SERIAL_AIRPRIME is not set
# CONFIG_USB_SERIAL_ARK3116 is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_CH341 is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_CP2101 is not set
# CONFIG_USB_SERIAL_CYPRESS_M8 is not set
# CONFIG_USB_SERIAL_EMPEG is not set
CONFIG_USB_SERIAL_FTDI_SIO=m
# CONFIG_USB_SERIAL_FUNSOFT is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_EDGEPORT_TI is not set
# CONFIG_USB_SERIAL_GARMIN is not set
# CONFIG_USB_SERIAL_IPW is not set
# CONFIG_USB_SERIAL_IUU is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_KOBIL_SCT is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_MOS7720 is not set
# CONFIG_USB_SERIAL_MOS7840 is not set
# CONFIG_USB_SERIAL_MOTOROLA is not set
# CONFIG_USB_SERIAL_NAVMAN is not set
CONFIG_USB_SERIAL_PL2303=m
# CONFIG_USB_SERIAL_OTI6858 is not set
# CONFIG_USB_SERIAL_SPCP8X5 is not set
# CONFIG_USB_SERIAL_HP4X is not set
# CONFIG_USB_SERIAL_SAFE is not set
# CONFIG_USB_SERIAL_SIERRAWIRELESS is not set
# CONFIG_USB_SERIAL_TI is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OPTION is not set
# CONFIG_USB_SERIAL_OMNINET is not set
# CONFIG_USB_SERIAL_DEBUG is not set

#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
# CONFIG_USB_ADUTUX 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_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGET is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
CONFIG_USB_SISUSBVGA=m
CONFIG_USB_SISUSBVGA_CON=y
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_GADGET is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#
CONFIG_LEDS_LANDISK=y

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set
CONFIG_LEDS_TRIGGER_BITPAT=y
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_SH is not set
CONFIG_RTC_DRV_RS5C313=y
# CONFIG_UIO is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
# CONFIG_EXT3_FS_POSIX_ACL is not set
# CONFIG_EXT3_FS_SECURITY is not set
# CONFIG_EXT4DEV_FS is not set
CONFIG_JBD=y
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
# CONFIG_XFS_FS is not set
# CONFIG_OCFS2_FS is not set
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
# CONFIG_JOLIET is not set
# CONFIG_ZISOFS is not set
# 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=m
# CONFIG_NTFS_DEBUG is not set
CONFIG_NTFS_RW=y

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set

#
# 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_MINIX_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
CONFIG_ROMFS_FS=y
# CONFIG_SYSV_FS is not set
CONFIG_UFS_FS=m
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_UFS_DEBUG is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFS_V4 is not set
CONFIG_NFSD=m
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V3_ACL is not set
# CONFIG_NFSD_V4 is not set
CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
# CONFIG_SUNRPC_BIND34 is not set
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
CONFIG_SMB_FS=m
# CONFIG_SMB_NLS_DEFAULT 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

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# 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=y
# 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 is not set
# 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 is not set
# CONFIG_DLM is not set

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_KERNEL is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
# CONFIG_SAMPLES is not set
CONFIG_SH_STANDARD_BIOS=y
# CONFIG_EARLY_SCIF_CONSOLE is not set
# CONFIG_EARLY_PRINTK is not set
# CONFIG_SH_KGDB is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
# CONFIG_CRYPTO_MANAGER is not set
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
# CONFIG_CRYPTO_CBC is not set
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set

#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_LZO is not set
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_HIFN_795X is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_GENERIC_FIND_FIRST_BIT is not set
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: repeated oops under load on SH4 system
  2008-11-04 12:31 repeated oops under load on SH4 system CHIKAMA Masaki
@ 2008-11-10  8:06 ` Paul Mundt
  2008-11-10  8:11 ` Paul Mundt
                   ` (5 subsequent siblings)
  6 siblings, 0 replies; 8+ messages in thread
From: Paul Mundt @ 2008-11-10  8:06 UTC (permalink / raw)
  To: linux-sh

On Tue, Nov 04, 2008 at 09:31:44PM +0900, CHIKAMA Masaki wrote:
> Hello all.
> 
> I've got repeated oops message  under a load on kernel 2.6.26.7.
> It happens once or twice per a week with the below message.
> 
> >Unable to handle kernel paging request at virtual address dfff0700
> >Unable to handle kernel paging request at virtual address dfff1000
> >Unable to handle kernel paging request at virtual address dfff0a00
> 
> I have been gotten this message from around kernel 2.6.23. I didn't
> test before it.
> My hardware is mach-landisk with attached .config.
> The root file system is on nfs server.
> Please let me know if  you need more information to investigating the problem.
> Could somebody give me a hint to resolve the issue ?
> 
> Thanks in advance.
> 
This suggests you are getting a TLB miss on various fixmap entries. Based
on your call chain, these are related to the cache colouring in the page
copying. update_mmu_cache() specifically faults the translation in, so
you should not be making it all the way up to the TLB miss handler in the
first place. This points to something evicting the entry from the TLB
during your copy, which while it is not something I have seen in
practice, is interesting to know that it remains a possibility under
other workloads. A simple but expensive fix for this would be blowing out
the TLB and speculatively bumping up the UTLB replace boundary prior to
pre-faulting the fixmap translation. I'll look at this some more over the
next couple days and send you a patch for testing.

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: repeated oops under load on SH4 system
  2008-11-04 12:31 repeated oops under load on SH4 system CHIKAMA Masaki
  2008-11-10  8:06 ` Paul Mundt
@ 2008-11-10  8:11 ` Paul Mundt
  2008-11-10  8:30 ` Paul Mundt
                   ` (4 subsequent siblings)
  6 siblings, 0 replies; 8+ messages in thread
From: Paul Mundt @ 2008-11-10  8:11 UTC (permalink / raw)
  To: linux-sh

On Mon, Nov 10, 2008 at 05:06:23PM +0900, Paul Mundt wrote:
> On Tue, Nov 04, 2008 at 09:31:44PM +0900, CHIKAMA Masaki wrote:
> > Hello all.
> > 
> > I've got repeated oops message  under a load on kernel 2.6.26.7.
> > It happens once or twice per a week with the below message.
> > 
> > >Unable to handle kernel paging request at virtual address dfff0700
> > >Unable to handle kernel paging request at virtual address dfff1000
> > >Unable to handle kernel paging request at virtual address dfff0a00
> > 
> > I have been gotten this message from around kernel 2.6.23. I didn't
> > test before it.
> > My hardware is mach-landisk with attached .config.
> > The root file system is on nfs server.
> > Please let me know if  you need more information to investigating the problem.
> > Could somebody give me a hint to resolve the issue ?
> > 
> > Thanks in advance.
> > 
> This suggests you are getting a TLB miss on various fixmap entries. Based
> on your call chain, these are related to the cache colouring in the page
> copying. update_mmu_cache() specifically faults the translation in, so
> you should not be making it all the way up to the TLB miss handler in the
> first place. This points to something evicting the entry from the TLB
> during your copy, which while it is not something I have seen in
> practice, is interesting to know that it remains a possibility under
> other workloads. A simple but expensive fix for this would be blowing out
> the TLB and speculatively bumping up the UTLB replace boundary prior to
> pre-faulting the fixmap translation. I'll look at this some more over the
> next couple days and send you a patch for testing.

Now I remember where I saw this before.. try this patch:

http://marc.info/?l=linux-sh&m\x120400865707505&w=2

There was never any feedback on it, and I was not able to reproduce the
issues.

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: repeated oops under load on SH4 system
  2008-11-04 12:31 repeated oops under load on SH4 system CHIKAMA Masaki
  2008-11-10  8:06 ` Paul Mundt
  2008-11-10  8:11 ` Paul Mundt
@ 2008-11-10  8:30 ` Paul Mundt
  2008-11-10 10:38 ` Yoshihiro Shimoda
                   ` (3 subsequent siblings)
  6 siblings, 0 replies; 8+ messages in thread
From: Paul Mundt @ 2008-11-10  8:30 UTC (permalink / raw)
  To: linux-sh

On Mon, Nov 10, 2008 at 05:11:59PM +0900, Paul Mundt wrote:
> On Mon, Nov 10, 2008 at 05:06:23PM +0900, Paul Mundt wrote:
> > On Tue, Nov 04, 2008 at 09:31:44PM +0900, CHIKAMA Masaki wrote:
> > > Hello all.
> > > 
> > > I've got repeated oops message  under a load on kernel 2.6.26.7.
> > > It happens once or twice per a week with the below message.
> > > 
> > > >Unable to handle kernel paging request at virtual address dfff0700
> > > >Unable to handle kernel paging request at virtual address dfff1000
> > > >Unable to handle kernel paging request at virtual address dfff0a00
> > > 
> > > I have been gotten this message from around kernel 2.6.23. I didn't
> > > test before it.
> > > My hardware is mach-landisk with attached .config.
> > > The root file system is on nfs server.
> > > Please let me know if  you need more information to investigating the problem.
> > > Could somebody give me a hint to resolve the issue ?
> > > 
> > > Thanks in advance.
> > > 
> > This suggests you are getting a TLB miss on various fixmap entries. Based
> > on your call chain, these are related to the cache colouring in the page
> > copying. update_mmu_cache() specifically faults the translation in, so
> > you should not be making it all the way up to the TLB miss handler in the
> > first place. This points to something evicting the entry from the TLB
> > during your copy, which while it is not something I have seen in
> > practice, is interesting to know that it remains a possibility under
> > other workloads. A simple but expensive fix for this would be blowing out
> > the TLB and speculatively bumping up the UTLB replace boundary prior to
> > pre-faulting the fixmap translation. I'll look at this some more over the
> > next couple days and send you a patch for testing.
> 
> Now I remember where I saw this before.. try this patch:
> 
> http://marc.info/?l=linux-sh&m\x120400865707505&w=2
> 
> There was never any feedback on it, and I was not able to reproduce the
> issues.

Updated version, against current git:

---

 arch/sh/include/asm/pgtable.h |    6 ++++++
 arch/sh/mm/init.c             |   12 +++++++++---
 arch/sh/mm/pg-sh4.c           |   17 +++++++++++++++++
 3 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/arch/sh/include/asm/pgtable.h b/arch/sh/include/asm/pgtable.h
index 52220d7..b517ae0 100644
--- a/arch/sh/include/asm/pgtable.h
+++ b/arch/sh/include/asm/pgtable.h
@@ -148,6 +148,12 @@ extern void paging_init(void);
 extern void page_table_range_init(unsigned long start, unsigned long end,
 				  pgd_t *pgd);
 
+#if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_CPU_SH4) && defined(CONFIG_MMU)
+extern void kmap_coherent_init(void);
+#else
+#define kmap_coherent_init()	do { } while (0)
+#endif
+
 #include <asm-generic/pgtable.h>
 
 #endif /* __ASM_SH_PGTABLE_H */
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 4abf000..6cbef8c 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -137,6 +137,7 @@ void __init page_table_range_init(unsigned long start, unsigned long end,
 void __init paging_init(void)
 {
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
+	unsigned long vaddr;
 	int nid;
 
 	/* We don't need to map the kernel through the TLB, as
@@ -148,10 +149,15 @@ void __init paging_init(void)
 	 * check for a null value. */
 	set_TTB(swapper_pg_dir);
 
-	/* Populate the relevant portions of swapper_pg_dir so that
+	/*
+	 * Populate the relevant portions of swapper_pg_dir so that
 	 * we can use the fixmap entries without calling kmalloc.
-	 * pte's will be filled in by __set_fixmap(). */
-	page_table_range_init(FIXADDR_START, FIXADDR_TOP, swapper_pg_dir);
+	 * pte's will be filled in by __set_fixmap().
+	 */
+	vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
+	page_table_range_init(vaddr, 0, swapper_pg_dir);
+
+	kmap_coherent_init();
 
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 
diff --git a/arch/sh/mm/pg-sh4.c b/arch/sh/mm/pg-sh4.c
index 38870e0..2fe14da 100644
--- a/arch/sh/mm/pg-sh4.c
+++ b/arch/sh/mm/pg-sh4.c
@@ -7,6 +7,7 @@
  * Released under the terms of the GNU GPL v2.0.
  */
 #include <linux/mm.h>
+#include <linux/init.h>
 #include <linux/mutex.h>
 #include <linux/fs.h>
 #include <linux/highmem.h>
@@ -16,6 +17,20 @@
 
 #define CACHE_ALIAS (current_cpu_data.dcache.alias_mask)
 
+#define kmap_get_fixmap_pte(vaddr)                                     \
+	pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr))
+
+static pte_t *kmap_coherent_pte;
+
+void __init kmap_coherent_init(void)
+{
+	unsigned long vaddr;
+
+	/* cache the first coherent kmap pte */
+	vaddr = __fix_to_virt(FIX_CMAP_BEGIN);
+	kmap_coherent_pte = kmap_get_fixmap_pte(vaddr);
+}
+
 static inline void *kmap_coherent(struct page *page, unsigned long addr)
 {
 	enum fixed_addresses idx;
@@ -34,6 +49,8 @@ static inline void *kmap_coherent(struct page *page, unsigned long addr)
 
 	update_mmu_cache(NULL, vaddr, pte);
 
+	set_pte(kmap_coherent_pte - (FIX_CMAP_END - idx), pte);
+
 	return (void *)vaddr;
 }
 

^ permalink raw reply related	[flat|nested] 8+ messages in thread

* Re: repeated oops under load on SH4 system
  2008-11-04 12:31 repeated oops under load on SH4 system CHIKAMA Masaki
                   ` (2 preceding siblings ...)
  2008-11-10  8:30 ` Paul Mundt
@ 2008-11-10 10:38 ` Yoshihiro Shimoda
  2008-11-10 10:41 ` Paul Mundt
                   ` (2 subsequent siblings)
  6 siblings, 0 replies; 8+ messages in thread
From: Yoshihiro Shimoda @ 2008-11-10 10:38 UTC (permalink / raw)
  To: linux-sh

Paul Mundt wrote:
> On Mon, Nov 10, 2008 at 05:11:59PM +0900, Paul Mundt wrote:
>> On Mon, Nov 10, 2008 at 05:06:23PM +0900, Paul Mundt wrote:
>>> On Tue, Nov 04, 2008 at 09:31:44PM +0900, CHIKAMA Masaki wrote:
>>>> Hello all.
>>>>
>>>> I've got repeated oops message  under a load on kernel 2.6.26.7.
>>>> It happens once or twice per a week with the below message.
>>>>
>>>>> Unable to handle kernel paging request at virtual address dfff0700
>>>>> Unable to handle kernel paging request at virtual address dfff1000
>>>>> Unable to handle kernel paging request at virtual address dfff0a00
>>>> I have been gotten this message from around kernel 2.6.23. I didn't
>>>> test before it.
>>>> My hardware is mach-landisk with attached .config.
>>>> The root file system is on nfs server.
>>>> Please let me know if  you need more information to investigating the problem.
>>>> Could somebody give me a hint to resolve the issue ?
>>>>
>>>> Thanks in advance.
>>>>
>>> This suggests you are getting a TLB miss on various fixmap entries. Based
>>> on your call chain, these are related to the cache colouring in the page
>>> copying. update_mmu_cache() specifically faults the translation in, so
>>> you should not be making it all the way up to the TLB miss handler in the
>>> first place. This points to something evicting the entry from the TLB
>>> during your copy, which while it is not something I have seen in
>>> practice, is interesting to know that it remains a possibility under
>>> other workloads. A simple but expensive fix for this would be blowing out
>>> the TLB and speculatively bumping up the UTLB replace boundary prior to
>>> pre-faulting the fixmap translation. I'll look at this some more over the
>>> next couple days and send you a patch for testing.
>> Now I remember where I saw this before.. try this patch:
>>
>> http://marc.info/?l=linux-sh&m\x120400865707505&w=2
>>
>> There was never any feedback on it, and I was not able to reproduce the
>> issues.
> 
> Updated version, against current git:

I had a just similar problem today, too. When I used sh7785lcr board,
it output following log.
But a problem did not occur when I used this patch.
Thank you very much!

config:
CONFIG_USB_R8A66597_HCD=m
CONFIG_USB_STORAGE=m

log:
Badness at 8800cd7a [verbose debug info unavailable]

Pid : 2652, Comm:         runscript.sh
PC is at from_device+0x2e/0x7c
PC  : 8800cd7a SP  : 8fb1fcfc SR  : 400081f0 TEA : c002dae4    Not tainted
R0  : 80000000 R1  : 00000001 R2  : feedbeef R3  : ffffffff
R4  : dffef6e4 R5  : dffef6e4 R6  : 00000004 R7  : 0000000c
R8  : 80000000 R9  : 00000004 R10 : dffef6e4 R11 : 8fb1fe08
R12 : 883065c4 R13 : 8f834080 R14 : 8fb1fcfc
MACH: 00000000 MACL: 00000000 GBR : 29748450 PR  : 8800cd66

Call trace:
[<880060c6>] handle_unaligned_ins+0x102/0x1ac
[<8800651e>] handle_unaligned_access+0x3ae/0x3f2
[<8800ce30>] handle_trapped_io+0x68/0x94
[<8800e0bc>] do_page_fault+0x138/0x2f0
[<881b623c>] rh_timer_func+0x0/0x18
[<881b61fc>] usb_hcd_poll_rh_status+0x130/0x170
[<881b6246>] rh_timer_func+0xa/0x18
[<881b623c>] rh_timer_func+0x0/0x18
[<8803cca2>] __rcu_process_callbacks+0x126/0x1d4
[<8803cd68>] rcu_process_callbacks+0x18/0x38
[<8801aa32>] _local_bh_enable+0x42/0x5c
[<8801aae6>] __do_softirq+0x9a/0xcc
[<8801ab50>] do_softirq+0x38/0x70
[<8801aefa>] irq_exit+0x32/0x58
[<8801af00>] irq_exit+0x38/0x58
[<880070e0>] ret_from_exception+0x0/0x8
[<880070e0>] ret_from_exception+0x0/0x8
[<8814a626>] copy_page+0x12/0x4c
[<8800ea92>] copy_user_highpage+0xf2/0x18c
[<8801028c>] sub_preempt_count+0x0/0x74
[<8804be0a>] do_wp_page+0x296/0x490
[<8804c27e>] handle_mm_fault+0x27a/0x5c0
[<88251030>] __down_read+0x40/0x12c
[<8800e042>] do_page_fault+0xbe/0x2f0
[<88010114>] pick_next_task_fair+0x84/0xa8
[<880070e0>] ret_from_exception+0x0/0x8
[<8801fffa>] do_sigaction+0xde/0x158
[<8802001c>] do_sigaction+0x100/0x158
[<88022c52>] sys_rt_sigaction+0x4e/0x90
[<880070e0>] ret_from_exception+0x0/0x8
[<880070e0>] ret_from_exception+0x0/0x8

Thanks,
Yoshihiro Shimoda

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: repeated oops under load on SH4 system
  2008-11-04 12:31 repeated oops under load on SH4 system CHIKAMA Masaki
                   ` (3 preceding siblings ...)
  2008-11-10 10:38 ` Yoshihiro Shimoda
@ 2008-11-10 10:41 ` Paul Mundt
  2008-11-10 13:34 ` CHIKAMA Masaki
  2008-11-17 12:47 ` CHIKAMA Masaki
  6 siblings, 0 replies; 8+ messages in thread
From: Paul Mundt @ 2008-11-10 10:41 UTC (permalink / raw)
  To: linux-sh

On Mon, Nov 10, 2008 at 07:38:40PM +0900, Yoshihiro Shimoda wrote:
> Paul Mundt wrote:
> > On Mon, Nov 10, 2008 at 05:11:59PM +0900, Paul Mundt wrote:
> >> On Mon, Nov 10, 2008 at 05:06:23PM +0900, Paul Mundt wrote:
> >>> This suggests you are getting a TLB miss on various fixmap entries. Based
> >>> on your call chain, these are related to the cache colouring in the page
> >>> copying. update_mmu_cache() specifically faults the translation in, so
> >>> you should not be making it all the way up to the TLB miss handler in the
> >>> first place. This points to something evicting the entry from the TLB
> >>> during your copy, which while it is not something I have seen in
> >>> practice, is interesting to know that it remains a possibility under
> >>> other workloads. A simple but expensive fix for this would be blowing out
> >>> the TLB and speculatively bumping up the UTLB replace boundary prior to
> >>> pre-faulting the fixmap translation. I'll look at this some more over the
> >>> next couple days and send you a patch for testing.
> >> Now I remember where I saw this before.. try this patch:
> >>
> >> http://marc.info/?l=linux-sh&m\x120400865707505&w=2
> >>
> >> There was never any feedback on it, and I was not able to reproduce the
> >> issues.
> > 
> > Updated version, against current git:
> 
> I had a just similar problem today, too. When I used sh7785lcr board,
> it output following log.
> But a problem did not occur when I used this patch.
> Thank you very much!
> 
Interesting, I've been running on the same board without incident. Thanks
for testing, I'll add this to the 2.6.28 queue!

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: repeated oops under load on SH4 system
  2008-11-04 12:31 repeated oops under load on SH4 system CHIKAMA Masaki
                   ` (4 preceding siblings ...)
  2008-11-10 10:41 ` Paul Mundt
@ 2008-11-10 13:34 ` CHIKAMA Masaki
  2008-11-17 12:47 ` CHIKAMA Masaki
  6 siblings, 0 replies; 8+ messages in thread
From: CHIKAMA Masaki @ 2008-11-10 13:34 UTC (permalink / raw)
  To: linux-sh

2008/11/10 Paul Mundt <lethal@linux-sh.org>:
> On Mon, Nov 10, 2008 at 05:11:59PM +0900, Paul Mundt wrote:
>> On Mon, Nov 10, 2008 at 05:06:23PM +0900, Paul Mundt wrote:
>> > On Tue, Nov 04, 2008 at 09:31:44PM +0900, CHIKAMA Masaki wrote:
>> > > Hello all.
>> > >
>> > > I've got repeated oops message  under a load on kernel 2.6.26.7.
>> > > It happens once or twice per a week with the below message.
>> > >
>> > > >Unable to handle kernel paging request at virtual address dfff0700
>> > > >Unable to handle kernel paging request at virtual address dfff1000
>> > > >Unable to handle kernel paging request at virtual address dfff0a00
>> > >
>> > > I have been gotten this message from around kernel 2.6.23. I didn't
>> > > test before it.
>> > > My hardware is mach-landisk with attached .config.
>> > > The root file system is on nfs server.
>> > > Please let me know if  you need more information to investigating the problem.
>> > > Could somebody give me a hint to resolve the issue ?
>> > >
>> > > Thanks in advance.
>> > >
>> > This suggests you are getting a TLB miss on various fixmap entries. Based
>> > on your call chain, these are related to the cache colouring in the page
>> > copying. update_mmu_cache() specifically faults the translation in, so
>> > you should not be making it all the way up to the TLB miss handler in the
>> > first place. This points to something evicting the entry from the TLB
>> > during your copy, which while it is not something I have seen in
>> > practice, is interesting to know that it remains a possibility under
>> > other workloads. A simple but expensive fix for this would be blowing out
>> > the TLB and speculatively bumping up the UTLB replace boundary prior to
>> > pre-faulting the fixmap translation. I'll look at this some more over the
>> > next couple days and send you a patch for testing.
>>
>> Now I remember where I saw this before.. try this patch:
>>
>> http://marc.info/?l=linux-sh&m\x120400865707505&w=2
>>
>> There was never any feedback on it, and I was not able to reproduce the
>> issues.
>
> Updated version, against current git:

Thank you for your comment and patch.
I backport the patch to 2.6.26.7 and start the work that I have been.
I'll let you know in one or two weeks whether the patch fix my problem.

-- 
CHIKAMA Masaki

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: repeated oops under load on SH4 system
  2008-11-04 12:31 repeated oops under load on SH4 system CHIKAMA Masaki
                   ` (5 preceding siblings ...)
  2008-11-10 13:34 ` CHIKAMA Masaki
@ 2008-11-17 12:47 ` CHIKAMA Masaki
  6 siblings, 0 replies; 8+ messages in thread
From: CHIKAMA Masaki @ 2008-11-17 12:47 UTC (permalink / raw)
  To: linux-sh

2008/11/10 CHIKAMA Masaki <masaki.chikama@gmail.com>:

> Thank you for your comment and patch.
> I backport the patch to 2.6.26.7 and start the work that I have been.
> I'll let you know in one or two weeks whether the patch fix my problem.

One week passed and I don't see that error messages any more.
I ran the same(but not exact same) task on 5 hardwares and none of
them output the errors for the time being.
It seems that my problem was also fixed with your patch.
Thank you again.
-- 
CHIKAMA Masaki

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2008-11-17 12:47 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-11-04 12:31 repeated oops under load on SH4 system CHIKAMA Masaki
2008-11-10  8:06 ` Paul Mundt
2008-11-10  8:11 ` Paul Mundt
2008-11-10  8:30 ` Paul Mundt
2008-11-10 10:38 ` Yoshihiro Shimoda
2008-11-10 10:41 ` Paul Mundt
2008-11-10 13:34 ` CHIKAMA Masaki
2008-11-17 12:47 ` CHIKAMA Masaki

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