Re: PANIC: 2.6.21-rc7-mm2, Kernel access of bad area, sig: 11

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On Sat, 28 Apr 2007, Andrew Morton wrote:


On Sat, 28 Apr 2007 21:40:19 +0000 (GMT) William Heimbigner <[email protected]> wrote:


This bug occurs in linux-2.6.21-rc7-mm2, and does not occur in 2.6.21-rc7
ARCH is powerpc

dmesg output, captured via netconsole:
[    0.000000] Using PowerMac machine description
[    0.000000] Total memory = 128MB; using 256kB for hash table (at c7fc0000)
[    0.000000] Linux version 2.6.21-rc7-mm2 (root@console) (gcc version 4.1.1 (Gentoo 4.1.1-r3)) #3 SMP PREEMPT Sat Apr 28 14:29:54 CDT 2007
[    0.000000] Found UniNorth memory controller & host bridge @ 0xf8000000 revision: 0xc0
[    0.000000] Mapped at 0xfdfc0000
[    0.000000] Found a Pangea mac-io controller, rev: 0, mapped at 0xfdf40000
[    0.000000] PowerMac motherboard: iMac "Flower Power"


It ran OK on my G5.  Can you send the config please?


grep -v "is not set" .config:
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.21-rc7-mm2
# Sat Apr 28 14:04:08 2007
#
CONFIG_PPC_PM_NEEDS_RTC_LIB=y
CONFIG_PPC32=y
CONFIG_PPC_MERGE=y
CONFIG_MMU=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_IRQ_PER_CPU=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_ARCH_HAS_ILOG2_U32=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_PPC=y
CONFIG_EARLY_PRINTK=y
CONFIG_GENERIC_NVRAM=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_PPC_OF=y
CONFIG_PPC_UDBG_16550=y
CONFIG_GENERIC_TBSYNC=y
CONFIG_AUDIT_ARCH=y
CONFIG_GENERIC_BUG=y

#
# Processor support
#
CONFIG_CLASSIC32=y
CONFIG_6xx=y
CONFIG_PPC_FPU=y
CONFIG_ALTIVEC=y
CONFIG_PPC_STD_MMU=y
CONFIG_PPC_STD_MMU_32=y
CONFIG_SMP=y
CONFIG_NR_CPUS=2
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32

#
# General setup
#
CONFIG_LOCALVERSION=""
CONFIG_SWAP=y
CONFIG_SWAP_PREFETCH=y
CONFIG_SYSVIPC=y
CONFIG_IPC_NS=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_SYSFS_DEPRECATED=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_SYSCTL=y
CONFIG_EMBEDDED=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=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_PROC_SMAPS=y
CONFIG_PROC_CLEAR_REFS=y
CONFIG_PROC_PAGEMAP=y
CONFIG_PROC_KPAGEMAP=y
CONFIG_SLUB=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_KMOD=y
CONFIG_STOP_MACHINE=y

#
# Block layer
#
CONFIG_BLOCK=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_CFQ=y
CONFIG_DEFAULT_IOSCHED="cfq"

#
# Platform support
#
CONFIG_PPC_MULTIPLATFORM=y
CONFIG_PPC_CHRP=y
CONFIG_PPC_PMAC=y
CONFIG_PPC_NATIVE=y
CONFIG_MPIC=y
CONFIG_PPC_I8259=y
CONFIG_PPC_RTAS=y
CONFIG_RTAS_PROC=y
CONFIG_PPC_MPC106=y

#
# CPU Frequency support
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_STAT_DETAILS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_PMAC=y
CONFIG_TAU=y

#
# Kernel options
#
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
CONFIG_BINFMT_ELF=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_KEXEC=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_RESOURCES_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_ADAPTIVE_READAHEAD=y
CONFIG_DEBUG_READAHEAD=y
CONFIG_PROC_DEVICETREE=y
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_SYSFS_DEPRECATED=y
CONFIG_SECCOMP=y
CONFIG_ISA_DMA_API=y

#
# Bus options
#
CONFIG_ISA=y
CONFIG_ZONE_DMA=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_PPC_INDIRECT_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_PCCARD=y
CONFIG_PCMCIA=y
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_CARDBUS=y

#
# PC-card bridges
#
CONFIG_PCMCIA_PROBE=y

#
# Advanced setup
#

#
# Default settings for advanced configuration options are used
#
CONFIG_HIGHMEM_START=0xfe000000
CONFIG_LOWMEM_SIZE=0x30000000
CONFIG_KERNEL_START=0xc0000000
CONFIG_TASK_SIZE=0x80000000
CONFIG_BOOT_LOAD=0x00800000

#
# Networking
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=y
CONFIG_NET_KEY=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_FIB_HASH=y
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=y
CONFIG_INET_ESP=y
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_DEFAULT_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_PRIVACY=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_IPV6_SIT=m
CONFIG_NETWORK_SECMARK=y
CONFIG_NETFILTER=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK_ENABLED=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CT_ACCT=y
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NETFILTER_XTABLES=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m

#
# IP: Netfilter Configuration
#
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_IPRANGE=m
CONFIG_IP_NF_MATCH_TOS=m
CONFIG_IP_NF_MATCH_RECENT=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_MATCH_OWNER=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_SAME=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PROTO_GRE=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_NF_NAT_SIP=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_TOS=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m

#
# IPv6: Netfilter Configuration (EXPERIMENTAL)
#
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_OWNER=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_RAW=m

#
# QoS and/or fair queueing
#
CONFIG_NET_CLS_ROUTE=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m

#
# Wireless
#
CONFIG_WIRELESS_EXT=y
CONFIG_IEEE80211=m
CONFIG_IEEE80211_CRYPT_WEP=m
CONFIG_IEEE80211_CRYPT_CCMP=m
CONFIG_IEEE80211_CRYPT_TKIP=m
CONFIG_IEEE80211_SOFTMAC=m

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
CONFIG_PNP=y

#
# Protocols
#
CONFIG_ISAPNP=y

#
# Block devices
#
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_UB=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024

#
# Misc devices
#
CONFIG_BLINK=m
CONFIG_IDE=y
CONFIG_IDE_MAX_HWIFS=4
CONFIG_BLK_DEV_IDE=y

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDEFLOPPY=y
CONFIG_BLK_DEV_IDESCSI=y
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_BLK_DEV_PDC202XX_NEW=y
CONFIG_BLK_DEV_SL82C105=y
CONFIG_BLK_DEV_IDE_PMAC=y
CONFIG_BLK_DEV_IDE_PMAC_ATA100FIRST=y
CONFIG_BLK_DEV_IDEDMA_PMAC=y
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
CONFIG_SCSI=y
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
CONFIG_SCSI_FC_ATTRS=y

#
# SCSI low-level drivers
#
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=253
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
CONFIG_AIC7XXX_DEBUG_ENABLE=y
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC7XXX_OLD=m
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
CONFIG_SCSI_MESH=y
CONFIG_SCSI_MESH_SYNC_RATE=5
CONFIG_SCSI_MESH_RESET_DELAY_MS=4000
CONFIG_SCSI_MAC53C94=y

#
# PCMCIA SCSI adapter support
#

#
# Multi-device support (RAID and LVM)
#

#
# Fusion MPT device support
#

#
# IEEE 1394 (FireWire) support
#
CONFIG_IEEE1394=m

#
# Subsystem Options
#

#
# Device Drivers
#
CONFIG_IEEE1394_PCILYNX=m
CONFIG_IEEE1394_OHCI1394=m

#
# Protocol Drivers
#
CONFIG_IEEE1394_VIDEO1394=m
CONFIG_IEEE1394_SBP2=m
CONFIG_IEEE1394_ETH1394_ROM_ENTRY=y
CONFIG_IEEE1394_ETH1394=m
CONFIG_IEEE1394_DV1394=m
CONFIG_IEEE1394_RAWIO=m
CONFIG_I2O=y
CONFIG_I2O_LCT_NOTIFY_ON_CHANGES=y
CONFIG_I2O_EXT_ADAPTEC=y
CONFIG_I2O_CONFIG=y
CONFIG_I2O_CONFIG_OLD_IOCTL=y
CONFIG_I2O_BUS=y
CONFIG_I2O_BLOCK=y
CONFIG_I2O_SCSI=y
CONFIG_I2O_PROC=y

#
# Macintosh device drivers
#
CONFIG_ADB=y
CONFIG_ADB_CUDA=y
CONFIG_ADB_PMU=y
CONFIG_ADB_PMU_LED=y
CONFIG_ADB_PMU_LED_IDE=y
CONFIG_PMAC_APM_EMU=m
CONFIG_PMAC_MEDIABAY=y
CONFIG_PMAC_BACKLIGHT=y
CONFIG_PMAC_BACKLIGHT_LEGACY=y
CONFIG_ADB_MACIO=y
CONFIG_INPUT_ADBHID=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_THERM_ADT746X=m
CONFIG_WINDFARM=m

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_TUN=m

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_MACE=y
CONFIG_BMAC=y
CONFIG_SUNGEM=y

#
# Tulip family network device support
#
CONFIG_NETDEV_1000=y
CONFIG_NETDEV_10000=y
CONFIG_MLX4_DEBUG=y

#
# Wireless LAN
#

#
# PCMCIA network device support
#

#
# Wan interfaces
#
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
CONFIG_SLIP=m
CONFIG_SLHC=m
CONFIG_NETCONSOLE=y
CONFIG_NETPOLL=y
CONFIG_NETPOLL_RX=y
CONFIG_NETPOLL_TRAP=y
CONFIG_NET_POLL_CONTROLLER=y

#
# ISDN subsystem
#

#
# Telephony Support
#

#
# 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_EVDEV=y

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_INPUT_MOUSE=y
CONFIG_INPUT_MISC=y
CONFIG_INPUT_PCSPKR=y

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=m
CONFIG_SERIO_SERPORT=m
CONFIG_SERIO_PCIPS2=m
CONFIG_SERIO_LIBPS2=m
CONFIG_SERIO_RAW=m

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y

#
# Serial drivers
#
CONFIG_SERIAL_8250=m
CONFIG_SERIAL_8250_PCI=m
CONFIG_SERIAL_8250_PNP=m
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4

#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=m
CONFIG_SERIAL_PMACZILOG=m
CONFIG_SERIAL_OF_PLATFORM=m
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=32
CONFIG_HVC_DRIVER=y
CONFIG_HVC_RTAS=y

#
# IPMI
#
CONFIG_IPMI_HANDLER=y
CONFIG_IPMI_DEVICE_INTERFACE=y
CONFIG_IPMI_SI=y
CONFIG_IPMI_WATCHDOG=y
CONFIG_IPMI_POWEROFF=y

#
# Watchdog Cards
#
CONFIG_HW_RANDOM=m
CONFIG_NVRAM=y
CONFIG_GEN_RTC=y
CONFIG_AGP=y
CONFIG_AGP_UNINORTH=m
CONFIG_DRM=y
CONFIG_DRM_R128=y
CONFIG_DRM_RADEON=y

#
# PCMCIA character devices
#
CONFIG_RAW_DRIVER=m
CONFIG_MAX_RAW_DEVS=16

#
# TPM devices
#
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_CHARDEV=m

#
# I2C Algorithms
#
CONFIG_I2C_ALGOBIT=y

#
# I2C Hardware Bus support
#
CONFIG_I2C_ISA=m
CONFIG_I2C_POWERMAC=y

#
# Miscellaneous I2C Chip support
#

#
# SPI support
#

#
# Hardware Monitoring support
#
CONFIG_HWMON=y
CONFIG_HWMON_VID=m
CONFIG_SENSORS_ABITUGURU=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=m
CONFIG_SENSORS_ADM1031=m
CONFIG_SENSORS_ADM9240=m
CONFIG_SENSORS_AMS=m
CONFIG_SENSORS_AMS_PMU=y
CONFIG_SENSORS_AMS_I2C=y
CONFIG_SENSORS_ASB100=m
CONFIG_SENSORS_ATXP1=m
CONFIG_SENSORS_DS1621=m
CONFIG_SENSORS_F71805F=m
CONFIG_SENSORS_FSCHER=m
CONFIG_SENSORS_FSCPOS=m
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_LM63=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_MAX1619=m
CONFIG_SENSORS_MAX6650=m
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_VIA686A=m
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m

#
# Multifunction device drivers
#

#
# Multimedia devices
#
CONFIG_VIDEO_DEV=m
CONFIG_VIDEO_V4L1=y
CONFIG_VIDEO_V4L1_COMPAT=y
CONFIG_VIDEO_V4L2=y

#
# Video Capture Adapters
#

#
# Video Capture Adapters
#
CONFIG_VIDEO_HELPER_CHIPS_AUTO=y

#
# V4L USB devices
#

#
# Radio Adapters
#

#
# Digital Video Broadcasting Devices
#

#
# Graphics support
#
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_LCD_CLASS_DEVICE=m

#
# Display device support
#
CONFIG_DISPLAY_SUPPORT=y

#
# Display hardware drivers
#
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_DDC=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_MACMODES=y
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y

#
# Frame buffer hardware drivers
#
CONFIG_FB_OF=y
CONFIG_FB_CONTROL=y
CONFIG_FB_PLATINUM=y
CONFIG_FB_VALKYRIE=y
CONFIG_FB_CT65550=y
CONFIG_FB_RADEON=y
CONFIG_FB_RADEON_I2C=y
CONFIG_FB_RADEON_BACKLIGHT=y
CONFIG_FB_ATY128=y
CONFIG_FB_ATY128_BACKLIGHT=y

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=4096
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_FONTS=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_7x14=y
CONFIG_FONT_PEARL_8x8=y
CONFIG_FONT_ACORN_8x8=y
CONFIG_FONT_MINI_4x6=y
CONFIG_FONT_SUN8x16=y
CONFIG_FONT_SUN12x22=y
CONFIG_FONT_10x18=y

#
# Logo configuration
#
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y

#
# Sound
#
CONFIG_SOUND=y

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y

#
# Generic devices
#

#
# ISA devices
#

#
# PCI devices
#

#
# ALSA PowerMac devices
#
CONFIG_SND_POWERMAC=y

#
# Apple Onboard Audio driver
#
CONFIG_SND_AOA=m
CONFIG_SND_AOA_FABRIC_LAYOUT=m
CONFIG_SND_AOA_ONYX=m
CONFIG_SND_AOA_TAS=m
CONFIG_SND_AOA_TOONIE=m
CONFIG_SND_AOA_SOUNDBUS=m
CONFIG_SND_AOA_SOUNDBUS_I2S=m

#
# USB devices
#

#
# PCMCIA devices
#

#
# System on Chip audio support
#

#
# Open Sound System
#

#
# HID Devices
#
CONFIG_HID=y

#
# USB Input Devices
#
CONFIG_USB_HID=y
CONFIG_USB_HIDINPUT_POWERBOOK=y

#
# USB support
#
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DYNAMIC_MINORS=y

#
# USB Host Controller Drivers
#
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_SPLIT_ISO=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_ISP116X_HCD=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PPC_OF=y
CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
CONFIG_USB_OHCI_HCD_PPC_OF_LE=y
CONFIG_USB_OHCI_HCD_PCI=y
CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y
CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_SL811_HCD=y

#
# USB Device Class drivers
#
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=m

#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
#

#
# may also be needed; see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=y

#
# USB Input Devices
#

#
# USB Imaging devices
#

#
# USB Network Adapters
#
CONFIG_USB_MON=y

#
# USB port drivers
#

#
# USB Serial Converter support
#
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_CONSOLE=y
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_PL2303=y

#
# USB Miscellaneous drivers
#

#
# USB DSL modem support
#

#
# USB Gadget Support
#

#
# MMC/SD Card support
#

#
# LED devices
#
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_IDE_DISK=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=m

#
# InfiniBand support
#

#
# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
#

#
# Real Time Clock
#
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=m

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y

#
# I2C RTC drivers
#
CONFIG_RTC_DRV_DS1307=m
CONFIG_RTC_DRV_DS1672=m
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=m
CONFIG_RTC_DRV_X1205=m
CONFIG_RTC_DRV_PCF8563=m
CONFIG_RTC_DRV_PCF8583=m

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_DS1553=m
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_M48T86=m
CONFIG_RTC_DRV_V3020=m

#
# on-CPU RTC drivers
#

#
# DMA Engine support
#

#
# DMA Clients
#

#
# DMA Devices
#

#
# Auxiliary Display support
#

#
# Virtualization
#

#
# Userspace I/O
#

#
# File systems
#
CONFIG_EXT2_FS=m
CONFIG_EXT3_FS=m
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_JBD=m
CONFIG_FS_MBCACHE=m
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_PROC_INFO=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_FS_POSIX_ACL=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_DNOTIFY=y
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_RAMFS=y

#
# Miscellaneous filesystems
#
CONFIG_HFS_FS=m
CONFIG_HFSPLUS_FS=m

#
# Network File Systems
#
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_NFSD_TCP=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_RPCSEC_GSS_KRB5=y
CONFIG_SMB_FS=m

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y

#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_UTF8=m

#
# Distributed Lock Manager
#

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_CRC_CCITT=m
CONFIG_CRC32=y
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

#
# Instrumentation Support
#

#
# Kernel hacking
#
CONFIG_PRINTK_TIME=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_LOG_BUF_SHIFT=21
CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_PI_LIST=y
CONFIG_RT_MUTEX_TESTER=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_LIST=y
CONFIG_FORCED_INLINING=y
CONFIG_FAULT_INJECTION=y
CONFIG_FAILSLAB=y
CONFIG_FAIL_PAGE_ALLOC=y
CONFIG_FAIL_MAKE_REQUEST=y
CONFIG_FAULT_INJECTION_DEBUG_FS=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_DEBUGGER=y
CONFIG_XMON=y
CONFIG_XMON_DISASSEMBLY=y
CONFIG_BOOTX_TEXT=y

#
# Security options
#
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_MICHAEL_MIC=m


...
[   27.030444] input: PMU as /class/input/input4
[   27.052675] ReiserFS: hda4: found reiserfs format "3.6" with standard journal
[   27.058960] ReiserFS: hda4: using ordered data mode
[   27.078108] ReiserFS: hda4: journal params: device hda4, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
[   27.099024] ReiserFS: hda4: checking transaction log (hda4)
[   27.195147] ReiserFS: hda4: Using r5 hash to sort names
[   27.201477] VFS: Mounted root (reiserfs filesystem) readonly.
[   27.207715] Freeing unused kernel memory: 248k init
[  156.166766] Oops: Kernel access of bad area, sig: 11 [#1]
[  156.167014] PREEMPT SMP NR_CPUS=2 DEBUG_PAGEALLOC PowerMac
[  156.167267] Modules linked in: nfsd exportfs pmac_zilog serial_core ohci1394 ieee1394 uninorth_agp
[  156.167711] NIP: c0068ce4 LR: c0068cdc CTR: 00000000
[  156.167892] REGS: c0583a40 TRAP: 0300   Not tainted  (2.6.21-rc7-mm2)
[  156.168118] MSR: 00001032 <ME,IR,DR>  CR: 42202022  XER: 00000000
[  156.168467] DAR: 00000000, DSISR: 42000000
[  156.168617] TASK = c0550260[0] 'swapper' THREAD: c0582000 CPU: 0
[  156.168840] GPR00: 00000000 c0583af0 c0550260 00000783 c059bc88 00000001 c0488ec0 c059bc80
[  156.169272] GPR08: c0460713 c0488e77 00000000 c0488b70 00003da3 00000000 0023f96c c0590000
[  156.169705] GPR16: c0590000 0023f964 c0590000 00000000 00001032 00000000 c0583eb0 c0590000
[  156.170145] GPR24: c0583b18 00000000 00000000 00000000 c0583b28 c000a1e4 c0583b2c c059bc80
[  156.170594] NIP [c0068ce4] kallsyms_lookup+0x64/0xa4
[  156.170806] LR [c0068cdc] kallsyms_lookup+0x5c/0xa4
[  156.170997] Call Trace:
[  156.171093] [c0583af0] [c0068cb4] kallsyms_lookup+0x34/0xa4 (unreliable)
[  156.171384] --- Exception: c0583bb0 at 0xc0583ba0
[  156.171578]     LR = draw_byte+0x34/0x1d0
[  156.171723] [c0583b10] [c002ebd0] xmon_show_stack+0x2b8/0x330 (unreliable)
[  156.172017] [c0583c10] [c003053c] cmds+0xa20/0x1600
[  156.172235] [c0583ca0] [c0031448] xmon_core+0x32c/0x734
[  156.172452] [c0583d60] [c00319fc] xmon+0x2c/0x68
[  156.172647] [c0583e20] [c0031b40] xmon_irq+0x50/0x6c
[  156.172856] [c0583e40] [c0073828] handle_IRQ_event+0x5c/0xb0
[  156.173090] [c0583e60] [c00755dc] handle_fasteoi_irq+0xac/0x174
[  156.173333] [c0583e80] [c0006be4] do_IRQ+0xec/0x130
[  156.179644] [c0583ea0] [c0014fe8] ret_from_except+0x0/0x14
[  156.185827] --- Exception: 501 at cpu_idle<hand copied begins here>+0xfc/0x1dc
                    LR = cpu_idle+0xfc/0x1dc
                [c0583f60] [c000a24c] cpu_idle+0x164/0x1dc (unreliable)
                [c0583f80] [c0003cc4] rest_init+0x74/0x88
                [c0583fa0] [c050fb68] start_kernel+0x310/0x394
                [c0583ff0] [000037b4] 0x37b4

This occurs after pressing the programmer switch to generate an NMI.


Can you expand on this?  Do you mean that hitting the NMI switch is what
caused this crash?


Correct. The oops/panic occurs immediately after pushing the programmer switch.


Does a G5 have a programmer switch?  If so, how does this programmer
switch it?
I do not belive so. There is a way to trigger an NMI in OS X via setting boot-args="debug=0x4" in the nvram. If this is set, the power button becomes a programmer switch. Apple removed the programmers switch after the PowerMac G4. 
It looks something like:
_  _
 \/

inside a circle.


If you compiled with CONFIG_DEBUG_INFO could you please do

gdb vmlinux
(gdb) l *0xc0068ce4


(gdb) l *0xc0068ce4
0xc0068ce4 is in kallsyms_lookup (kallsyms.c:260).
255                     unsigned long pos;
256
257                     pos = get_symbol_pos(addr, symbolsize, offset);
258                     /* Grab name */
259                     kallsyms_expand_symbol(get_symbol_offset(pos), namebuf);
260                     *modname = NULL;
261                     return namebuf;
262             }
263
264             /* see if it's in a module */


Patches which touch kallsyms.c in -mm are:

extend-print_symbol-capability
simplify-module_get_kallsym-by-dropping-length-arg
simplify-kallsyms_lookup
fix-race-between-rmmod-and-cat-proc-kallsyms
fix-race-between-cat-proc-wchan-and-rmmod-et-al
fix-race-between-cat-proc-slab_allocators-and-rmmod
kallsyms-cleanup-use-seq_release_private-where-appropriate



William Heimbigner
[email protected]
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