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    SubjectRe: Ingo's realtime_preempt patch causes kernel oops
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    Date
    I just CC'd Thomas Gleixner on this, because he does a lot of arm for
    the -rt patch, as well as included Ingo Molnar since he is the
    maintainer.

    On Tue, 2006-05-23 at 15:40 +0200, Yann.LEPROVOST@wavecom.fr wrote:
    > Hi all,
    >
    > I applied last Ingo Molnar's realtime_preempt patch (-rt23) on a vanilla
    > 2.6.16 kernel.
    > My architecture is an ARM based CSB637 evaluation board from Cogent.
    >
    > I obtain the following kernel oops :
    >
    > Uncompressing Linux............................................... done,
    > booting the kernel.
    > Linux version 2.6.16-rt23 (yleprovost@wmp-ylplinux) (gcc version 3.4.4) #1
    > PREEMPT Tue May 23 15:24:21 CEST 2006
    > CPU: ARM920Tid(wb) [41129200] revision 0 (ARMv4T)
    > Machine: Cogent CSB637
    > Warning: bad configuration page, trying to continue
    > Memory policy: ECC disabled, Data cache writeback
    > Clocks: CPU 184 MHz, master 46 MHz, main 3.686 MHz
    > CPU0: D VIVT write-back cache
    > CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
    > CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
    > Real-Time Preemption Support (C) 2004-2006 Ingo Molnar
    > Built 1 zonelists
    > Kernel command line: mem=32M console=ttyS0,38400 initrd=0x20410000,3145728
    > root=/dev/ram0 rw
    > WARNING: experimental RCU implementation.
    > AT91: 128 gpio irqs in 4 banks
    > PID hash table entries: 256 (order: 8, 4096 bytes)
    > Console: colour dummy device 80x30
    > Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
    > Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
    > Memory: 32MB = 32MB total
    > Memory: 27828KB available (1100K code, 324K data, 76K init)
    > Mount-cache hash table entries: 512
    > CPU: Testing write buffer coherency: ok
    > Unable to handle kernel NULL pointer dereference at virtual address
    > 00000040
    > pgd = c0004000
    > [00000040] *pgd=00000000
    > Internal error: Oops: 5 [#1]
    > Modules linked in:
    > CPU: 0
    > PC is at profile_tick+0x34/0xa4
    > LR is at timer_tick+0x1c/0xe4
    > pc : [<c0032724>] lr : [<c001fd34>] Not tainted
    > sp : c0409f04 ip : c0409f1c fp : c0409f18
    > r10: 00000000 r9 : 00000001 r8 : 00000000
    > r7 : 00000001 r6 : 00000000 r5 : 00000001 r4 : 00000000
    > r3 : 00000000 r2 : 000043ea r1 : 00000000 r0 : 00000000
    > Flags: nZCv IRQs on FIQs on Mode SVC_32 Segment kernel
    > Control: C000717F Table: 20004000 DAC: 00000017
    > Process IRQ 1 (pid: 2, stack limit = 0xc0408198)
    > Stack: (0xc0409f04 to 0xc040a000)
    > 9f00: 00000000 c016eaf0 c0409f34 c0409f1c c001fd34 c0032700
    > fefff000
    > 9f20: c016eaf0 00000000 c0409f50 c0409f38 c0025030 c001fd28 c0139a58
    > c0408000
    > 9f40: 00000000 c0409f80 c0409f54 c0053024 c0024fd4 00000000 00000000
    > c01320c0
    > 9f60: c0139a58 00000001 fffffffc 00000000 00000000 c0409fa0 c0409f84
    > c0053c80
    > 9f80: c0052fcc c0132040 c01320c0 c0405edc c0408000 c0409fc4 c0409fa4
    > c0053db0
    > 9fa0: c0053c30 00000031 c01320c0 c0408000 c0405edc c0053cdc c0409ff4
    > c0409fc8
    > 9fc0: c00463ac c0053cec 00000001 ffffffff ffffffff 00000000 00000000
    > 00000000
    > 9fe0: 00000000 00000000 00000000 c0409ff8 c00338e0 c00462cc 6fdb904a
    > ff3b1884
    > Backtrace:
    > [<c00326f0>] (profile_tick+0x0/0xa4) from [<c001fd34>]
    > (timer_tick+0x1c/0xe4)
    > r5 = C016EAF0 r4 = 00000000
    > [<c001fd18>] (timer_tick+0x0/0xe4) from [<c0025030>]
    > (at91rm9200_timer_interrupt+0x6c/0xbc)

    The above does look arm specific.

    > r6 = 00000000 r5 = C016EAF0 r4 = FEFFF000
    > [<c0024fc4>] (at91rm9200_timer_interrupt+0x0/0xbc) from [<c0053024>]
    > (handle_IRQ_event+0x68/0xf0)
    > r6 = 00000000 r5 = C0408000 r4 = C0139A58
    > [<c0052fbc>] (handle_IRQ_event+0x0/0xf0) from [<c0053c80>]
    > (thread_simple_irq+0x60/0xbc)
    > [<c0053c20>] (thread_simple_irq+0x0/0xbc) from [<c0053db0>]
    > (do_irqd+0xd4/0x278)
    > r7 = C0408000 r6 = C0405EDC r5 = C01320C0 r4 = C0132040
    > [<c0053cdc>] (do_irqd+0x0/0x278) from [<c00463ac>] (kthread+0xf0/0x120)
    > r7 = C0053CDC r6 = C0405EDC r5 = C0408000 r4 = C01320C0
    > [<c00462bc>] (kthread+0x0/0x120) from [<c00338e0>] (do_exit+0x0/0x8bc)
    > r8 = 00000000 r7 = 00000000 r6 = 00000000 r5 = 00000000
    > r4 = 00000000
    > Code: e5933000 e3530000 11a0e00f 11a0f003 (e5943040)
    > <6>note: IRQ 1[2] exited with preempt_count 1
    > BUG: scheduling while atomic: IRQ 1/0x00000001/2
    > caller is do_exit+0x838/0x8bc
    > prev->state: 2 != TASK_RUNNING??
    > IRQ 1/2[CPU#0]: BUG in __schedule at kernel/sched.c:3382
    >
    > < ..... Then kernel freezes .....>
    >
    > This appears only when CONFIG_PREEMPT_HARDIRQS is enabled.

    Thomas,

    The fault is at 0x40 and looking at profile_tick it calls
    user_mode(regs). user_mode(x) is defined in arm as
    (((regs)->ARM_cpsr & 0xf) == 0)

    And ARM_cpsr is uregs[16] So if arm has 4 byte words and regs was NULL,
    it would fault on 16*4 = 64 or 0x40

    It looks like the timer interrupt on this board is having a NULL regs
    passed to it when hard interrupts are threads. Which might mean that
    the timer interrupt is itself a thread.

    -- Steve


    > The last trace is obtained using CONFIG_RT_PREEMPT which forces
    > CONFIG_PREEMPT_HARDIRQS to "yes".
    > For others configurations, when PREEMPT_HARDIRQS is disabled, it works
    > great.
    >
    > It seems to be something dealing with bad irq returns when hardirq
    > serializing is enabled ?!?
    >
    > Has anyone had ever seen this oops before ?
    > Any clue to solve that ?
    >
    > Regards
    >
    > Yann Leprovost
    >
    >
    > Here is my current .config file :
    >
    > #
    > # Automatically generated make config: don't edit
    > # Linux kernel version: 2.6.16-rt23
    > # Tue May 23 15:18:53 2006
    > #
    > CONFIG_ARM=y
    > CONFIG_MMU=y
    > CONFIG_GENERIC_HARDIRQS=y
    > CONFIG_RWSEM_GENERIC_SPINLOCK=y
    > CONFIG_GENERIC_CALIBRATE_DELAY=y
    >
    > #
    > # Code maturity level options
    > #
    > CONFIG_EXPERIMENTAL=y
    > CONFIG_BROKEN_ON_SMP=y
    > CONFIG_LOCK_KERNEL=y
    > CONFIG_INIT_ENV_ARG_LIMIT=32
    >
    > #
    > # General setup
    > #
    > CONFIG_LOCALVERSION=""
    > CONFIG_LOCALVERSION_AUTO=y
    > # CONFIG_SWAP is not set
    > CONFIG_SYSVIPC=y
    > # CONFIG_BSD_PROCESS_ACCT is not set
    > CONFIG_SYSCTL=y
    > # CONFIG_IKCONFIG is not set
    > CONFIG_INITRAMFS_SOURCE=""
    > CONFIG_UID16=y
    > CONFIG_CC_OPTIMIZE_FOR_SIZE=y
    > # CONFIG_EMBEDDED is not set
    > CONFIG_KALLSYMS=y
    > # CONFIG_KALLSYMS_ALL is not set
    > # 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_RT_MUTEXES=y
    > CONFIG_FUTEX=y
    > CONFIG_EPOLL=y
    > CONFIG_SHMEM=y
    > CONFIG_CC_ALIGN_FUNCTIONS=0
    > CONFIG_CC_ALIGN_LABELS=0
    > CONFIG_CC_ALIGN_LOOPS=0
    > CONFIG_CC_ALIGN_JUMPS=0
    > 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 is not set
    > CONFIG_OBSOLETE_MODPARM=y
    > # CONFIG_MODVERSIONS is not set
    > # CONFIG_MODULE_SRCVERSION_ALL is not set
    > CONFIG_KMOD=y
    >
    > #
    > # Block layer
    > #
    >
    > #
    > # IO Schedulers
    > #
    > CONFIG_IOSCHED_NOOP=y
    > CONFIG_IOSCHED_AS=y
    > CONFIG_IOSCHED_DEADLINE=y
    > CONFIG_IOSCHED_CFQ=y
    > CONFIG_DEFAULT_AS=y
    > # CONFIG_DEFAULT_DEADLINE is not set
    > # CONFIG_DEFAULT_CFQ is not set
    > # CONFIG_DEFAULT_NOOP is not set
    > CONFIG_DEFAULT_IOSCHED="anticipatory"
    >
    > #
    > # System Type
    > #
    > # CONFIG_ARCH_CLPS7500 is not set
    > # CONFIG_ARCH_CLPS711X is not set
    > # CONFIG_ARCH_CO285 is not set
    > # CONFIG_ARCH_EBSA110 is not set
    > # CONFIG_ARCH_FOOTBRIDGE is not set
    > # CONFIG_ARCH_INTEGRATOR is not set
    > # CONFIG_ARCH_IOP3XX is not set
    > # CONFIG_ARCH_IXP4XX is not set
    > # CONFIG_ARCH_IXP2000 is not set
    > # CONFIG_ARCH_L7200 is not set
    > # CONFIG_ARCH_PXA is not set
    > # CONFIG_ARCH_RPC is not set
    > # CONFIG_ARCH_SA1100 is not set
    > # CONFIG_ARCH_S3C2410 is not set
    > # CONFIG_ARCH_SHARK is not set
    > # CONFIG_ARCH_LH7A40X is not set
    > # CONFIG_ARCH_OMAP is not set
    > # CONFIG_ARCH_VERSATILE is not set
    > # CONFIG_ARCH_REALVIEW is not set
    > # CONFIG_ARCH_IMX is not set
    > # CONFIG_ARCH_H720X is not set
    > # CONFIG_ARCH_AAEC2000 is not set
    > CONFIG_ARCH_AT91=y
    >
    > #
    > # Atmel AT91 System-on-Chip
    > #
    > CONFIG_ARCH_AT91RM9200=y
    >
    > #
    > # AT91RM9200 Board Type
    > #
    > # CONFIG_ARCH_AT91RM9200DK is not set
    > # CONFIG_MACH_AT91RM9200EK is not set
    > # CONFIG_MACH_CSB337 is not set
    > CONFIG_MACH_CSB637=y
    > # CONFIG_MACH_CARMEVA is not set
    > # CONFIG_MACH_KB9200 is not set
    > # CONFIG_MACH_ATEB9200 is not set
    > # CONFIG_MACH_KAFA is not set
    > # CONFIG_ARCH_AT91SAM9261 is not set
    >
    > #
    > # AT91 Feature Selections
    > #
    > CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
    >
    > #
    > # Processor Type
    > #
    > CONFIG_CPU_32=y
    > CONFIG_CPU_ARM920T=y
    > CONFIG_CPU_32v4=y
    > CONFIG_CPU_ABRT_EV4T=y
    > CONFIG_CPU_CACHE_V4WT=y
    > CONFIG_CPU_CACHE_VIVT=y
    > CONFIG_CPU_COPY_V4WB=y
    > CONFIG_CPU_TLB_V4WBI=y
    >
    > #
    > # Processor Features
    > #
    > # CONFIG_ARM_THUMB is not set
    > # CONFIG_CPU_ICACHE_DISABLE is not set
    > # CONFIG_CPU_DCACHE_DISABLE is not set
    > # CONFIG_CPU_DCACHE_WRITETHROUGH is not set
    >
    > #
    > # Bus support
    > #
    >
    > #
    > # PCCARD (PCMCIA/CardBus) support
    > #
    > CONFIG_PCCARD=y
    > # CONFIG_PCMCIA_DEBUG is not set
    > CONFIG_PCMCIA=y
    > CONFIG_PCMCIA_LOAD_CIS=y
    > CONFIG_PCMCIA_IOCTL=y
    >
    > #
    > # PC-card bridges
    > #
    > CONFIG_AT91_CF=y
    >
    > #
    > # Kernel Features
    > #
    > # CONFIG_PREEMPT_NONE is not set
    > # CONFIG_PREEMPT_VOLUNTARY is not set
    > # CONFIG_PREEMPT_DESKTOP is not set
    > CONFIG_PREEMPT_RT=y
    > CONFIG_PREEMPT=y
    > CONFIG_PREEMPT_SOFTIRQS=y
    > CONFIG_PREEMPT_HARDIRQS=y
    > CONFIG_PREEMPT_BKL=y
    > # CONFIG_CLASSIC_RCU is not set
    > CONFIG_PREEMPT_RCU=y
    > CONFIG_RCU_STATS=y
    > # CONFIG_NO_IDLE_HZ is not set
    > # CONFIG_AEABI is not set
    > # CONFIG_ARCH_DISCONTIGMEM_ENABLE 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 is not set
    > CONFIG_SPLIT_PTLOCK_CPUS=4096
    > # CONFIG_LEDS is not set
    > CONFIG_ALIGNMENT_TRAP=y
    >
    > #
    > # Boot options
    > #
    > CONFIG_ZBOOT_ROM_TEXT=0x0
    > CONFIG_ZBOOT_ROM_BSS=0x0
    > CONFIG_CMDLINE="mem=32M console=ttyS0,38400 initrd=0x20410000,3145728
    > root=/dev/ram0 rw"
    > # CONFIG_XIP_KERNEL is not set
    >
    > #
    > # Floating point emulation
    > #
    >
    > #
    > # At least one emulation must be selected
    > #
    > CONFIG_FPE_NWFPE=y
    > # CONFIG_FPE_NWFPE_XP is not set
    > # CONFIG_FPE_FASTFPE is not set
    >
    > #
    > # Userspace binary formats
    > #
    > CONFIG_BINFMT_ELF=y
    > # CONFIG_BINFMT_AOUT is not set
    > # CONFIG_BINFMT_MISC is not set
    > # CONFIG_ARTHUR is not set
    >
    > #
    > # Power management options
    > #
    > # CONFIG_PM is not set
    > # CONFIG_APM is not set
    >
    > #
    > # Networking
    > #
    > # CONFIG_NET is not set
    >
    > #
    > # Device Drivers
    > #
    >
    > #
    > # Generic Driver Options
    > #
    > CONFIG_STANDALONE=y
    > CONFIG_PREVENT_FIRMWARE_BUILD=y
    > CONFIG_FW_LOADER=y
    > # CONFIG_DEBUG_DRIVER is not set
    >
    > #
    > # Connector - unified userspace <-> kernelspace linker
    > #
    >
    > #
    > # Memory Technology Devices (MTD)
    > #
    > # CONFIG_MTD is not set
    >
    > #
    > # Parallel port support
    > #
    > # CONFIG_PARPORT is not set
    >
    > #
    > # Plug and Play support
    > #
    >
    > #
    > # Block devices
    > #
    > # CONFIG_BLK_DEV_COW_COMMON is not set
    > CONFIG_BLK_DEV_LOOP=y
    > # CONFIG_BLK_DEV_CRYPTOLOOP is not set
    > CONFIG_BLK_DEV_RAM=y
    > CONFIG_BLK_DEV_RAM_COUNT=16
    > CONFIG_BLK_DEV_RAM_SIZE=8192
    > CONFIG_BLK_DEV_INITRD=y
    > # CONFIG_CDROM_PKTCDVD is not set
    >
    > #
    > # ATA/ATAPI/MFM/RLL support
    > #
    > # CONFIG_IDE is not set
    >
    > #
    > # SCSI device support
    > #
    > # CONFIG_RAID_ATTRS is not set
    > CONFIG_SCSI=y
    > # CONFIG_SCSI_PROC_FS is not set
    >
    > #
    > # SCSI support type (disk, tape, CD-ROM)
    > #
    > # CONFIG_BLK_DEV_SD is not set
    > # 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 is not set
    > # CONFIG_SCSI_CONSTANTS is not set
    > # CONFIG_SCSI_LOGGING is not set
    >
    > #
    > # SCSI Transport Attributes
    > #
    > # CONFIG_SCSI_SPI_ATTRS is not set
    > # CONFIG_SCSI_FC_ATTRS is not set
    > # CONFIG_SCSI_SAS_ATTRS is not set
    >
    > #
    > # SCSI low-level drivers
    > #
    > # CONFIG_SCSI_SATA is not set
    > # CONFIG_SCSI_DEBUG is not set
    >
    > #
    > # PCMCIA SCSI adapter support
    > #
    > # CONFIG_PCMCIA_AHA152X is not set
    > # CONFIG_PCMCIA_FDOMAIN is not set
    > # CONFIG_PCMCIA_NINJA_SCSI is not set
    > # CONFIG_PCMCIA_QLOGIC is not set
    > # CONFIG_PCMCIA_SYM53C500 is not set
    >
    > #
    > # Multi-device support (RAID and LVM)
    > #
    > # CONFIG_MD is not set
    >
    > #
    > # Fusion MPT device support
    > #
    > # CONFIG_FUSION is not set
    >
    > #
    > # IEEE 1394 (FireWire) support
    > #
    >
    > #
    > # I2O device support
    > #
    >
    > #
    > # ISDN subsystem
    > #
    >
    > #
    > # Input device support
    > #
    > CONFIG_INPUT=y
    >
    > #
    > # 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_TSDEV 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_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_SERIAL_NONSTANDARD is not set
    >
    > #
    > # Serial drivers
    > #
    > # CONFIG_SERIAL_8250 is not set
    >
    > #
    > # Non-8250 serial port support
    > #
    > CONFIG_SERIAL_AT91=y
    > CONFIG_SERIAL_AT91_CONSOLE=y
    > # CONFIG_SERIAL_AT91_TTYAT is not set
    > CONFIG_SERIAL_CORE=y
    > CONFIG_SERIAL_CORE_CONSOLE=y
    > CONFIG_UNIX98_PTYS=y
    > CONFIG_LEGACY_PTYS=y
    > CONFIG_LEGACY_PTY_COUNT=256
    >
    > #
    > # IPMI
    > #
    > # CONFIG_IPMI_HANDLER is not set
    >
    > #
    > # Watchdog Cards
    > #
    > CONFIG_WATCHDOG=y
    > CONFIG_WATCHDOG_NOWAYOUT=y
    >
    > #
    > # Watchdog Device Drivers
    > #
    > # CONFIG_SOFT_WATCHDOG is not set
    > CONFIG_AT91_WATCHDOG=y
    > # CONFIG_NVRAM is not set
    > CONFIG_RTC=y
    > # CONFIG_RTC_HISTOGRAM is not set
    > # CONFIG_AT91_RTC is not set
    > # CONFIG_DTLK is not set
    > # CONFIG_R3964 is not set
    >
    > #
    > # Ftape, the floppy tape device driver
    > #
    >
    > #
    > # PCMCIA character devices
    > #
    > # CONFIG_SYNCLINK_CS is not set
    > # CONFIG_CARDMAN_4000 is not set
    > # CONFIG_CARDMAN_4040 is not set
    > # CONFIG_RAW_DRIVER is not set
    >
    > #
    > # TPM devices
    > #
    > # CONFIG_TCG_TPM is not set
    > # CONFIG_TELCLOCK is not set
    > CONFIG_AT91_SPI=y
    > CONFIG_AT91_SPIDEV=y
    >
    > #
    > # I2C support
    > #
    > # CONFIG_I2C is not set
    >
    > #
    > # SPI support
    > #
    > # CONFIG_SPI is not set
    > # CONFIG_SPI_MASTER is not set
    >
    > #
    > # Dallas's 1-wire bus
    > #
    > # CONFIG_W1 is not set
    >
    > #
    > # Hardware Monitoring support
    > #
    > # CONFIG_HWMON is not set
    > # CONFIG_HWMON_VID is not set
    >
    > #
    > # Misc devices
    > #
    >
    > #
    > # Multimedia Capabilities Port drivers
    > #
    >
    > #
    > # Multimedia devices
    > #
    > # CONFIG_VIDEO_DEV is not set
    >
    > #
    > # Digital Video Broadcasting Devices
    > #
    >
    > #
    > # Graphics support
    > #
    > # CONFIG_FB is not set
    >
    > #
    > # Console display driver support
    > #
    > # CONFIG_VGA_CONSOLE 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 is not set
    >
    > #
    > # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
    > #
    >
    > #
    > # USB Gadget Support
    > #
    > # CONFIG_USB_GADGET is not set
    >
    > #
    > # MMC/SD Card support
    > #
    > # CONFIG_MMC 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 is not set
    > # CONFIG_REISERFS_FS is not set
    > # CONFIG_JFS_FS is not set
    > # CONFIG_FS_POSIX_ACL is not set
    > # CONFIG_XFS_FS is not set
    > # CONFIG_MINIX_FS is not set
    > # CONFIG_ROMFS_FS is not set
    > CONFIG_INOTIFY=y
    > # CONFIG_QUOTA is not set
    > CONFIG_DNOTIFY=y
    > # 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 is not set
    > # CONFIG_UDF_FS is not set
    >
    > #
    > # DOS/FAT/NT Filesystems
    > #
    > # CONFIG_MSDOS_FS is not set
    > # CONFIG_VFAT_FS is not set
    > # CONFIG_NTFS_FS is not set
    >
    > #
    > # Pseudo filesystems
    > #
    > CONFIG_PROC_FS=y
    > CONFIG_SYSFS=y
    > CONFIG_TMPFS=y
    > # CONFIG_HUGETLB_PAGE is not set
    > CONFIG_RAMFS=y
    > # CONFIG_RELAYFS_FS 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=y
    > # 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
    >
    > #
    > # Partition Types
    > #
    > # CONFIG_PARTITION_ADVANCED is not set
    > CONFIG_MSDOS_PARTITION=y
    >
    > #
    > # Native Language Support
    > #
    > # CONFIG_NLS is not set
    >
    > #
    > # Profiling support
    > #
    > # CONFIG_PROFILING is not set
    >
    > #
    > # Kernel hacking
    > #
    > # CONFIG_PRINTK_TIME is not set
    > # CONFIG_PRINTK_IGNORE_LOGLEVEL is not set
    > # CONFIG_MAGIC_SYSRQ is not set
    > CONFIG_DEBUG_KERNEL=y
    > CONFIG_LOG_BUF_SHIFT=14
    > CONFIG_DETECT_SOFTLOCKUP=y
    > # CONFIG_SCHEDSTATS is not set
    > # CONFIG_DEBUG_SLAB is not set
    > CONFIG_DEBUG_PREEMPT=y
    > CONFIG_DEBUG_RT_MUTEXES=y
    > CONFIG_DEBUG_PI_LIST=y
    > # CONFIG_RT_MUTEX_TESTER is not set
    > CONFIG_WAKEUP_TIMING=y
    > # CONFIG_WAKEUP_LATENCY_HIST is not set
    > CONFIG_PREEMPT_TRACE=y
    > # CONFIG_CRITICAL_PREEMPT_TIMING is not set
    > # CONFIG_CRITICAL_IRQSOFF_TIMING is not set
    > CONFIG_LATENCY_TIMING=y
    > # CONFIG_LATENCY_TRACE is not set
    > # CONFIG_DEBUG_KOBJECT is not set
    > CONFIG_DEBUG_BUGVERBOSE=y
    > # CONFIG_DEBUG_INFO is not set
    > # CONFIG_DEBUG_FS is not set
    > # CONFIG_DEBUG_VM is not set
    > CONFIG_FORCED_INLINING=y
    > CONFIG_FRAME_POINTER=y
    > # CONFIG_RCU_TORTURE_TEST is not set
    > CONFIG_DEBUG_USER=y
    > # CONFIG_DEBUG_WAITQ is not set
    > # CONFIG_DEBUG_ERRORS is not set
    > CONFIG_DEBUG_LL=y
    > # CONFIG_DEBUG_ICEDCC is not set
    >
    > #
    > # Security options
    > #
    > # CONFIG_KEYS is not set
    > # CONFIG_SECURITY is not set
    >
    > #
    > # Cryptographic options
    > #
    > CONFIG_CRYPTO=y
    > # CONFIG_CRYPTO_HMAC is not set
    > # CONFIG_CRYPTO_NULL is not set
    > # CONFIG_CRYPTO_MD4 is not set
    > CONFIG_CRYPTO_MD5=y
    > # CONFIG_CRYPTO_SHA1 is not set
    > # CONFIG_CRYPTO_SHA256 is not set
    > # CONFIG_CRYPTO_SHA512 is not set
    > # CONFIG_CRYPTO_WP512 is not set
    > # CONFIG_CRYPTO_TGR192 is not set
    > CONFIG_CRYPTO_DES=y
    > # CONFIG_CRYPTO_BLOWFISH is not set
    > # CONFIG_CRYPTO_TWOFISH is not set
    > # CONFIG_CRYPTO_SERPENT is not set
    > # CONFIG_CRYPTO_AES is not set
    > # CONFIG_CRYPTO_CAST5 is not set
    > # CONFIG_CRYPTO_CAST6 is not set
    > # CONFIG_CRYPTO_TEA is not set
    > # CONFIG_CRYPTO_ARC4 is not set
    > # CONFIG_CRYPTO_KHAZAD is not set
    > # CONFIG_CRYPTO_ANUBIS is not set
    > # CONFIG_CRYPTO_DEFLATE is not set
    > # CONFIG_CRYPTO_MICHAEL_MIC is not set
    > # CONFIG_CRYPTO_CRC32C is not set
    > # CONFIG_CRYPTO_TEST is not set
    >
    > #
    > # Hardware crypto devices
    > #
    >
    > #
    > # Library routines
    > #
    > # CONFIG_CRC_CCITT is not set
    > # CONFIG_CRC16 is not set
    > CONFIG_CRC32=y
    > # CONFIG_LIBCRC32C is not set
    > CONFIG_ZLIB_INFLATE=y
    > CONFIG_PLIST=y
    >
    >
    > -
    > 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/
    --
    Steven Rostedt
    Senior Programmer
    Kihon Technologies
    (607)786-4830

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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      Last update: 2006-05-23 16:12    [W:7.690 / U:0.416 seconds]
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