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bug in slab.c and .config

To: "linux-mips" <linux-mips@linux-mips.org>
Subject: bug in slab.c and .config
From: "xuhaoz" <xuhaoz@neonetech.com>
Date: Wed, 1 Sep 2004 18:08:27 +0800
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
  hi all:

        recently, i met a odd problem and i need your help .

        when i run "make menuconfig" , the system output a .config for me , 
it's image is ok to use. the .config is like this: 

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_MIPS=y
CONFIG_MIPS32=y
CONFIG_UCLINUX=y

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# Machine selection
#
# CONFIG_SIMULATOR is not set
# CONFIG_ACER_PICA_61 is not set
# CONFIG_MIPS_PB1000 is not set
# CONFIG_MIPS_PB1500 is not set
# CONFIG_ALGOR_P4032 is not set
# CONFIG_BAGET_MIPS is not set
# CONFIG_MIPS_COBALT is not set
# CONFIG_DECSTATION is not set
# CONFIG_MIPS_EV64120 is not set
# CONFIG_MIPS_EV96100 is not set
# CONFIG_MIPS_IVR is not set
# CONFIG_HP_LASERJET is not set
# CONFIG_MIPS_ITE8172 is not set
CONFIG_OMNI_BOARD=y
CONFIG_OMNI_TYPE01=y
# CONFIG_MIPS_ATLAS is not set
# CONFIG_MIPS_MAGNUM_4000 is not set
# CONFIG_MIPS_MALTA is not set
# CONFIG_MOMENCO_OCELOT is not set
# CONFIG_DDB5074 is not set
# CONFIG_DDB5476 is not set
# CONFIG_DDB5477 is not set
# CONFIG_NEC_OSPREY is not set
# CONFIG_OLIVETTI_M700 is not set
# CONFIG_NINO is not set
# CONFIG_SGI_IP22 is not set
# CONFIG_SIBYTE_SB1250 is not set
# CONFIG_SNI_RM200_PCI is not set
# CONFIG_TOSHIBA_JMR3927 is not set
# CONFIG_HIGHMEM is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
CONFIG_NEW_IRQ=y
CONFIG_NEW_TIME_C=y
# CONFIG_MIPS_AU1000 is not set

#
# CPU selection
#
CONFIG_CPU_R3000=y
# CONFIG_CPU_TX39XX is not set
# CONFIG_CPU_R6000 is not set
# CONFIG_CPU_VR41XX is not set
# CONFIG_CPU_R4300 is not set
# CONFIG_CPU_R4X00 is not set
# CONFIG_CPU_TX49XX is not set
# CONFIG_CPU_R5000 is not set
# CONFIG_CPU_R5432 is not set
# CONFIG_CPU_RM7000 is not set
# CONFIG_CPU_NEVADA is not set
# CONFIG_CPU_R10000 is not set
# CONFIG_CPU_SB1 is not set
# CONFIG_CPU_MIPS32 is not set
# CONFIG_CPU_MIPS64 is not set
# CONFIG_CPU_ADVANCED is not set
# CONFIG_CPU_HAS_LLSC is not set
# CONFIG_CPU_HAS_LLDSCD is not set
# CONFIG_CPU_HAS_WB is not set

#
# General setup
#
CONFIG_CPU_LITTLE_ENDIAN=y
# CONFIG_NET is not set
# CONFIG_PCI is not set
# CONFIG_ISA is not set
# CONFIG_EISA is not set
# CONFIG_TC is not set
# CONFIG_MCA is not set
# CONFIG_SBUS is not set
# CONFIG_HOTPLUG is not set
# CONFIG_PCMCIA is not set
# CONFIG_HOTPLUG_PCI is not set
# CONFIG_SYSVIPC is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_SYSCTL is not set
CONFIG_KCORE_ELF=y
# CONFIG_KCORE_AOUT is not set
CONFIG_BINFMT_FLAT=y
# CONFIG_BINFMT_ZFLAT is not set
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Plug and Play configuration
#
# CONFIG_PNP is not set
# CONFIG_ISAPNP is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_CISS_SCSI_TAPE is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_BLK_DEV_RAMDISK_DATA is not set
# CONFIG_BLK_DEV_BLKMEM is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Telephony Support
#
# CONFIG_PHONE is not set
# CONFIG_PHONE_IXJ is not set
# CONFIG_PHONE_IXJ_PCMCIA is not set

#
# SCSI support
#
# CONFIG_SCSI is not set

#
# Amateur Radio support
#
# CONFIG_HAMRADIO is not set

#
# Character devices
#
# CONFIG_LEDMAN is not set
# CONFIG_VT is not set
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_UNIX98_PTYS is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
CONFIG_WATCHDOG=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_SC520_WDT is not set
# CONFIG_PCWATCHDOG is not set
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
# CONFIG_WAFER_WDT is not set
# CONFIG_I810_TCO is not set
# CONFIG_MIXCOMWD is not set
# CONFIG_60XX_WDT is not set
# CONFIG_SC1200_WDT is not set
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_W83877F_WDT is not set
# CONFIG_WDT is not set
# CONFIG_WDTPCI is not set
# CONFIG_MACHZ_WDT is not set
# CONFIG_NVRAM is not set
CONFIG_RTC=y
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_JBD_DEBUG is not set
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
CONFIG_RAMFS=y
# CONFIG_ISO9660_FS is not set
# CONFIG_JOLIET is not set
# CONFIG_ZISOFS is not set
CONFIG_MINIX_FS=y
# CONFIG_VXFS_FS is not set
CONFIG_NTFS_FS=y
CONFIG_NTFS_RW=y
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
CONFIG_DEVFS_FS=y
CONFIG_DEVFS_MOUNT=y
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
CONFIG_ROMFS_FS=y
# CONFIG_EXT2_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_SMB_FS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_DEFAULT="n"
# CONFIG_NLS_CODEPAGE_437 is not set
# 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 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_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

#
# Sound
#
# CONFIG_SOUND is not set

#
# USB support
#
# CONFIG_USB is not set

#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Kernel hacking
#
CONFIG_CROSSCOMPILE=y
# CONFIG_REMOTE_DEBUG is not set
# CONFIG_GDB_CONSOLE is not set
# CONFIG_DEBUG is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_MIPS_UNCACHED is not set
# CONFIG_CONTIGUOUS_PAGE_ALLOC is not set

    then  i modified the config by again running "make menuconfig", the system 
output .config for me again, but this time the 
        image can't run , it report a BUG in slab.c in kmem_cache_creat 
function ,exactly live at this:
                                                
                                down(&cache_chain_sem)
                                {
                                        struct list_head *p;
                                        list_for_each(p,&cache_chain){
                                                kmem_cache_t *pc = 
list_entry(p,kmem_cache_t,next);
                                                if(!strcmp(pc->name,name))
                                                        BUG();
                                        }
                                }

        i don't know why, and wonder what's the difference between the two 
.config that affect the image? 

        the modified .config is like this :

                 #
# Automatically generated by make menuconfig: don't edit
#
CONFIG_MIPS=y
CONFIG_MIPS32=y
CONFIG_UCLINUX=y

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# Machine selection
#
# CONFIG_SIMULATOR is not set
# CONFIG_ACER_PICA_61 is not set
# CONFIG_MIPS_PB1000 is not set
# CONFIG_MIPS_PB1500 is not set
# CONFIG_ALGOR_P4032 is not set
# CONFIG_BAGET_MIPS is not set
# CONFIG_MIPS_COBALT is not set
# CONFIG_DECSTATION is not set
# CONFIG_MIPS_EV64120 is not set
# CONFIG_MIPS_EV96100 is not set
# CONFIG_MIPS_IVR is not set
# CONFIG_HP_LASERJET is not set
# CONFIG_MIPS_ITE8172 is not set
CONFIG_OMNI_BOARD=y
CONFIG_OMNI_TYPE01=y
# CONFIG_MIPS_ATLAS is not set
# CONFIG_MIPS_MAGNUM_4000 is not set
# CONFIG_MIPS_MALTA is not set
# CONFIG_MOMENCO_OCELOT is not set
# CONFIG_DDB5074 is not set
# CONFIG_DDB5476 is not set
# CONFIG_DDB5477 is not set
# CONFIG_NEC_OSPREY is not set
# CONFIG_OLIVETTI_M700 is not set
# CONFIG_NINO is not set
# CONFIG_SGI_IP22 is not set
# CONFIG_SIBYTE_SB1250 is not set
# CONFIG_SNI_RM200_PCI is not set
# CONFIG_TOSHIBA_JMR3927 is not set
# CONFIG_HIGHMEM is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
CONFIG_NEW_IRQ=y
CONFIG_NEW_TIME_C=y
# CONFIG_MIPS_AU1000 is not set

#
# CPU selection
#
CONFIG_CPU_R3000=y
# CONFIG_CPU_TX39XX is not set
# CONFIG_CPU_R6000 is not set
# CONFIG_CPU_VR41XX is not set
# CONFIG_CPU_R4300 is not set
# CONFIG_CPU_R4X00 is not set
# CONFIG_CPU_TX49XX is not set
# CONFIG_CPU_R5000 is not set
# CONFIG_CPU_R5432 is not set
# CONFIG_CPU_RM7000 is not set
# CONFIG_CPU_NEVADA is not set
# CONFIG_CPU_R10000 is not set
# CONFIG_CPU_SB1 is not set
# CONFIG_CPU_MIPS32 is not set
# CONFIG_CPU_MIPS64 is not set
# CONFIG_CPU_ADVANCED is not set
# CONFIG_CPU_HAS_LLSC is not set
# CONFIG_CPU_HAS_LLDSCD is not set
# CONFIG_CPU_HAS_WB is not set

#
# General setup
#
CONFIG_CPU_LITTLE_ENDIAN=y
# CONFIG_NET is not set
# CONFIG_PCI is not set
# CONFIG_ISA is not set
# CONFIG_EISA is not set
# CONFIG_TC is not set
# CONFIG_MCA is not set
# CONFIG_SBUS is not set
# CONFIG_HOTPLUG is not set
# CONFIG_PCMCIA is not set
# CONFIG_HOTPLUG_PCI is not set
# CONFIG_SYSVIPC is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_SYSCTL is not set
CONFIG_KCORE_ELF=y
# CONFIG_KCORE_AOUT is not set
CONFIG_BINFMT_FLAT=y
# CONFIG_BINFMT_ZFLAT is not set
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Plug and Play configuration
#
# CONFIG_PNP is not set
# CONFIG_ISAPNP is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_CISS_SCSI_TAPE is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_BLK_DEV_RAMDISK_DATA is not set
# CONFIG_BLK_DEV_BLKMEM is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Telephony Support
#
# CONFIG_PHONE is not set
# CONFIG_PHONE_IXJ is not set
# CONFIG_PHONE_IXJ_PCMCIA is not set

#
# SCSI support
#
# CONFIG_SCSI is not set

#
# Amateur Radio support
#
# CONFIG_HAMRADIO is not set

#
# Character devices
#
# CONFIG_LEDMAN is not set
# CONFIG_VT is not set
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
CONFIG_RAMFS=y
# CONFIG_ISO9660_FS is not set
# CONFIG_JOLIET is not set
# CONFIG_ZISOFS is not set
CONFIG_MINIX_FS=y
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
CONFIG_DEVFS_FS=y
CONFIG_DEVFS_MOUNT=y
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
CONFIG_ROMFS_FS=y
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_SMB_FS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
# CONFIG_NLS is not set

#
# Sound
#
# CONFIG_SOUND is not set

#
# USB support
#
# CONFIG_USB is not set

#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Kernel hacking
#
CONFIG_CROSSCOMPILE=y
# CONFIG_REMOTE_DEBUG is not set
# CONFIG_GDB_CONSOLE is not set
# CONFIG_DEBUG is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_MIPS_UNCACHED is not set
# CONFIG_CONTIGUOUS_PAGE_ALLOC is not set

         

        

        xuhaoz
        xuhaoz@neonetech.com
          2004-09-01
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