RE: Memory leak problem

RE: Memory leak problem

[Jean Cantarutti]

[-- Attachment #1: Type: text/html, Size: 2815 bytes --]

Re: Memory leak problem

[Anders Fugmann]

Jean Cantarutti wrote:
> Netfilter is the only proccess running in that machine (I think).
> kernel version: 2.4.18-3
> gcc version: 2.96
> Red Hat Linux 7.3 2.96-110
> 
Please repeat how you observe the leak, and what tools you are using in 
order to do so. Also give some printouts from the system, in order for 
us to verify the leak.

Regards
Anders Fugmann

Re: Problems with Serial Port on IceCube

[Wolfgang Denk]

Dear Linas,

in message <000001c50adc$c814dae0$6401a8c0@supernova> you wrote:
> 
> Any ideas of whats going on ????? Is their a problem with the console support in 
> Sylvain's port or something in the "standard" init scripts that come with DENX's ELDK 
> 3.1 when used with a 2.6.xx kernel or have I missed something obvious?

There is nothing in the init scripts that should matter here.

Just out of curiousity: can you try another console cable? Probably a
minimal one (only 3 wires: GND + RxD + TxD) ?

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
"There are things that are so serious that you can  only  joke  about
them"                                                    - Heisenberg

Memory leak problem

[robin]

Hi
We have an application running on  denx linux kernel 2.4.20.

Apparently there is a memory leak that we are not able to find.
The application is giving out of memory error. Even if we restart=20
the application without rebooting the kernel, (killing all application=20
processes and restarting), it gives the same out of memory error.=20
Rebooting the kernel solves the problem.

It seems that the memory leak is not at the application level
'cos restarting the application doesnt solve the problem..

1. Any ideas where I should look for the leak??
2. Is there any known memory leak problems with the kernel??

Thanks in advance,
Robin

Re: Memory leak problem

[Gerhard Jaeger]

On Thursday 10 February 2005 07:07, robin wrote:
> Hi
> We have an application running on  denx linux kernel 2.4.20.
> 
> Apparently there is a memory leak that we are not able to find.
> The application is giving out of memory error. Even if we restart 
> the application without rebooting the kernel, (killing all application 
> processes and restarting), it gives the same out of memory error. 
> Rebooting the kernel solves the problem.
> 
> It seems that the memory leak is not at the application level
> 'cos restarting the application doesnt solve the problem..
> 
> 1. Any ideas where I should look for the leak??

Check /proc/slabinfo and see if there are some "supicious" buffer,
that only increase and never decrease. From the kind of buffer
showing this behaviour you might find out where to dig...
Check it before running the application and afterwards.

> 2. Is there any known memory leak problems with the kernel??
There are enough places, where a kernel could leak, but in general
such leaks in the main part are detected really fast. Undiscovered
leaks are often found in the drivers itself.

What's your kernel config?
Which HW are you using?
What does this application?

Ciao,
Gerhard

-- 
Gerhard Jaeger <gjaeger@sysgo.com>            
SYSGO AG                 Embedded and Real-Time Software
www.sysgo.com    |    www.elinos.com    |    www.osek.de

Re: Memory leak problem

[robin]

[-- Attachment #1: Type: text/plain, Size: 1884 bytes --]

Hi thanks for your reply..

I am attaching the kernel config file. the kernel version is kernel 2.4.20.
The processor we are using is MPC852T.

Am i correct in my conclusion that the software restart(killing and 
restarting)  without kernel reboot does free all resources used by the 
software including memory??

thanks in advance




On Thursday 10 Feb 2005 1:10 pm, you wrote:
> On Thursday 10 February 2005 07:07, robin wrote:
> > Hi
> > We have an application running on  denx linux kernel 2.4.20.
> >
> > Apparently there is a memory leak that we are not able to find.
> > The application is giving out of memory error. Even if we restart
> > the application without rebooting the kernel, (killing all application
> > processes and restarting), it gives the same out of memory error.
> > Rebooting the kernel solves the problem.
> >
> > It seems that the memory leak is not at the application level
> > 'cos restarting the application doesnt solve the problem..
> >
> > 1. Any ideas where I should look for the leak??
>
> Check /proc/slabinfo and see if there are some "supicious" buffer,
> that only increase and never decrease. From the kind of buffer
> showing this behaviour you might find out where to dig...
> Check it before running the application and afterwards.
>
> > 2. Is there any known memory leak problems with the kernel??
>
> There are enough places, where a kernel could leak, but in general
> such leaks in the main part are detected really fast. Undiscovered
> leaks are often found in the drivers itself.
>
> What's your kernel config?
> Which HW are you using?
> What does this application?
>
> Ciao,
> Gerhard

-- 
Nvidia driver loaded - bugs to nvidia. vmware loaded bugs to vmware,
both loaded, god help you, nobody else will

	- Alan Cox explaining where to send bug reports for binary-only drivers

[-- Attachment #2: config --]
[-- Type: text/plain, Size: 17273 bytes --]



#
# Automatically generated make config: don't edit
#
# CONFIG_UID16 is not set
# CONFIG_RWSEM_GENERIC_SPINLOCK is not set
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_HAVE_DEC_LOCK=y


#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_ADVANCED_OPTIONS=y
CONFIG_TRIM_DOWN=y


#
# Loadable module support
#
CONFIG_MODULES=y
# CONFIG_MODVERSIONS is not set
CONFIG_KMOD=y


#
# Platform support
#
CONFIG_PPC=y
CONFIG_PPC32=y
# CONFIG_6xx is not set
# CONFIG_40x is not set
# CONFIG_440 is not set
# CONFIG_POWER3 is not set
CONFIG_8xx=y
# CONFIG_PPC_ISERIES is not set
# CONFIG_PPC_STD_MMU is not set
CONFIG_SERIAL_CONSOLE=y
CONFIG_NOT_COHERENT_CACHE=y
# CONFIG_RPXLITE is not set
# CONFIG_RPXCLASSIC is not set
# CONFIG_BSEIP is not set
# CONFIG_FADS is not set
# CONFIG_TQM823L is not set
# CONFIG_TQM850L is not set
# CONFIG_TQM855L is not set
# CONFIG_TQM860L is not set
# CONFIG_TQM823M is not set
# CONFIG_TQM850M is not set
# CONFIG_TQM855M is not set
# CONFIG_TQM860M is not set
# CONFIG_TQM862M is not set
# CONFIG_FPS850L is not set
# CONFIG_SPD823TS is not set
# CONFIG_IVMS8 is not set
# CONFIG_IVML24 is not set
# CONFIG_SM850 is not set
# CONFIG_HERMES_PRO is not set
# CONFIG_IP860 is not set
# CONFIG_LWMON is not set
# CONFIG_PCU_E is not set
# CONFIG_CCM is not set
# CONFIG_LANTEC is not set
# CONFIG_MBX is not set
CONFIG_TEJAS=y
# CONFIG_DAB4K is not set
# CONFIG_WINCEPT is not set
CONFIG_TN100=y
# CONFIG_TN200 is not set
CONFIG_IGN_MC_EXCEP=y
# CONFIG_TN100_ITC is not set
# CONFIG_TN100_LTC is not set
# CONFIG_TN100_MC4L is not set
CONFIG_TN100_TXC1=y
# CONFIG_TN100_LTC4 is not set
# CONFIG_TN100_LPSS2 is not set
# CONFIG_ALL_PPC is not set
# CONFIG_SMP is not set
# CONFIG_MATH_EMULATION is not set
CONFIG_EMBEDDEDBOOT=y


#
# General setup
#
# CONFIG_HIGHMEM is not set
# CONFIG_KERNEL_START_BOOL is not set
# CONFIG_TASK_SIZE_BOOL is not set
# CONFIG_PIN_TLB is not set
# CONFIG_ISA is not set
# CONFIG_EISA is not set
# CONFIG_SBUS is not set
# CONFIG_MCA is not set
# CONFIG_PCI_QSPAN is not set
# CONFIG_PCI is not set
CONFIG_NET=y
CONFIG_SYSCTL=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_KERNEL_ELF=y
CONFIG_BINFMT_MISC=y
# CONFIG_HOTPLUG is not set
# CONFIG_PCMCIA is not set


#
# Parallel port support
#
# CONFIG_PARPORT is not set
# CONFIG_PPC_RTC is not set
# CONFIG_CMDLINE_BOOL is not set


#
# Memory Technology Devices (MTD)
#
CONFIG_MTD=y
# CONFIG_MTD_DEBUG is not set
CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_CONCAT is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
# CONFIG_MTD_CMDLINE_PARTS is not set


#
# User Modules And Translation Layers
#
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
# CONFIG_FTL is not set
# CONFIG_NFTL is not set
# CONFIG_INFTL is not set


#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_CFI=y
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_GEN_PROBE=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
CONFIG_MTD_CFI_NOSWAP=y
# CONFIG_MTD_CFI_BE_BYTE_SWAP is not set
# CONFIG_MTD_CFI_LE_BYTE_SWAP is not set
CONFIG_MTD_CFI_GEOMETRY=y
# CONFIG_MTD_CFI_B1 is not set
# CONFIG_MTD_CFI_B2 is not set
CONFIG_MTD_CFI_B4=y
# CONFIG_MTD_CFI_B8 is not set
# CONFIG_MTD_CFI_I1 is not set
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
# CONFIG_MTD_CFI_INTELEXT is not set
CONFIG_MTD_CFI_AMDSTD=y
# CONFIG_MTD_CFI_STAA is not set
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
# CONFIG_MTD_OBSOLETE_CHIPS is not set
# CONFIG_MTD_AMDSTD is not set
# CONFIG_MTD_SHARP is not set
# CONFIG_MTD_JEDEC is not set


#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PHYSMAP is not set
CONFIG_MTD_TN100_MAP=y
# CONFIG_MTD_TN100_MAP_HARD_CODED is not set
CONFIG_MTD_PHYSMAP_BUSWIDTH=4
# CONFIG_MTD_DBOX2 is not set
# CONFIG_MTD_CFI_FLAGADM is not set
# CONFIG_MTD_PCI is not set
# CONFIG_MTD_PCMCIA is not set


#
# Self-contained MTD device drivers
#
# CONFIG_MTD_PMC551 is not set
CONFIG_MTD_SLRAM=y
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_BLKMTD is not set


#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOC2000 is not set
# CONFIG_MTD_DOC2001 is not set
# CONFIG_MTD_DOC2001PLUS is not set
# CONFIG_MTD_DOCPROBE is not set


#
# NAND Flash Device Drivers
#
# CONFIG_MTD_NAND 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=y
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_BLK_STATS 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


#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
# CONFIG_NETLINK_DEV is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
# CONFIG_IP_MULTIPLE_TABLES is not set
# CONFIG_IP_ROUTE_MULTIPATH is not set
# CONFIG_IP_ROUTE_TOS is not set
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_LARGE_TABLES=y
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=y
# CONFIG_NET_IPGRE is not set
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
# CONFIG_IP_PIMSM_V2 is not set
# CONFIG_ARPD is not set
CONFIG_INET_ECN=y
CONFIG_SYN_COOKIES=y


#
#   IP: Netfilter Configuration
#
CONFIG_IP_NF_CONNTRACK=y
CONFIG_IP_NF_FTP=y
CONFIG_IP_NF_IRC=y
# CONFIG_IP_NF_QUEUE is not set
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_LIMIT=y
CONFIG_IP_NF_MATCH_MAC=y
CONFIG_IP_NF_MATCH_PKTTYPE=y
CONFIG_IP_NF_MATCH_MARK=y
CONFIG_IP_NF_MATCH_MULTIPORT=y
CONFIG_IP_NF_MATCH_TOS=y
CONFIG_IP_NF_MATCH_ECN=y
CONFIG_IP_NF_MATCH_DSCP=y
CONFIG_IP_NF_MATCH_AH_ESP=y
CONFIG_IP_NF_MATCH_LENGTH=y
CONFIG_IP_NF_MATCH_TTL=y
CONFIG_IP_NF_MATCH_TCPMSS=y
CONFIG_IP_NF_MATCH_HELPER=y
CONFIG_IP_NF_MATCH_STATE=y
CONFIG_IP_NF_MATCH_CONNTRACK=y
CONFIG_IP_NF_MATCH_UNCLEAN=y
CONFIG_IP_NF_MATCH_OWNER=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
CONFIG_IP_NF_TARGET_MIRROR=y
CONFIG_IP_NF_NAT=y
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_IP_NF_TARGET_REDIRECT=y
# CONFIG_IP_NF_NAT_LOCAL is not set
CONFIG_IP_NF_NAT_SNMP_BASIC=y
CONFIG_IP_NF_NAT_IRC=y
CONFIG_IP_NF_NAT_FTP=y
# CONFIG_IP_NF_MANGLE is not set
# CONFIG_IP_NF_TARGET_LOG is not set
CONFIG_IP_NF_TARGET_ULOG=y
CONFIG_IP_NF_TARGET_TCPMSS=y
CONFIG_IP_NF_ARPTABLES=y
CONFIG_IP_NF_ARPFILTER=y
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set


#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set


#
# Appletalk devices
#
# CONFIG_DEV_APPLETALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set


#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set


#
# Network testing
#
# CONFIG_NET_PKTGEN is not set


#
# ATA/IDE/MFM/RLL support
#
CONFIG_IDE=y


#
# IDE, ATA and ATAPI Block devices
#
CONFIG_BLK_DEV_IDE=y


#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_HD_IDE is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
# CONFIG_IDEDISK_STROKE is not set
# CONFIG_BLK_DEV_IDEDISK_VENDOR is not set
# CONFIG_BLK_DEV_IDEDISK_FUJITSU is not set
# CONFIG_BLK_DEV_IDEDISK_IBM is not set
# CONFIG_BLK_DEV_IDEDISK_MAXTOR is not set
# CONFIG_BLK_DEV_IDEDISK_QUANTUM is not set
# CONFIG_BLK_DEV_IDEDISK_SEAGATE is not set
# CONFIG_BLK_DEV_IDEDISK_WD is not set
# CONFIG_BLK_DEV_COMMERIAL is not set
# CONFIG_BLK_DEV_TIVO is not set
# CONFIG_BLK_DEV_IDECS is not set
# CONFIG_BLK_DEV_IDECD is not set
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_IDE_TASK_IOCTL is not set


#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_BLK_DEV_CMD640_ENHANCED is not set
# CONFIG_BLK_DEV_ISAPNP is not set
CONFIG_BLK_DEV_MPC8xx_IDE=y
CONFIG_IDE_8xx_PCCARD=y
# CONFIG_IDE_8xx_DIRECT is not set
# CONFIG_IDE_EXT_DIRECT is not set
# CONFIG_IDE_CHIPSETS is not set
# CONFIG_IDEDMA_AUTO is not set
# CONFIG_DMA_NONPCI is not set
CONFIG_BLK_DEV_IDE_MODES=y
# CONFIG_BLK_DEV_ATARAID is not set
# CONFIG_BLK_DEV_ATARAID_PDC is not set
# CONFIG_BLK_DEV_ATARAID_HPT is not set


#
# SCSI support
#
# CONFIG_SCSI is not set


#
# Fusion MPT device support
#
# CONFIG_FUSION is not set
# CONFIG_FUSION_BOOT is not set
# CONFIG_FUSION_ISENSE is not set
# CONFIG_FUSION_CTL is not set
# CONFIG_FUSION_LAN is not set


#
# I2O device support
#
# CONFIG_I2O is not set
# CONFIG_I2O_BLOCK is not set
# CONFIG_I2O_LAN is not set
# CONFIG_I2O_SCSI is not set
# CONFIG_I2O_PROC is not set


#
# Network device support
#
CONFIG_NETDEVICES=y


#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set


#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_MACE is not set
# CONFIG_BMAC is not set
# CONFIG_GMAC is not set
# CONFIG_SUNLANCE is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_NET_ISA is not set
# CONFIG_NET_PCI is not set
# CONFIG_NET_POCKET is not set


#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_TIGON3 is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=y
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_ASYNC=y
# CONFIG_PPP_SYNC_TTY is not set
CONFIG_PPP_DEFLATE=y
# CONFIG_PPP_BSDCOMP is not set
# CONFIG_PPPOE is not set
# CONFIG_SLIP is not set


#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set


#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set


#
# Wan interfaces
#
CONFIG_WAN=y
# CONFIG_COMX is not set
# CONFIG_DSCC4 is not set
# CONFIG_FARSYNC is not set
# CONFIG_LANMEDIA is not set
# CONFIG_ATI_XX20 is not set
# CONFIG_SEALEVEL_4021 is not set
CONFIG_SYNCLINK_SYNCPPP=y
# CONFIG_HDLC is not set
# CONFIG_DLCI is not set
# CONFIG_LAPBETHER is not set
# CONFIG_X25_ASY is not set


#
# Amateur Radio support
#
# CONFIG_HAMRADIO is not set


#
# IrDA (infrared) support
#
# CONFIG_IRDA is not set


#
# ISDN subsystem
#
# CONFIG_ISDN is not set


#
# Old CD-ROM drivers (not SCSI, not IDE)
#
# CONFIG_CD_NO_IDESCSI is not set


#
# Console drivers
#


#
# Frame-buffer support
#
# CONFIG_FB 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


#
# Macintosh device drivers
#


#
# Character devices
#
# CONFIG_VT is not set
# CONFIG_SERIAL is not set
# CONFIG_SERIAL_EXTENDED is not set
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_COMPUTONE is not set
# CONFIG_ROCKETPORT is not set
# CONFIG_CYCLADES is not set
# CONFIG_DIGIEPCA is not set
# CONFIG_DIGI is not set
# CONFIG_ESPSERIAL is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
# CONFIG_ISI is not set
# CONFIG_SYNCLINK is not set
# CONFIG_SYNCLINKMP is not set
# CONFIG_N_HDLC is not set
# CONFIG_RISCOM8 is not set
# CONFIG_SPECIALIX is not set
# CONFIG_SX is not set
# CONFIG_RIO is not set
# CONFIG_STALDRV is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=128


#
# 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


#
# Input core support is needed for gameports
#


#
# Input core support is needed for joysticks
#
# CONFIG_QIC02_TAPE is not set


#
# Watchdog Cards
#
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
# 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_AMD7XX_TCO is not set
CONFIG_WDT_MPC8XX=y
# CONFIG_AMD_PM768 is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_RTC_11_MINUTE_MODE is not set
# CONFIG_PCF8563_RTC is not set
# CONFIG_RTC_8XX is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_FLASH 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_BEFS_FS is not set
# CONFIG_BEFS_DEBUG is not set
# CONFIG_BFS_FS is not set
CONFIG_EXT3_FS=y
CONFIG_JBD=y
# 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=y
CONFIG_JFFS2_FS_DEBUG=0
# CONFIG_JFFS2_FS_NAND is not set
CONFIG_CRAMFS=y
# 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_JFS_FS is not set
# CONFIG_JFS_DEBUG is not set
# CONFIG_JFS_STATISTICS is not set
# CONFIG_MINIX_FS is not set
# 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 is not set
# CONFIG_DEVFS_MOUNT is not set
# 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 is not set
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


#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
CONFIG_NFS_FS=y
# CONFIG_NFS_V3 is not set
# CONFIG_ROOT_NFS is not set
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
# CONFIG_NFSD_TCP is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
# CONFIG_ZISOFS_FS 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


#
# MPC8xx CPM Options
#
# CONFIG_CPM_TRACK_LOAD is not set
# CONFIG_SCC_ENET is not set
# CONFIG_SCC1_ENET is not set
# CONFIG_SCC2_ENET is not set
# CONFIG_SCC3_ENET is not set
CONFIG_FEC_ENET=y
CONFIG_USE_MDIO=y
# CONFIG_FEC_AM79C874 is not set
# CONFIG_FEC_LXT970 is not set
CONFIG_FEC_LXT971=y
# CONFIG_FEC_QS6612 is not set
# CONFIG_FEC_DP83843 is not set
# CONFIG_FEC_DP83846A is not set
# CONFIG_FEC_PACKETHOOK is not set
# CONFIG_ENET_BIG_BUFFERS is not set
CONFIG_SMC1_UART_RX_BDNUM=4
CONFIG_SMC1_UART_RX_BDSIZE=32
CONFIG_SMC1_UART_TX_BDNUM=4
CONFIG_SMC1_UART_TX_BDSIZE=32
# CONFIG_SMC2_UART is not set
# CONFIG_USE_SCC_IO is not set


#
# Generic MPC8xx Options
#
CONFIG_8xx_COPYBACK=y
# CONFIG_8xx_CPU6 is not set
# CONFIG_UCODE_PATCH is not set


#
# USB support
#
# CONFIG_USB is not set


#
# Bluetooth support
#
# CONFIG_BLUEZ is not set


#
# Library routines
#
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y


#
# Kernel hacking
#
CONFIG_DEBUG_KERNEL=y
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_DEBUG_HIGHMEM is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_IOVIRT is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_WAITQ is not set
# CONFIG_KGDB is not set
# CONFIG_XMON is not set
# CONFIG_BDI_SWITCH is not set

Memory leak problem

[robin]

Hi=20
Thanks for your help.=20

We found the memory leak in the syncppp module in linux.

1. Did somebody encounter any problems(leaks) with the=20
syncppp module in denx 2.4.20 kernel??=20

2. Are there any known issues with this module??

The scenario is we are ftp-ing continuosly between=20
two nodes using syncppp module. The leak is ocuring at=20
both the nodes.

Regards,
Robin



On Thursday 10 Feb 2005 1:10 pm, Gerhard Jaeger wrote:
> On Thursday 10 February 2005 07:07, robin wrote:
> > Hi
> > We have an application running on  denx linux kernel 2.4.20.
> >
> > Apparently there is a memory leak that we are not able to find.
> > The application is giving out of memory error. Even if we restart
> > the application without rebooting the kernel, (killing all applicatio=
n
> > processes and restarting), it gives the same out of memory error.
> > Rebooting the kernel solves the problem.
> >
> > It seems that the memory leak is not at the application level
> > 'cos restarting the application doesnt solve the problem..
> >
> > 1. Any ideas where I should look for the leak??
>
> Check /proc/slabinfo and see if there are some "supicious" buffer,
> that only increase and never decrease. From the kind of buffer
> showing this behaviour you might find out where to dig...
> Check it before running the application and afterwards.
>
> > 2. Is there any known memory leak problems with the kernel??
>
> There are enough places, where a kernel could leak, but in general
> such leaks in the main part are detected really fast. Undiscovered
> leaks are often found in the drivers itself.
>
> What's your kernel config?
> Which HW are you using?
> What does this application?
>
> Ciao,
> Gerhard

--=20
And I hate redundancy, and having different functions for the same thing.

=09- Linus Torvalds on linux-kernel

Re: Memory leak problem

[Wolfgang Denk]

In message <200502111159.04265.robin@india.tejasnetworks.com> you wrote:
> 
> 1. Did somebody encounter any problems(leaks) with the 
> syncppp module in denx 2.4.20 kernel?? 

2.4.20 is pretty old. Is there any specific reason for  not  using  a
more recent kernel version?


Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
"To IBM, 'open' means there is a modicum  of  interoperability  among
some of their equipment."                            - Harv Masterson

Memory leak problem

[Pito Breizh]

Hello,

I've got a problem of memory leak with iptables. I'm using iptables
1.2.7a. I've linked libiptc.a and iptables.o with my application.

I'm setting up some NAT rules by using do_command and iptc_commit
functions.

I've seen a mail on netfilter-devel list (dated of 2 september) dealing
with this problems. Here is this mail :

>You expect the iptables source components to be more than a short->running 
>one-shot application; you expect them to be usable in a library in a 
>longer-running process. That expectation is wrong, the current userlevel 
>iptables source was not designed with that goal in mind.

>This is currently tackled by some developers (not me), who are working
>on an all-new userlevel and user/kernel interface that _is_ designed
>to support efficient use from many different userlevel applications.

>However, as far as I know, this reimplementation is currently not
>in a form that you may use.

>best regards
>  Patrick

First of all, I would want to know if the developers team in charge of
the developement of the new userlevel interface is on this list?

Secondly, are there news about this subject ? If developement's
resources are needed, perhaps I can help !

Best regards,
   Mickael





_________________________________________________________________
MSN Messenger : discutez en direct avec vos amis ! 
http://www.msn.fr/msger/default.asp

Memory leak problem

[Pito Breizh]

Hello,

I've got a problem of memory leak with iptables. I'm using iptables
1.2.7a. I've linked libiptc.a and iptables.o with my application.

I'm setting up some NAT rules by using do_command and iptc_commit
functions.

I've seen a mail on netfilter-devel list (dated of 2 september) dealing
with this problems. Here is this mail :

>You expect the iptables source components to be more than a short->running 
>one-shot application; you expect them to be usable in a library in a 
>longer-running process. That expectation is wrong, the current userlevel 
>iptables source was not designed with that goal in mind.

>This is currently tackled by some developers (not me), who are working
>on an all-new userlevel and user/kernel interface that _is_ designed
>to support efficient use from many different userlevel applications.

>However, as far as I know, this reimplementation is currently not
>in a form that you may use.

>best regards
>  Patrick

First of all, I would want to know if the developers team in charge of
the developement of the new userlevel interface is on this list?

Secondly, are there news about this subject ? If developement's
resources are needed, perhaps I can help !

Best regards,
   Mickael





_________________________________________________________________
MSN Search, le moteur de recherche qui pense comme vous ! 
http://search.msn.fr/worldwide.asp

RE: Memory leak problem

[Jean Cantarutti]

[-- Attachment #1: Type: text/html, Size: 2961 bytes --]

Memory leak problem

[Jean Cantarutti]

[-- Attachment #1: Type: text/html, Size: 745 bytes --]

Re: Memory leak problem

[Anders Fugmann]

Jean Cantarutti wrote:
> Hi, im using iptables 1.2.5 on a HP machine working like firewall, it 
> has 512 MB of RAM and every 30 seconds eats 6 kb of RAM, in 48 hours 
> only left 8300 kb of available RAM.
Do remember that unused ram is used for disc cache and buffers, so 
watching top does not give nessesarly an accurate picture of how ram is 
used.

Could you please describe why you think that iptabels/netfilter has a 
memory leak? Also printouts og memory usage would help us understand 
what is happening.

Btw. What kernel are you using?


Regards
Anders Fugmann

Re: Memory leak problem

[Antony Stone]

On Friday 27 September 2002 4:03 pm, Jean Cantarutti wrote:

> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
> <HTML>
> <HEAD>
> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=US-ASCII">
> <META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2653.12">
> <TITLE>Memory leak problem</TITLE>
> </HEAD>
> <BODY>
>
> <P><FONT SIZE=2 FACE="Arial">Hi, im using iptables 1.2.5 on a HP machine
> working like firewall, it has 512 MB of RAM and every 30 seconds eats 6 kb
> of RAM, in 48 hours only left 8300 kb of available RAM.</FONT></P>

Please:

1. Do not post html to this mailing list.
2. Tell us the volume of traffic you have going through your firewall.
3. Tell us the number of simultaneous connections you have through your 
firewall.
4. Tell us if you get any messages from netfilter in your syslog.
5. Give us an idea of what protocols you're handling, and what your ruleset 
is.
6. Let us know if you have any other services or applications running on your 
firewall.

Antony.

-- 

If you want to be happy for an hour, get drunk.
If you want to be happy for a year, get married.
If you want to be happy for a lifetime, get a garden.

Re: Memory leak problem

[Anthony Liu]

On Fri, 27 Sep 2002 11:03:32 -0400 Jean Cantarutti <jcantarutti@subtel.cl> wrote:

> Memory leak problem
> 
> Hi, im using iptables 1.2.5 on a HP machine working like firewall, it has 512 MB of RAM and every 30 seconds eats 6 kb of RAM, in 48 hours only left 8300 kb of available RAM.
> 
> I need help.

Are you sure it was leaking memory? Each tracked connection use up some kernel memory.
http://www.netfilter.org/documentation/FAQ/netfilter-faq.html#toc3.6

Ignore "available" RAM, the system will take as much "available" RAM for various cache buffers,
the system will release it back from the cache buffers when needed.  If the memory pressure still
increase, the system will start to swap some other process out.  Unless you are seeing out-of-memory
situation in the syslog, it should not be a problem.  BTW, how many clients is the firewall serving?