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SubjectKSYMOOPS OUTPUT: 2.0.20, eql+tunl, NULL POINTER DEREFERENCE
-----BEGIN PGP SIGNED MESSAGE-----

Hi all,

Got the following while trying to ping over an eql using two tunl devices as
slaves. I'm also doing a fair amount of firewalling. Let me know what
other information you need. I'm plopping it on two lists to save time.
Kernel release is 2.0.12, and I'll add my config and a list of modules which
should correspond to the ones loaded when the problem occurred. Please let
me know what other documentation I can provide.

According to the eql author (Simon James), this should work. I'm not sure
of his email address or I'd copy him too, I noticed that the README.eql file
has a bad ftp hostname in it, etc. :)

Would appreciate an email if someone can come up with a patch. Thank you in
advance for any assistance you can provide! :)



:) lilo

-----BEGIN PGP SIGNATURE-----
Version: 2.6.3a
Charset: noconv
Comment: Government is always benevolent. Privacy is overrated.

iQCVAwUBMkh8d523L4XLlypxAQHzAQP9H6nHR+pV6hzAvtRR/rQHVeIbIG63FqAT
Wf4FpL/X6dwNpHGzYZNbyNhgPLDtJn/euKC+RGmIUCBTGEOXWrTPvq20ObHr34TW
SicUjiiYSwdVtmiNz+2mcT+kB1d1RN93doHdoP1pnksJXk6ChTZjaba7y6IQ84MT
l2/RpuH9sR0=
=RITI
-----END PGP SIGNATURE-----
Using `linux/System.map' to map addresses to symbols.

Trace: 13cd8f <do_dev_queue_xmit+5f/1d0>
Trace: 28b465c
Trace: 28b465c
Trace: 13cf1a <dev_queue_xmit+1a/30>
Trace: 28b465c
Trace: 28af400
Trace: 28b465c
Trace: 28aff68
Trace: 28afed0
Trace: 13cec4 <do_dev_queue_xmit+194/1d0>
Trace: 28afed0
Trace: 28afed0
Trace: 13cf1a <dev_queue_xmit+1a/30>
Trace: 28afed0
Trace: 149072 <ip_build_xmit+d92/e40>
Trace: 28afed0
Trace: 2855c98
Trace: 10c9ea <do_fast_IRQ+2a/50>
Trace: 28afed0
Trace: 1506be <raw_sendto+19e/1b0>
Trace: 150420 <raw_getfrag>
Trace: 150704 <raw_sendmsg+34/d0>
Trace: 155c01 <inet_sendmsg+a1/c0>
Trace: 13a68d <sys_sendto+14d/170>
Trace: 17c77f <write_chan+10f/1b0>
Trace: 10a246 <setup_frame+116/190>
Trace: 10a323 <handle_signal+63/a0>
Trace: 13b0e3 <sys_socketcall+233/350>
Trace: 10a6e2 <system_call+52/80>

Code: addl %eax,(%eax)
Code: addb %al,(%eax)
Code: enter $0xf7,$0xf0
Code: ret
Code: loop 0000000b <_EIP+b>
Code: lock enter $0xf7,$0xf0
Code: enter $0xf7,$0xf0
Unable to handle kernel NULL pointer dereference at virtual address c0000000
current->tss.cr3 = 00bfa000, Hr3 = 00bfa000
*pde = 00102067
*pte = 00000027
Oops: 0000
CPU: 0
EIP: 0010:[<00000000>]
EFLAGS: 00010246
eax: 00000001 ebx: 00000001 ecx: 00b36d50 edx: 00000000
esi: 00b36d50 edi: 00b36d50 ebp: 028b465c esp: 017dfcd8
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process ping (pid: 249, process nr: 72, stackpage=017df000)
Stack: 0013cd8f 00b36810 028b465c 0b2410cf 00b36d50 01fa47d8 028b465c 00b36d50
013e4398 00000000 01fa47d8 0013cf1a 00b36d50 028b465c 00000001 028af400
00b36d50 028b465c 00000001 00000001 00b36d50 028aff68 028afed0 0013cec4
Call Trace: [<0013cd8f>] [<028b465c>] [<028b465c>] [<0013cf1a>] [<028b465c>] [<028af400>] [<028b465c>]
[<028aff68>] [<028afed0>] [<0013cec4>] [<028afed0>] [<028afed0>] [<0013cf1a>] [<028afed0>] [<00149072>]
[<028afed0>] [<02855c98>] [<0010c9ea>] [<028afed0>] [<001506be>] [<00150420>] [<00150704>] [<00155c01>]
[<0013a68d>] [<0017c77f>] [<0010a246>] [<0010a323>] [<0013b0e3>] [<0010a6e2>]
Code: 01 00 00 00 c8 f7 00 f0 c3 e2 00 f0 c8 f7 00 f0 c8 f7 00 f0
Aiee, killing interrupt handler
#
# Automatically generated make config: don't edit
#

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KERNELD=y

#
# General setup
#
# CONFIG_MATH_EMULATION is not set
CONFIG_NET=y
# CONFIG_MAX_16M is not set
CONFIG_PCI=y
CONFIG_PCI_OPTIMIZE=y
CONFIG_SYSVIPC=y
CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_JAVA=m
CONFIG_KERNEL_ELF=y
# CONFIG_M386 is not set
CONFIG_M486=y
# CONFIG_M586 is not set
# CONFIG_M686 is not set

#
# Floppy, IDE, and other block devices
#
CONFIG_BLK_DEV_FD=m
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_IDECD=y
CONFIG_BLK_DEV_IDETAPE=y
CONFIG_BLK_DEV_IDE_PCMCIA=y
CONFIG_BLK_DEV_CMD640=y
CONFIG_BLK_DEV_CMD640_ENHANCED=y
CONFIG_BLK_DEV_RZ1000=y
CONFIG_BLK_DEV_TRITON=y
CONFIG_IDE_CHIPSETS=y

#
# Note: most of these also require special kernel boot parameters
#
CONFIG_BLK_DEV_ALI14XX=y
CONFIG_BLK_DEV_DTC2278=y
CONFIG_BLK_DEV_HT6560B=y
CONFIG_BLK_DEV_PROMISE=y
CONFIG_BLK_DEV_QD6580=y
CONFIG_BLK_DEV_UMC8672=y

#
# Additional Block Devices
#
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_MD=y
CONFIG_MD_LINEAR=m
CONFIG_MD_STRIPED=m
CONFIG_BLK_DEV_RAM=m
CONFIG_BLK_DEV_XD=m
# CONFIG_BLK_DEV_HD is not set

#
# Networking options
#
CONFIG_FIREWALL=y
CONFIG_NET_ALIAS=y
CONFIG_INET=y
CONFIG_IP_FORWARD=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_FIREWALL=y
CONFIG_IP_FIREWALL_VERBOSE=y
CONFIG_IP_MASQUERADE=y

#
# Protocol-specific masquerading support will be built as modules.
#
CONFIG_IP_TRANSPARENT_PROXY=y
CONFIG_IP_ALWAYS_DEFRAG=y
CONFIG_IP_ACCT=y
# CONFIG_IP_ROUTER is not set
CONFIG_NET_IPIP=m
CONFIG_IP_MROUTE=y
CONFIG_IP_ALIAS=m
# CONFIG_ARPD is not set

#
# (it is safe to leave these untouched)
#
# CONFIG_INET_PCTCP is not set
CONFIG_INET_RARP=m
# CONFIG_NO_PATH_MTU_DISCOVERY is not set
CONFIG_IP_NOSR=y
CONFIG_SKB_LARGE=y

#
#
#
CONFIG_IPX=m
CONFIG_IPX_INTERN=y
CONFIG_ATALK=m
# CONFIG_AX25 is not set
# CONFIG_BRIDGE is not set
CONFIG_NETLINK=y
CONFIG_RTNETLINK=y

#
# SCSI support
#
CONFIG_SCSI=m

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m

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

#
# SCSI low-level drivers
#
CONFIG_SCSI_7000FASST=m
CONFIG_SCSI_AHA152X=m
CONFIG_SCSI_AHA1542=m
CONFIG_SCSI_AHA1740=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_SCSI_ADVANSYS=m
CONFIG_SCSI_IN2000=m
# CONFIG_SCSI_AM53C974 is not set
CONFIG_SCSI_BUSLOGIC=m
CONFIG_SCSI_DTC3280=m
CONFIG_SCSI_EATA=m
CONFIG_SCSI_EATA_DMA=m
CONFIG_SCSI_EATA_PIO=m
CONFIG_SCSI_FUTURE_DOMAIN=m
CONFIG_SCSI_GENERIC_NCR5380=m
CONFIG_SCSI_GENERIC_NCR53C400=y
CONFIG_SCSI_G_NCR5380_PORT=y
# CONFIG_SCSI_G_NCR5380_MEM is not set
CONFIG_SCSI_NCR53C406A=m
CONFIG_SCSI_NCR53C7xx=m
# CONFIG_SCSI_NCR53C7xx_sync is not set
CONFIG_SCSI_NCR53C7xx_FAST=y
CONFIG_SCSI_NCR53C7xx_DISCONNECT=y
CONFIG_SCSI_NCR53C8XX=m
CONFIG_SCSI_NCR53C8XX_TAGGED_QUEUE=y
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_NO_DISCONNECT is not set
# CONFIG_SCSI_NCR53C8XX_FORCE_ASYNCHRONOUS is not set
# CONFIG_SCSI_NCR53C8XX_FORCE_SYNC_NEGO is not set
# CONFIG_SCSI_NCR53C8XX_DISABLE_MPARITY_CHECK is not set
# CONFIG_SCSI_NCR53C8XX_DISABLE_PARITY_CHECK is not set
CONFIG_SCSI_PPA=m
CONFIG_SCSI_PAS16=m
CONFIG_SCSI_QLOGIC_FAS=m
CONFIG_SCSI_QLOGIC_ISP=m
CONFIG_SCSI_SEAGATE=m
CONFIG_SCSI_T128=m
CONFIG_SCSI_U14_34F=m
CONFIG_SCSI_ULTRASTOR=m

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_EQUALIZER=m
CONFIG_DLCI=m
CONFIG_DLCI_COUNT=24
CONFIG_DLCI_MAX=8
CONFIG_SDLA=m
CONFIG_PLIP=m
CONFIG_PPP=m

#
# CCP compressors for PPP are only built as modules.
#
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y
CONFIG_NET_RADIO=y
CONFIG_BAYCOM=m
CONFIG_STRIP=m
CONFIG_WAVELAN=m
CONFIG_WIC=m
CONFIG_SCC=m
CONFIG_NET_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
CONFIG_EL1=m
CONFIG_EL2=m
CONFIG_ELPLUS=m
CONFIG_EL16=m
CONFIG_EL3=m
CONFIG_VORTEX=m
# CONFIG_LANCE is not set
CONFIG_NET_VENDOR_SMC=y
CONFIG_WD80x3=m
CONFIG_ULTRA=m
CONFIG_SMC9194=m
CONFIG_NET_ISA=y
CONFIG_AT1700=m
CONFIG_E2100=m
CONFIG_DEPCA=m
CONFIG_EWRK3=m
CONFIG_EEXPRESS=m
CONFIG_EEXPRESS_PRO=m
CONFIG_FMV18X=m
CONFIG_HPLAN_PLUS=m
CONFIG_HPLAN=m
CONFIG_HP100=m
CONFIG_ETH16I=m
CONFIG_NE2000=m
CONFIG_NI52=m
# CONFIG_NI65 is not set
# CONFIG_SEEQ8005 is not set
# CONFIG_SK_G16 is not set
CONFIG_NET_EISA=y
CONFIG_AC3200=m
CONFIG_APRICOT=m
CONFIG_DE4X5=m
CONFIG_DEC_ELCP=m
CONFIG_DGRS=m
# CONFIG_ZNET is not set
CONFIG_NET_POCKET=y
# CONFIG_ATP is not set
CONFIG_DE600=m
CONFIG_DE620=m
CONFIG_TR=y
CONFIG_IBMTR=m
CONFIG_ARCNET=m
CONFIG_ARCNET_ETH=y
CONFIG_ARCNET_1051=y

#
# ISDN subsystem
#
CONFIG_ISDN=m
CONFIG_ISDN_PPP=y
CONFIG_ISDN_PPP_VJ=y
CONFIG_ISDN_MPP=y
CONFIG_ISDN_AUDIO=y
CONFIG_ISDN_DRV_ICN=m
CONFIG_ISDN_DRV_PCBIT=m
CONFIG_ISDN_DRV_TELES=m

#
# CD-ROM drivers (not for SCSI or IDE/ATAPI drives)
#
CONFIG_CD_NO_IDESCSI=y
CONFIG_AZTCD=m
CONFIG_GSCD=m
CONFIG_SBPCD=m
CONFIG_MCD=m
CONFIG_MCDX=m
CONFIG_OPTCD=m
CONFIG_CM206=m
CONFIG_SJCD=m
CONFIG_CDI_INIT=y
CONFIG_ISP16_CDI=m
CONFIG_CDU31A=m
CONFIG_CDU535=m

#
# Filesystems
#
CONFIG_QUOTA=y
# CONFIG_LOCK_MANDATORY is not set
CONFIG_MINIX_FS=m
CONFIG_EXT_FS=m
CONFIG_EXT2_FS=y
CONFIG_XIA_FS=m
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_UMSDOS_FS=m
CONFIG_PROC_FS=y
CONFIG_NFS_FS=m
CONFIG_SMB_FS=m
# CONFIG_SMB_LONG is not set
CONFIG_NCP_FS=m
CONFIG_ISO9660_FS=m
CONFIG_HPFS_FS=m
CONFIG_SYSV_FS=m
CONFIG_AFFS_FS=m
CONFIG_AMIGA_PARTITION=y
CONFIG_UFS_FS=m
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_SMD_DISKLABEL is not set

#
# Character devices
#
CONFIG_SERIAL=m
CONFIG_WD7600_SERIAL=y
CONFIG_WD7600_SCREEN=y
# CONFIG_DIGI is not set
CONFIG_CYCLADES=m
CONFIG_STALDRV=y
CONFIG_STALLION=m
CONFIG_ISTALLION=m
CONFIG_RISCOM8=m
CONFIG_PRINTER=m
CONFIG_MOUSE=y
CONFIG_ATIXL_BUSMOUSE=m
CONFIG_BUSMOUSE=m
CONFIG_MS_BUSMOUSE=m
CONFIG_PSMOUSE=m
# CONFIG_82C710_MOUSE is not set
CONFIG_UMISC=y
# CONFIG_QIC02_TAPE is not set
CONFIG_FTAPE=m

#
# Set IObase/IRQ/DMA for ftape in ./drivers/char/ftape/Makefile
#
# CONFIG_APM is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
# CONFIG_WDT is not set
CONFIG_SOFT_WATCHDOG=m
CONFIG_PCWATCHDOG=m
CONFIG_RTC=y

#
# Sound
#
CONFIG_SOUND=m
# CONFIG_LOWLEVEL_SOUND is not set

#
# Kernel hacking
#
# CONFIG_PROFILE is not set
ipip 1 0
tunnel1 1 0
tunnel0 1 0
eql 2 0
isofs 5 0
umsdos 5 0
msdos 2 [umsdos] 0
vfat 4 0
fat 6 [umsdos msdos vfat] 0
minix 7 0
bsd_comp 1 0
ppp 5 [bsd_comp] 2
slhc 2 [ppp] 2
3c509 2 1
sound 26 0
serial 8 3
lp 2 0
floppy 11 0
sd_mod 4 0
sg 1 0
BusLogic 6 0
scsi_mod 10 [sd_mod sg BusLogic] 3
totem 1 0
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