Oops

Savochkin Andrey Vladimirovich (saw@shade.msu.ru)
Mon, 16 Sep 1996 19:35:20 +0400 (MSD)


I seem to have an Oops in SCSI module (kernel 2.0.18):

Unable to handle kernel NULL pointer dereference at virtual address c000007f
current->tss.cr3 = 0072f000, %cr3 = 0072f000
*pde = 00102067
*pte = 00000027
Oops: 0000
CPU: 0
EIP: 0010:[<01812522>]
EFLAGS: 00010046
eax: 0000007f ebx: 00006dfc ecx: 00f92398 edx: 01327f24
esi: 00000000 edi: 00006e84 ebp: 001d01a8 esp: 01070dd0
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process netscape (pid: 1563, process nr: 48, stackpage=01070000)
Stack: 00f92398 01370801 00000046 00000001 00000000 0000007f 00000046 00260801
0181a916 001deb40 00f92398 00000000 001d04a8 01370801 001d0988 001deb3c
001727bf 00000008 013787b4 00000000 00000002 00172c1f 001deb3c 001d0988
Call Trace: [<0181a916>] [<001727bf>] [<00172c1f>] [<00172d69>] [<00126ace>] [<00126df3>] [<0011d18b>]
[<0011d274>] [<0011a5ab>] [<00110883>] [<00110720>] [<0010aae0>]
Code: ff 4c 24 14 8b 42 20 c1 e8 09 29 45 14 8b 42 20 c1 e8 09 01

Using `/boot/System.map' to map addresses to symbols.

Trace: 181a916
Trace: 1727bf <add_request+22f/240>
Trace: 172c1f <make_request+44f/460>
Trace: 172d69 <ll_rw_block+139/1a0>
Trace: 126ace <brw_page+29e/390>
Trace: 126df3 <generic_readpage+73/80>
Trace: 11d18b <filemap_nopage+13b/2c0>
Trace: 11d274 <filemap_nopage+224/2c0>
Trace: 11a5ab <do_no_page+10b/360>
Trace: 110883 <do_page_fault+163/2d0>
Trace: 110883 <do_page_fault+163/2d0>
Trace: 10aae0 <error_code+40/50>

Code: decl 0x14(%esp,1)
Code: movl 0x20(%edx),%eax
Code: shrl $0x9,%eax
Code: subl %eax,0x14(%ebp)
Code: movl 0x20(%edx),%eax
Code: shrl $0x9,%eax
Code: addl %eax,(%eax)
Code: nop
Code: nop
Code: nop

/proc/ksyms:
0183f004 ne_probe [eth1]
018406f0 Using_Versions [eth1]
0183c004 ne_probe [eth0]
0183d6f0 Using_Versions [eth0]
01839fa4 ei_debug [8390]
01839004 ei_open [8390]
01839d24 NS8390_init [8390]
01839064 ei_close [8390]
018393c4 ei_interrupt [8390]
01839ca4 ethdev_init [8390]
0183a46c Using_Versions [8390]
01825624 proc_scsi_ncr53c8xx [ncr53c8xx]
0181fb14 ncr_queue_command [ncr53c8xx]
01820454 ncr_reset_bus [ncr53c8xx]
01820494 ncr_abort_command [ncr53c8xx]
018242e4 ncr53c8xx_detect [ncr53c8xx]
01825514 ncr53c8xx_proc_info [ncr53c8xx]
01824714 ncr53c8xx_queue_command [ncr53c8xx]
018247c4 ncr53c8xx_reset [ncr53c8xx]
018247d4 ncr53c8xx_abort [ncr53c8xx]
018247f4 ncr53c8xx_release [ncr53c8xx]
01827488 driver_template [ncr53c8xx]
0182876c Using_Versions [ncr53c8xx]
0181c354 revalidate_scsidisk [sd_mod]
0181cf3c sd_template [sd_mod]
0181cffc sd [sd_mod]
0181cf38 rscsi_disks [sd_mod]
0181d000 Using_Versions [sd_mod]
0181c6c4 sd_ioctl [sd_mod]
01815184 scsi_register_module_R8eff1010 [scsi_mod]
01815214 scsi_unregister_module_Rd913b8f0 [scsi_mod]
01813cd4 scsi_free_R475dddfa [scsi_mod]
01813bd4 scsi_malloc_R1cce3f92 [scsi_mod]
01811074 scsi_register_R292232ff [scsi_mod]
01811004 scsi_unregister_R2038c955 [scsi_mod]
018160c4 scsicam_bios_param_R75e3ef10 [scsi_mod]
018122a4 allocate_device_Rd96c9339 [scsi_mod]
01812844 scsi_do_cmd_Reaee9c7d [scsi_mod]
01816d2b scsi_command_size_R7db01421 [scsi_mod]
01813da4 scsi_init_malloc_Re5167cbc [scsi_mod]
01813e24 scsi_init_free_R8b2721f8 [scsi_mod]
01815a34 scsi_ioctl_Rfff00aa8 [scsi_mod]
01815d24 print_command_R6f14cd75 [scsi_mod]
01815da4 print_sense_R919b0b19 [scsi_mod]
01815f74 print_msg_R0465f877 [scsi_mod]
01815d84 print_status_R32f84646 [scsi_mod]
01817d98 dma_free_sectors_Ra3218d12 [scsi_mod]
01815cd4 kernel_scsi_ioctl_R79b682bf [scsi_mod]
01817d9c need_isa_buffer_R2cb052fc [scsi_mod]
01812054 request_queueable_Rc1eb2d1b [scsi_mod]
01816044 print_Scsi_Cmnd_R4460341f [scsi_mod]
01813624 scsi_mark_host_reset_R6b55d306 [scsi_mod]
01813644 scsi_mark_bus_reset_Re43e03ff [scsi_mod]
018167c4 proc_print_scsidevice_R77009fbd [scsi_mod]
01817d74 scsi_hostlist_Rac29807f [scsi_mod]
01817d70 scsi_hosts_R822c05cb [scsi_mod]
01817d78 scsi_devicelist_R885437f5 [scsi_mod]
01817da8 scsi_devices_R72ad8ab4 [scsi_mod]

Kernel config:
#
# Automatically generated by make menuconfig: 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 is not set
CONFIG_SYSVIPC=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_JAVA=m
CONFIG_KERNEL_ELF=y
CONFIG_M486=y

#
# Floppy, IDE, and other block devices
#
CONFIG_BLK_DEV_FD=y
CONFIG_BLK_DEV_IDE=y
# CONFIG_BLK_DEV_HD_IDE is not set
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDE_PCMCIA is not set
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_BLK_DEV_RZ1000 is not set
CONFIG_BLK_DEV_TRITON=y
# CONFIG_IDE_CHIPSETS is not set
CONFIG_BLK_DEV_LOOP=m
# CONFIG_BLK_DEV_MD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_BLK_DEV_XD is not set
# 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 is not set
CONFIG_IP_MASQUERADE=y
# CONFIG_IP_TRANSPARENT_PROXY is not set
# CONFIG_IP_ALWAYS_DEFRAG is not set
# CONFIG_IP_ACCT is not set
# CONFIG_IP_ROUTER is not set
# CONFIG_NET_IPIP is not set
CONFIG_IP_MROUTE=y
CONFIG_IP_ALIAS=m
CONFIG_INET_PCTCP=y
# CONFIG_INET_RARP is not set
# CONFIG_NO_PATH_MTU_DISCOVERY is not set
CONFIG_IP_NOSR=y
CONFIG_SKB_LARGE=y
CONFIG_IPX=m
# CONFIG_IPX_INTERN is not set
# CONFIG_ATALK is not set
# CONFIG_AX25 is not set
# CONFIG_BRIDGE is not set
# CONFIG_NETLINK is not set

#
# SCSI support
#
CONFIG_SCSI=m
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set

#
# SCSI low-level drivers
#
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_NCR53C7xx is not set
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 is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_SEAGATE is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_ULTRASTOR is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
# CONFIG_EQUALIZER is not set
# CONFIG_DLCI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_SLIP is not set
# CONFIG_NET_RADIO is not set
CONFIG_NET_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_LANCE=y
# CONFIG_LANCE32 is not set
# CONFIG_NET_VENDOR_SMC is not set
CONFIG_NET_ISA=y
# CONFIG_AT1700 is not set
# CONFIG_E2100 is not set
# CONFIG_DEPCA is not set
# CONFIG_EWRK3 is not set
# CONFIG_EEXPRESS is not set
# CONFIG_EEXPRESS_PRO is not set
# CONFIG_FMV18X is not set
# CONFIG_HPLAN_PLUS is not set
# CONFIG_HPLAN is not set
# CONFIG_HP100 is not set
# CONFIG_ETH16I is not set
CONFIG_NE2000=m
# CONFIG_NI52 is not set
# CONFIG_NI65 is not set
# CONFIG_SEEQ8005 is not set
# CONFIG_SK_G16 is not set
# CONFIG_NET_EISA is not set
# CONFIG_NET_POCKET is not set
# CONFIG_TR is not set
# CONFIG_ARCNET is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# CD-ROM drivers (not for SCSI or IDE/ATAPI drives)
#
# CONFIG_CD_NO_IDESCSI is not set

#
# Filesystems
#
CONFIG_QUOTA=y
# CONFIG_LOCK_MANDATORY is not set
CONFIG_MINIX_FS=y
CONFIG_EXT_FS=m
CONFIG_EXT2_FS=y
# CONFIG_XIA_FS is not set
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
# CONFIG_UMSDOS_FS is not set
CONFIG_PROC_FS=y
CONFIG_NFS_FS=y
# CONFIG_ROOT_NFS is not set
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 is not set
CONFIG_UFS_FS=m
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_SMD_DISKLABEL is not set

#
# Character devices
#
CONFIG_SERIAL=y
# CONFIG_DIGI is not set
# CONFIG_CYCLADES is not set
# CONFIG_STALDRV is not set
# CONFIG_RISCOM8 is not set
CONFIG_PRINTER=m
# CONFIG_MOUSE is not set
# CONFIG_UMISC is not set
# CONFIG_QIC02_TAPE is not set
# CONFIG_FTAPE is not set
# CONFIG_APM is not set
# CONFIG_WATCHDOG is not set
# CONFIG_RTC is not set

#
# Sound
#
# CONFIG_SOUND is not set

#
# Kernel hacking
#
# CONFIG_PROFILE is not set