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SubjectRe: oopses
I was getting these on a system running 2.0.27 I replaced the ram and they
went away, the system was stable up til a few days ago...

On Thu, 20 Mar 1997, Oskar Pearson wrote:

Ok - I am a newbee with this oops debug stuff, so flame me!

Linux oztop.is.co.za 2.0.28 #3 Thu Mar 20 16:28:32 GMT+2 1997 i586 unknown

Multiple oopses close together...

Unable to handle kernel paging request at virtual address c4000000
current->tss.cr3 = 0088a000,
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<001232a8>]
EFLAGS: 00010206
eax: 04000000 ebx: 00a30302 ecx: 00000400 edx: 000033a9
esi: 0001739a edi: 00000302 ebp: 00017098 esp: 00839e94
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process ld (pid: 596, process nr: 24, stackpage=00839000)
Stack: 00a36908 00017098 00000302 00000003 002d25d0 001248d9 00000302 00017098
00000400 00839f40 00000428 00000000 002d25d0 00017098 00000302 00000100
00a364c8 00820302 00000000 00a364c8 00a3650c 00a36440 00839f3c 00000427
Call Trace: [<001248d9>] [<00124cf7>] [<0011b946>] [<0011ba1a>] [<001215e6>] [<0010a635>]
Code: 39 28 75 28 66 39 58 04 75 22 8b 4c 24 20 39 48 20 74 22 57

>>EIP: 1232a8 <get_hash_table+30/b4>
Trace: 1248d9 <brw_page+139/35c>
Trace: 124cf7 <generic_readpage+73/80>
Trace: 11b946 <generic_file_read+40e/5b4>
Trace: 11ba1a <generic_file_read+4e2/5b4>
Trace: 1215e6 <sys_read+8a/b0>
Trace: 10a635 <system_call+55/80>

Code: 1232a8 <get_hash_table+30/b4> cmpl %ebp,(%eax)
Code: 1232aa <get_hash_table+32/b4> jne 1232d4 <get_hash_table+5c/b4>
Code: 1232ac <get_hash_table+34/b4> cmpw %bx,0x4(%eax)
Code: 1232b0 <get_hash_table+38/b4> jne 1232d4 <get_hash_table+5c/b4>
Code: 1232b2 <get_hash_table+3a/b4> movl 0x20(%esp,1),%ecx
Code: 1232b6 <get_hash_table+3e/b4> cmpl %ecx,0x20(%eax)
Code: 1232b9 <get_hash_table+41/b4> je 1232dd <get_hash_table+65/b4>
Code: 1232bb <get_hash_table+43/b4> pushl %edi
Code: 1232bc <get_hash_table+44/b4>

If I try and run the command again, it goes into endless disk wait

=======================
Unable to handle kernel paging request at virtual
address c4000000
current->tss.cr3 = 00342000,
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<001232a8>]
EFLAGS: 00010206
eax: 04000000 ebx: 00030302 ecx: 00817088 edx: 000033a9
esi: 00033385 edi: 00000302 ebp: 00033087 esp: 007f1e14
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process find (pid: 698, process nr: 26, stackpage=007f1000)
Stack: 00033087 00000001 00810302 00000400 00202040 00123a82 00000302 00033087
00000400 00033087 00000000 00817000 00000000 00081000 00000302 0015857c
00000302 00033087 00000400 00000008 00000000 007f1f44 00817000 00000002
Call Trace: [<00123a82>] [<0015857c>] [<00158ab4>] [<00158ded>] [<001567ac>] [<0012a686>] [<0012abf7>]
[<00120f95>] [<0012c507>] [<0012c3cc>] [<0010a635>]
Code: 39 28 75 28 66 39 58 04 75 22 8b 4c 24 20 39 48 20 74 22 57

>>EIP: 1232a8 <get_hash_table+30/b4>
Trace: 123a82 <getblk+3a/468>
Trace: 15857c <inode_getblk+44/198>
Trace: 158ab4 <ext2_getblk+b8/22c>
Trace: 158ded <ext2_bread+1d/7c>
Trace: 1567ac <ext2_readdir+e0/618>
Trace: 12a686 <lookup+da/f4>
Trace: 12abf7 <open_namei+273/3c8>
Trace: 120f95 <do_open+59/124>
Trace: 12c507 <sys_getdents+97/c8>
Trace: 12c3cc <filldir>
Trace: 10a635 <system_call+55/80>

Code: 1232a8 <get_hash_table+30/b4> cmpl %ebp,(%eax)
Code: 1232aa <get_hash_table+32/b4> jne 1232d4 <get_hash_table+5c/b4>
Code: 1232ac <get_hash_table+34/b4> cmpw %bx,0x4(%eax)
Code: 1232b0 <get_hash_table+38/b4> jne 1232d4 <get_hash_table+5c/b4>
Code: 1232b2 <get_hash_table+3a/b4> movl 0x20(%esp,1),%ecx
Code: 1232b6 <get_hash_table+3e/b4> cmpl %ecx,0x20(%eax)
Code: 1232b9 <get_hash_table+41/b4> je 1232dd <get_hash_table+65/b4>
Code: 1232bb <get_hash_table+43/b4> pushl %edi
Code: 1232bc <get_hash_table+44/b4> ->should it just stop here?

Seems like disk corruption?

These things come in really fast with 2.0.29 too.

It seems to happen often when I don't have swap (single user mode...)
and can crash while fsck'ing. At this stage there is still more than
10M free.

# This config has EVERYTING in it, it's my laptop, so I generally don't mind
# if it dies on me. I want a perfect world and a stable kernel tho ;)
# 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=y
CONFIG_SYSVIPC=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_JAVA is not set
CONFIG_KERNEL_ELF=y
CONFIG_M586=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=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 is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_LINEAR=y
CONFIG_MD_STRIPED=y
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_DEV_HD is not set

#
# Networking options
#
# CONFIG_FIREWALL is not set
CONFIG_NET_ALIAS=y
CONFIG_INET=y
CONFIG_IP_FORWARD=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ACCT is not set
# CONFIG_IP_ROUTER is not set
CONFIG_NET_IPIP=y
# CONFIG_IP_MROUTE is not set
CONFIG_IP_ALIAS=y
# CONFIG_INET_PCTCP is not set
# CONFIG_INET_RARP is not set
# CONFIG_NO_PATH_MTU_DISCOVERY is not set
CONFIG_IP_NOSR=y
CONFIG_SKB_LARGE=y
# CONFIG_IPX 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 is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
# CONFIG_EQUALIZER is not set
# CONFIG_DLCI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=y
CONFIG_SLIP=y
CONFIG_SLIP_COMPRESSED=y
# CONFIG_SLIP_SMART is not set
# CONFIG_SLIP_MODE_SLIP6 is not set
# CONFIG_NET_RADIO is not set
# CONFIG_NET_ETHERNET is not set
# CONFIG_TR is not set
# CONFIG_FDDI 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 is not set
CONFIG_EXT2_FS=y
# CONFIG_XIA_FS is not set
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
# CONFIG_UMSDOS_FS is not set
CONFIG_PROC_FS=y
CONFIG_NFS_FS=y
# CONFIG_ROOT_NFS is not set
# CONFIG_SMB_FS is not set
CONFIG_ISO9660_FS=y
# CONFIG_HPFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_UFS_FS 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=y
CONFIG_MOUSE=y
# CONFIG_ATIXL_BUSMOUSE is not set
# CONFIG_BUSMOUSE is not set
# CONFIG_MS_BUSMOUSE is not set
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_UMISC is not set
# CONFIG_QIC02_TAPE is not set
# CONFIG_FTAPE is not set
CONFIG_APM=y
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
CONFIG_APM_DO_ENABLE=y
CONFIG_APM_CPU_IDLE=y
CONFIG_APM_DISPLAY_BLANK=y
CONFIG_APM_POWER_OFF=y
# CONFIG_WATCHDOG is not set
# CONFIG_RTC is not set

#
# Sound
#
CONFIG_SOUND=y
# CONFIG_PAS is not set
CONFIG_SB=y
CONFIG_ADLIB=y
# CONFIG_GUS is not set
# CONFIG_MPU401 is not set
# CONFIG_UART6850 is not set
# CONFIG_PSS is not set
# CONFIG_GUS16 is not set
# CONFIG_GUSMAX is not set
CONFIG_MSS=y
# CONFIG_SSCAPE is not set
# CONFIG_TRIX is not set
# CONFIG_MAD16 is not set
# CONFIG_CS4232 is not set
# CONFIG_MAUI is not set
CONFIG_AUDIO=y
CONFIG_MIDI=y
CONFIG_YM3812=y
SBC_BASE=220
SBC_IRQ=7
SBC_DMA=1
SB_DMA2=5
SB_MPU_BASE=0
SB_MPU_IRQ=-1
MSS_BASE=530
MSS_IRQ=11
MSS_DMA=3
DSP_BUFFSIZE=65536
# CONFIG_LOWLEVEL_SOUND is not set

#
# Kernel hacking
#
# CONFIG_PROFILE is not set

So. Any ideas? Anyone having a similar problem?

Oskar

=============================================
'experience made art, but inexperience luck.'
=============================================


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