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SubjectOops with K6-2 350, but not with other CPUs.

Hi guys,
am having many random fatal oopses with my K6-2 350. Can't find
anything related on the mailing list archive, so here it is. Also, I'm
not subscribed to the mailing list but do read it via NNTP, a CC: would
be much appreciated :). TIA.

On the chip it has "AMD K6-2/350 AFR" and "A 9852MPM" and "1998 MALAY" if
that helps. The problem is that I get random crashes with it, but not when
I replace it with a Cyrix P200+ or Cyrix P200MX. I've tried it at
66x5=330Mhz along with different memory, different video card, IDE CDROM
instead of SCSI disks, etc, with similar results. The kernel for the
oopses below is 2.2.17-pre19, but I've also tried 2.2.16 and 2.2.14 with
the same results.

The crashes appear with different processes, sometimes ls, usually the
swapper. The oops below is with gpm, but I suspect it has nothing to do
with gpm. The system usually runs for between 1 and 5 minutes before a
crash, and most are fatal and won't sync. About half the crashes are when
the system is apparently idle.

I have no idea about C so can't debug it myself, but the gdb assembler
dump line for the do_int3 is:
0xc010a4e4 <do_int3+72>: testb $0x3,0x2c(%ebx)
Hope that helps.

If I've left out any valuable info, please let me know.

So the question is, is my CPU stuffed, or is something set up wrong?
BTW, the CPU works fine in bloatware 95 if that narrows it down.

Thanks,
Daniel. :)


System:
AMD K6-2 350
Epox MVP3GM, latest BIOS
64Mb Apacer PC100
Asus NCR875 SCSI
Seagate Barracuda 4LP
Quantum Atlas IV
Panasonic CR508B
Millenium II 4Mb
NE2000 PCI
serial mouse + kb

Two successive oopses and kernel config (2.2.17-pre19) follow:



No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Unable to handle kernel NULL pointer dereference at virtual address 00000004
current->tss.cr3 = 028ea000, %cr3 = 028ea000
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<00000004>]
EFLAGS: 00010296
eax: c022bc20 ebx: c23d14a0 ecx: 00000000 edx: 00000000
esi: c2927540 edi: ffffffe9 ebp: c2957080 esp: c28e9f6c
ds: 0018 es: 0018 ss: 0018
Process gpm (pid: 423, process nr: 23, stackpage=c28e9000)
Stack: 00000004 08048000 c024cf8e c2927540 ffffffe9 c2957080 c022bc20 c23d14a0
00000000 00000000 00000004 00010296 04000000 c5000000 c010a4e4 c28e9f30
c01defb8 c01e0a2e 00000000 00000000 c010f758 c01e0a2e c28e9f30 00000000
Call Trace: [<c5000000>] [<c010a4e4>] [<c01defb8>] [<c01e0a2e>] [<c010f758>] [<c01e0a2e>] [<c010a125>]
[<c01e3c44>] [<c0126b00>] [<c0125a68>] [<c0125c46>] [<c010a020>]
Code: 8a 04 0b 89 44 24 38 50 68 b0 ef 1d c0 e8 81 9e 00 00 83 c4

>>EIP: 00000004 Before first symbol
Trace: c5000000 <END_OF_CODE+4df68b8/????>
Trace: c010a4e4 <do_int3+48/60>
Trace: c01defb8 <mtrr_setup+88/a4>
Trace: c01e0a2e <pci_check_direct+32/cc>
Trace: c010f758 <remap_area_pages+10/250>
Trace: c01e0a2e <pci_check_direct+32/cc>
Trace: c010a125 <show_registers+21/2c0>
Trace: c01e3c44 <floppy_init+c0/3d8>
Code: 00000004 Before first symbol 00000000 <_EIP>: <===
Code: 00000004 Before first symbol 0: 8a 04 0b mov (%ebx,%ecx,1),%al <===
Code: 00000007 Before first symbol 3: 89 44 24 38 mov %eax,0x38(%esp,1)
Code: 0000000b Before first symbol 7: 50 push %eax
Code: 0000000c Before first symbol 8: 68 b0 ef 1d c0 push $0xc01defb0
Code: 00000011 Before first symbol d: e8 81 9e 00 00 call 00009e97 Before first symbol
Code: 00000016 Before first symbol 12: 83 c4 00 add $0x0,%esp



No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Unable to handle kernel NULL pointer dereference at virtual address 00000004
current->tss.cr3 = 028ea000, %cr3 = 028ea000
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<00000004>]
EFLAGS: 00010296
eax: c022bc20 ebx: c23d14a0 ecx: 00000000 edx: 00000000
esi: c2927540 edi: ffffffe9 ebp: c2957080 esp: c28e9f6c
ds: 0018 es: 0018 ss: 0018
Process gpm (pid: 423, process nr: 23, stackpage=c28e9000)
Stack: c01e3c44 c021e7a0 c0126b00 00000004 00000000 c23d14a0 c2957080 c2927540
c0125a68 c2927540 c23d14a0 00000002 c2753000 00000000 bffffdb8 c0125c46
c2753000 00000000 4010a1ec c28e8000 ffffffff c010a020 08052d9e 00000000
Call Trace: [<c01e3c44>] [<c0126b00>] [<c0125a68>] [<c0125c46>] [<c010a020>]
Code: 8a 04 0b 89 44 24 38 50 68 b0 ef 1d c0 e8 81 9e 00 00 83 c4

>>EIP: 00000004 Before first symbol
Trace: c01e3c44 <floppy_init+c0/3d8>
Trace: c0126b00 <refile_buffer+4/b8>
Trace: c0125a68 <check_disk_change+74/98>
Trace: c0125c46 <get_empty_filp+36/130>
Trace: c010a020 <device_not_available+24/3c>
Code: 00000004 Before first symbol 00000000 <_EIP>: <===
Code: 00000004 Before first symbol 0: 8a 04 0b mov (%ebx,%ecx,1),%al <===
Code: 00000007 Before first symbol 3: 89 44 24 38 mov %eax,0x38(%esp,1)
Code: 0000000b Before first symbol 7: 50 push %eax
Code: 0000000c Before first symbol 8: 68 b0 ef 1d c0 push $0xc01defb0
Code: 00000011 Before first symbol d: e8 81 9e 00 00 call 00009e97 Before first symbol
Code: 00000016 Before first symbol 12: 83 c4 00 add $0x0,%esp

#
# Automatically generated by make menuconfig: don't edit
#

#
# Code maturity level options
#
# CONFIG_EXPERIMENTAL is not set

#
# Processor type and features
#
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
CONFIG_M586TSC=y
# CONFIG_M686 is not set
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_TSC=y
CONFIG_1GB=y
# CONFIG_2GB is not set
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
# CONFIG_SMP is not set

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

#
# General setup
#
CONFIG_NET=y
CONFIG_PCI=y
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GODIRECT is not set
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_QUIRKS=y
CONFIG_PCI_OLD_PROC=y
# CONFIG_MCA is not set
# CONFIG_VISWS is not set
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set
CONFIG_PARPORT=m
# CONFIG_PARPORT_PC is not set
CONFIG_APM=y
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
# CONFIG_APM_DO_ENABLE is not set
# CONFIG_APM_CPU_IDLE is not set
# CONFIG_APM_DISPLAY_BLANK is not set
# CONFIG_APM_IGNORE_SUSPEND_BOUNCE is not set
# CONFIG_APM_RTC_IS_GMT is not set
# CONFIG_APM_ALLOW_INTS is not set
# CONFIG_APM_REAL_MODE_POWER_OFF is not set
# CONFIG_TOSHIBA is not set

#
# Plug and Play support
#
CONFIG_PNP=y
# CONFIG_PNP_PARPORT is not set

#
# Block devices
#
CONFIG_BLK_DEV_FD=y
# CONFIG_BLK_DEV_IDE is not set
# CONFIG_BLK_DEV_HD_ONLY is not set
CONFIG_BLK_DEV_LOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_PARIDE_PARPORT=m
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_DEV_HD is not set

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_NETLINK is not set
# CONFIG_FIREWALL is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_IP_ROUTER is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_ALIAS is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_RARP is not set
CONFIG_SKB_LARGE=y
# CONFIG_IPX is not set
# CONFIG_ATALK is not set

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

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD 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_IPS is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID 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_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_NCR53C8XX is not set
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=4
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_SEAGATE is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_ULTRASTOR is not set

#
# I2O device support
#
# CONFIG_I2O is not set
# CONFIG_I2O_PCI is not set
# CONFIG_I2O_BLOCK is not set
# CONFIG_I2O_SCSI is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# 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_EISA=y
# CONFIG_PCNET32 is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
# CONFIG_DE4X5 is not set
# CONFIG_DEC_ELCP is not set
# CONFIG_DEC_ELCP_OLD is not set
# CONFIG_DGRS is not set
# CONFIG_EEXPRESS_PRO100 is not set
CONFIG_NE2K_PCI=y
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SIS900 is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_SLIP is not set
# CONFIG_NET_RADIO is not set

#
# Token ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set

#
# Wan interfaces
#
# CONFIG_HOSTESS_SV11 is not set
# CONFIG_COSA is not set
# CONFIG_SEALEVEL_4021 is not set
# CONFIG_SYNCLINK_SYNCPPP is not set
# CONFIG_LANMEDIA is not set
# CONFIG_COMX is not set
# CONFIG_DLCI is not set
# CONFIG_WAN_DRIVERS is not set
# CONFIG_SBNI 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

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
# CONFIG_SERIAL_CONSOLE is not set
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=m
# CONFIG_PRINTER_READBACK is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
CONFIG_JOYSTICK=m
CONFIG_JOY_ANALOG=m
# CONFIG_JOY_ASSASSIN is not set
# CONFIG_JOY_GRAVIS is not set
# CONFIG_JOY_LOGITECH is not set
# CONFIG_JOY_SIDEWINDER is not set
# CONFIG_JOY_THRUSTMASTER is not set
# CONFIG_JOY_CREATIVE is not set
# CONFIG_JOY_LIGHTNING is not set
# CONFIG_JOY_PCI is not set
# CONFIG_JOY_MAGELLAN is not set
# CONFIG_JOY_SPACEORB is not set
# CONFIG_JOY_SPACEBALL is not set
# CONFIG_JOY_WARRIOR is not set
# CONFIG_JOY_CONSOLE is not set
# CONFIG_JOY_DB9 is not set
# CONFIG_JOY_TURBOGRAFX is not set
# CONFIG_QIC02_TAPE is not set
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set

#
# Video For Linux
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DTLK is not set

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

#
# Filesystems
#
# CONFIG_QUOTA is not set
CONFIG_AUTOFS_FS=y
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
CONFIG_FAT_FS=y
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
CONFIG_VFAT_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
CONFIG_DEVPTS_FS=y
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_NFS_FS is not set
# CONFIG_SUNRPC is not set
# CONFIG_LOCKD is not set
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set

#
# Partition Types
#
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_MAC_PARTITION is not set
# CONFIG_SMD_DISKLABEL is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_DEFAULT="cp437"
CONFIG_NLS_CODEPAGE_437=y
# 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_874 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
CONFIG_NLS_ISO8859_1=y
# 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_8 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set

#
# Console drivers
#
CONFIG_VGA_CONSOLE=y
# CONFIG_VIDEO_SELECT is not set

#
# Sound
#
# CONFIG_SOUND is not set

#
# Kernel hacking
#
# CONFIG_MAGIC_SYSRQ is not set

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