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Subjectcrashme crashes 2.0.20 with guarantee :-(
Date
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	Hello,

Every short invokation of crashme crashes linux badly. These are two OOPSes I
was able to catch (others just hang the system totally).

Crashme: (c) Copyright 1990-1994 George J. Carrette
Version: 2.1 6-MAY-1994
crashme +2000 666 50 00:01:00 2
Subprocess run for 60 seconds (0 00:01:00)
Unable to handle kernel NULL pointer dereference at virtual address c0000004
current->tss.cr3 = 00101000, %cr3 = 00101000
*pde = 00102067
*pte = 00000027
Oops: 0002
CPU: 0
EIP: 0010:[<0012044d>]
EFLAGS: 00010002
eax: 00000000 ebx: ffffffff ecx: 00000000 edx: 001fcc74
esi: 00000b50 edi: 000005a8 ebp: 001b9d04 esp: 002e6ee0
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process crashme (pid: 300, process nr: 33, stackpage=002e6000)
Stack: 00000000 011a2148 0004c000 002e4080 00000212 0011941f 00b50000 00000000
00d02798 006cbc98 00d02858 0133a0bc 00b50000 00052000 08052000 002e4080
0011b63b 006cbc98 0804c000 00006000 00d02798 006cbc98 002e6fbc 0000000b
Call Trace: [<0011941f>] [<0011b63b>] [<001161cb>] [<0010a174>] [<0010a323>]
[<0010a5b9>] [<0010a7b2>]
Code: 89 41 04 89 08 01 db 83 c5 0c c1 ef 01 21 de 83 fb e0 75 c7

Using `/usr/src/linux/System.map' to map addresses to symbols.

>>EIP: 12044d <free_pages+cd/110>
Trace: 11941f <zap_page_range+11f/1b0>
Trace: 11b63b <exit_mmap+7b/b0>
Trace: 1161cb <do_exit+ab/1f0>
Trace: 10a174 <setup_frame+44/190>
Trace: 10a323 <handle_signal+63/a0>
Trace: 10a5b9 <do_signal+259/2b0>
Trace: 10a7b2 <signal_return+12/40>

Code: 12044d <free_pages+cd/110> movl %eax,0x4(%ecx)
Code: 120450 <free_pages+d0/110> movl %ecx,(%eax)
Code: 120452 <free_pages+d2/110> addl %ebx,%ebx
Code: 120454 <free_pages+d4/110> addl $0xc,%ebp
Code: 120457 <free_pages+d7/110> shrl $0x1,%edi
Code: 12045a <free_pages+da/110> andl %ebx,%esi
Code: 12045c <free_pages+dc/110> cmpl $0xffffffe0,%ebx
Code: 12045f <free_pages+df/110> jne ffffffdb <_EIP+ffffffdb>
Code: 120461 <free_pages+e1/110>
Crashme: (c) Copyright 1990-1994 George J. Carrette
Version: 2.1 6-MAY-1994
crashme +2000 666 50 00:01:00 2
Subprocess run for 60 seconds (0 00:01:00)
Unable to handle kernel NULL pointer dereference at virtual address c0000004
current->tss.cr3 = 00101000, %cr3 = 00101000
*pde = 00102067
*pte = 00000027
Oops: 0002
CPU: 0
EIP: 0010:[<0012044d>]
EFLAGS: 00010002
eax: 00000000 ebx: ffffffff ecx: 00000000 edx: 0020d1ac
esi: 00001056 edi: 0000082b ebp: 001b9d04 esp: 01046f20
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process crashme (pid: 444, process nr: 34, stackpage=01046000)
Stack: 00000000 0102d130 0004b000 00fe9080 00000216 0011941f 01056000 00000000
005aca18 008d7f18 005aca58 00000000 01056000 0004c000 0804c000 00fe9080
0011b63b 008d7f18 0804b000 00001000 005aca18 008d7f18 01046fbc ffffffff
Call Trace: [<0011941f>] [<0011b63b>] [<001161cb>] [<0010a5ab>] [<0010a7b2>]
Code: 89 41 04 89 08 01 db 83 c5 0c c1 ef 01 21 de 83 fb e0 75 c7
Using `/usr/src/linux/System.map' to map addresses to symbols.

>>EIP: 12044d <free_pages+cd/110>
Trace: 11941f <zap_page_range+11f/1b0>
Trace: 11b63b <exit_mmap+7b/b0>
Trace: 1161cb <do_exit+ab/1f0>
Trace: 10a5ab <do_signal+24b/2b0>
Trace: 10a7b2 <signal_return+12/40>

Code: 12044d <free_pages+cd/110> movl %eax,0x4(%ecx)
Code: 120450 <free_pages+d0/110> movl %ecx,(%eax)
Code: 120452 <free_pages+d2/110> addl %ebx,%ebx
Code: 120454 <free_pages+d4/110> addl $0xc,%ebp
Code: 120457 <free_pages+d7/110> shrl $0x1,%edi
Code: 12045a <free_pages+da/110> andl %ebx,%esi
Code: 12045c <free_pages+dc/110> cmpl $0xffffffe0,%ebx
Code: 12045f <free_pages+df/110> jne ffffffdb <_EIP+ffffffdb>
Code: 120461 <free_pages+e1/110>
#
# 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 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 is not set
# CONFIG_IDE_CHIPSETS is not set

#
# 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 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 is not set
# CONFIG_IP_MULTICAST is not set
CONFIG_IP_FIREWALL=y
CONFIG_IP_FIREWALL_VERBOSE=y
CONFIG_IP_ACCT=y
CONFIG_IP_ALIAS=m

#
# (it is safe to leave these untouched)
#
# 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 is not set

#
#
#
# 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=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y

#
# 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=y
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_SYNC_NEGO=y
# CONFIG_SCSI_NCR53C8XX_DISABLE_MPARITY_CHECK is not set
# CONFIG_SCSI_NCR53C8XX_DISABLE_PARITY_CHECK is not set
CONFIG_SCSI_NCR53C8XX=y
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=y
# 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 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 is not set
# CONFIG_EQUALIZER is not set
# CONFIG_DLCI is not set
# CONFIG_PLIP is not set
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 is not set
# CONFIG_NET_RADIO is not set
# CONFIG_NET_ETHERNET 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=y
CONFIG_MINIX_FS=m
# CONFIG_EXT_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_XIA_FS is not set
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
# CONFIG_VFAT_FS is not set
CONFIG_UMSDOS_FS=m
CONFIG_PROC_FS=y
# CONFIG_NFS_FS is not set
# CONFIG_SMB_FS is not set
CONFIG_ISO9660_FS=m
# 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 is not set
# 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=m
# CONFIG_LOWLEVEL_SOUND is not set

#
# Kernel hacking
#
# CONFIG_PROFILE is not set
Best regards, -- Boris.
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