Apr 11 15:22:19 r093165 kernel: Unable to handle kernel NULL pointer
dereferenceApr 11 15:22:19 r093165 kernel: printing eip:
Apr 11 15:22:19 r093165 kernel: 00000000
Apr 11 15:22:19 r093165 kernel: *pde = 00000000
Apr 11 15:22:19 r093165 kernel: Oops: 0000
Apr 11 15:22:19 r093165 kernel: CPU: 0
Apr 11 15:22:19 r093165 kernel: EIP: 0010:[<00000000>]
Apr 11 15:22:19 r093165 kernel: EFLAGS: 00010282
Apr 11 15:22:19 r093165 kernel: eax: 00000000 ebx: c5130500 ecx: 00000040
Apr 11 15:22:19 r093165 kernel: esi: bffff6f4 edi: 00000000 ebp: 00000040
Apr 11 15:22:19 r093165 kernel: ds: 0018 es: 0018 ss: 0018
Apr 11 15:22:19 r093165 kernel: Process less (pid: 434, stackpage=c4cc9000)
Apr 11 15:22:19 r093165 kernel: Stack: c015af6d c5130500 bffff6f4 00000040
c5130Apr 11 15:22:19 r093165 kernel: c5130500 bffff6f4 00000040
c5130520 c4cc8Apr 11 15:22:19 r093165 kernel: c0108f77 00000004
bffff6f4 00000040 00000Apr 11 15:22:19 r093165 kernel: Call Trace:
[fat_file_read+45/52] [sys_read+143/Apr 11 15:22:19 r093165 kernel:
Apr 11 15:22:19 r093165 kernel: Code: Bad EIP value.
To My Hardware and configuration:
SCSI-Controller (Symbios Logic) and MO drive (Fujitsu M2513A):
/proc/scsi/ncr53c8xx/0:
Chip NCR53C810a, device id 0x1, revision id 0x12
On PCI bus 0, device 13, function 0, IRQ 9
Synchronous period factor 25, max commands per lun 32
Debug flags 0x200, verbosity level 1
/proc/scsi/scsi:
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: IBM Model: DCAS-34330 Rev: S65A
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 04 Lun: 00
Vendor: PLEXTOR Model: CD-R PX-W1210S Rev: 1.00
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 05 Lun: 00
Vendor: FUJITSU Model: M2513A Rev: 1700
Type: Optical Device ANSI SCSI revision: 02
Linux version (from /proc/version):
Linux version 2.4.2 (root@r093165) (gcc version 2.95.2 19991024 (release))
#26 SMP Wed Apr 11 15:18:28 CEST 2001
Processor (from /proc/cpuinfo):
processor : 0
vendor_id : GenuineIntel
cpu family : 5
model : 4
model name : Pentium MMX
stepping : 3
cpu MHz : 232.673
fdiv_bug : no
hlt_bug : no
f00f_bug : yes
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr mce cx8 mmx
bogomips : 463.66
from /proc/ioports:
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0213-0213 : isapnp read
0220-022f : soundblaster
02f8-02ff : serial(auto)
0300-031f : eth0
0330-0333 : MPU-401 UART
0376-0376 : ide1
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0a79-0a79 : isapnp write
0cf8-0cff : PCI conf1
6100-61ff : Symbios Logic Inc. (formerly NCR) 53c810
6100-617f : ncr53c8xx
6200-62ff : 3Dfx Interactive, Inc. Voodoo 3
f000-f00f : Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II]
from /proc/iomen:
00000000-0009fbff : System RAM
0009fc00-0009ffff : System RAM
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000c8000-000ca7ff : Extension ROM
000f0000-000fffff : System ROM
00100000-05ffffff : System RAM
00100000-0022e34b : Kernel code
0022e34c-002aabff : Kernel data
e0000000-e1ffffff : 3Dfx Interactive, Inc. Voodoo 3
e2000000-e3ffffff : 3Dfx Interactive, Inc. Voodoo 3
e4000000-e40000ff : Symbios Logic Inc. (formerly NCR) 53c810
ffff0000-ffffffff : reserved
Another remark: my MO-disks are FAT formatted and the data was written on
them using Linux with some 2.2.x kernel.
I hope this helps fixing the bug (or telling me what I've done wrong myself.
But I tried anything and the older kernels work without problems.).
Tobias Landes
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/