Kernel oops in MPC8568MDS BSP

mike zheng mail4mz at
Fri Feb 1 06:29:43 EST 2008


I am using MPC8568MDS BSP on my board, which has same memory map as
MPC8568MDS board has. However I have kernel oops at
free_bootmem_with_active_regions() within do_init_bootmem(). Any idea
on this issue?



bootm 0x1000000 0x2000000 0x400000
## Booting image at 01000000 ...
  Image Name:   Linux-2.6.23
  Created:      2008-01-31  18:52:45 UTC
  Image Type:   PowerPC Linux Kernel Image (gzip compressed)
  Data Size:    1370100 Bytes =  1.3 MB
  Load Address: 00000000
  Entry Point:  00000000
  Verifying Checksum ... OK
  Uncompressing Kernel Image ... OK
## Loading RAMDisk Image at 02000000 ...
  Image Name:   uboot ext2 ramdisk rootfs
  Created:      2007-11-26   2:28:38 UTC
  Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
  Data Size:    4001113 Bytes =  3.8 MB
  Load Address: 00000000
  Entry Point:  00000000
  Verifying Checksum ... OK
  Booting using flat device tree at 0x400000
  Loading Ramdisk to 1fb6e000, end 1ff3ed59 ... OK
Using MPC85xx MDS machine description
Memory CAM mapping: CAM0=256Mb, CAM1=256Mb, CAM2=0Mb residual: 0Mb
Linux version 2.6.23 () (gcc version 4.1.2) #3 Thu Jan 31 13:52:40 EST 2008
Found initrd at 0xdfb6e000:0xdff3ed59
console [udbg0] enabled

Kernel BUG at c0296a68 [verbose debug info unavailable]
Oops: Exception in kernel mode, sig: 5 [#1]
Modules linked in:
NIP: c0296a68 LR: c0298100 CTR: 00001c00
REGS: c02c7ec0 TRAP: 0700   Not tainted  (2.6.23)
MSR: 00021000 <ME>  CR: 24002028  XER: 20000000
TASK = c02ac5e0[0] 'swapper' THREAD: c02c6000
GPR00: 00000001 c02c7f70 c02ac5e0 c02daa2c 0001e401 20000000 00000000
GPR08: 00000001 00000000 25e90000 25e90000 24002022 60000000 1ffbd400
GPR16: 00000000 1ffb9824 00000004 1fffc830 00800000 00000000 007ffeb0
GPR24: 00000000 1ff3fe50 00001140 c02b0000 00000000 c02a5320 00020000
Call Trace:
[c02c7f90] [c0291144]
[c02c7fb0] [c028f250]
[c02c7fc0] [c028681c]
[c02c7ff0] [c0000388]
Instruction dump:
5489e8fa 7d000030 7d295a14 7d604828 7d6a0078 7d40492d 40a2fff4
38840001 4182000c 4200ffd0 4e800020 <0fe00000> 48000000 3d20c02b
Kernel panic - not syncing: Attempted to kill the idle task!

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