Fatal trap 12: page fault while in kernel mode

[fred]

Hi,



Recently my freebsd machine always dead, and the below error messages are gotten when reboot the machin, could anyone help me?



Jun 24 09:09:02 pearl kernel: Fatal trap 12: page fault while in kernel mode
Jun 24 09:09:02 pearl kernel: fault virtual address     = 0xe852eba9
Jun 24 09:09:02 pearl kernel: fault code                = supervisor read, page not present
Jun 24 09:09:02 pearl kernel: instruction pointer       = 0x8:0xc028dd4c
Jun 24 09:09:02 pearl kernel: stack pointer             = 0x10:0xda7f0b20
Jun 24 09:09:02 pearl kernel: frame pointer             = 0x10:0xda7f0b3c
Jun 24 09:09:02 pearl kernel: code segment              = base 0x0, limit 0xfffff, type 0x1b
Jun 24 09:09:02 pearl kernel: = DPL 0, pres 1, def32 1, gran 1
Jun 24 09:09:02 pearl kernel: processor eflags  = interrupt enabled, resume, IOPL = 0

The configuration of my machine is:

FreeBSD  5.0-DP1 FreeBSD 5.0-DP1 #0: Wed Aug 27 07:07:21 CST 2003     root@:/usr/src/sys/i386/compile/PEARL  i386

Thanks,
Fred Zhang