Unusual abend on RH 6.2 shutdown

[Malassimilation at aol.com]

Please help me diagnose an unusual abend:

Whem i'm shutting down a RH 6.2 server, I get to the "stopping all MD 
devices" line, which is usually the last before the "Power Down" message, but 
then the machine dies.

I get a call trace, and then it says:

Code: <1>Unable to handle kernel paging request at  virtual address 0000872f
current->tss.cr3 = 02bac000, %cr3 = 02bac000
*pde = 00000000
Oops: 0000
CPU:     0
EIP:       0010:[<c010a481>]
EFLAGS: 00010046
eax:  00000000       ebx: 00000000      ecx: 0000872f    edx: 00000001
esi:   0000002b       edi:  c214c000      ebp: c4800000   esp: c214bd68
ds:  0018      es: 0018    ss: 0018
Process halt (pid: 1076, process nr: 19, stackpage=c214b000)
Stack:  fee1dead  [rest snipped]

The machine doesn't respond to the keyboard, except for the screensaver, 
which still works.

Anyway, all help and ideas welcome, and thanks in advance.

Bill 
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