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Disable HP rp4440 processor

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Operating Systems HP-UX Disable HP rp4440 processor
# 1  
Old 12-03-2009
Disable HP rp4440 processor
hi,
I have an rp4440 running HP-UX, it crashed suddenly and it goes in to cyclic restart. we suspect it is CPU issue see this log:

Code:
------------------------------------------------------------------------------
   (c) Copyright 1995-2004, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------
   
    Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      800  MHz   Stopped:Deconfigured   Unknown            0 0
      1      800  MHz   Active                 Functional         67108864 67108864
   
    Central Bus Speed (in MHz)  :        200  
  Available Memory            :    8388608  KB
  Good Memory Required        : Not initialized. Defaults to 32 MB.

and in the booting gives this panic error:
Code:
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  linkstamp:          Sat Aug 22 02:05:27 CAT 2009
_release_version:   @(#)                        $Revision: vmunix:    vw: -proj    selectors: CUPI80_BL2000_1108 -c 'Vw for CUPI80_BL2000_1108 build' -- cupi80_bl2000_1108 'CUPI80_BL2000_1108'  Wed Nov  8 19:24:56 PST 2000 $
panic: all VFS_MOUNTROOTs failed: NEED DRIVERS ????? 
   
  PC-Offset Stack Trace (read across, top of stack is 1st):
  0x0020d758  0x00305980  0x003582d8
  0x00472dbc  0x00358d50  0x00176374
  0x001fb464
End Of Stack
   
  sync'ing disks (0 buffers to flush): (0 buffers to flush):
0 buffers not flushed
0 buffers still dirty

we order new processor but i want to try disable the faulty processor from the console level to let the box start..
does any one know how to disable the faulty CPU??
# 2  
Old 12-03-2009
Can you tell us where the logs you put in tags are from? Since its cyclicaly rebooting?
(GPM? console?)
# 3  
Old 12-06-2009
it is from the console during the booting ..
# 4  
Old 12-09-2009
this is an update
the CPU recovered, it was stopped/deconfigured , we have done hard reset after configure it from the beginning :

Code:
>CPU 0 ON

this the status :

Code:
------------------------------------------------------------------------------
   (c) Copyright 1995-2004, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      800  MHz   Idle                   Functional         67108864 67108864
      1      800  MHz   Active                 Functional         67108864 67108864

but still we can't boot directly, and the panic message still appear , any one know any work around ....
# 5  
Old 12-15-2009
we reinstall the HP-Ux from scratch, we couldn't find any alternative soulution
# 6  
Old 12-15-2009
There was maybe simply no more bootable device...In your log You had:
Code:
panic: all VFS_MOUNTROOTs failed: NEED DRIVERS ?????

I seen a case where the mirror wasnt done properly and the faulty disk was the only bootable...
You are in big trouble if no ignite tape or image around you have...
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