Crash Processing

Crash processing for a partition's OS is similar to the crash processing on a non-vPars OS: the OS is quiesced, portions of memory are written to disk, and in the case of vPars, resources are released to the monitor.

After the monitor dump is written to disk, you can let the crash processing continue or you can enter the crash user interface:

To let the crash processing continue, do nothing.
To enter the crash user interface, press any key on the console.




	NOTE: HP recommends that you let crash processing continue.

Crash User Interface

If you enter the crash user interface, you will see messages similar to the following on the console:

Virtual Partition Activity at Time of Crash
   partition 0 (vpar1):       active
   partition 1 (vpar2):       active
   partition 2 (vpar3):       inactive
 
The active partitions will be invoked to perform
crash handling.  A soft reset will then be generated
to allow additional debugging.
 
TO OVERRIDE THIS BEHAVIOR, PRESS A KEY WITHIN 10 SECONDS....
 
CRASH PROCESS STOPPED.
 
Crash Command Menu
1.  Examine memory contents
2.  Continue with default crash handling
3.  Cause monitor crash dump to different device
4.  Soft reset the machine (memory preserved)
5.  Hard reset the machine (memory not preserved)
6.  Launch partition 0 (vpar1) for crash processing
7.  Launch partition 1 (vpar2) for crash processing
Enter number (1-7):

The menu choices mean:

displays memory from <starting address> for <n> 32-bit words. For example:

Enter Address: 0x1000 4
0x00001000 0x00000000 0x1200a000 0xaa400000 0x00000000
 
Enter Address: quit

continues with the default crash handling
allows you to chose an alternate device to which the monitor dump is written. The alternate device must contain the pre-allocated file /stand/vpmon.dmp. The file vpmon.dmp is automatically created in /stand of a partition's boot disk by the vPars startup script.
soft resets the current partition. This is similar to vparreset -p <partition> -t
hard resets the current partition. This is similar to vparreset -p <partition> -h
boots the specified partition for crash processing
boots the specified partition for crash processing

If you chose to invoke a partition for crash processing or to examine memory contents, you will be returned to this menu after those actions are completed (assuming no new crash event is encountered).

Crash Processing

Technical documentation

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Crash User Interface