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A-36 AlphaServer DS20L User’s Guide
NOTE: If the system has been shut down from a booted program (most commonly,
the operating system) or in some other way halted back to the SRM
console, the system must be reset before running LFU.
See Chapter 3 for more information about LFU.
A.14 Forcing a System Crash Dump
The crash command forces a crash dump at the operating system level.
This command is used when an error has caused the system to hang and
can be halted with the Halt button. This command restarts the operating
system and forces a crash dump to the selected device.
Syntax: crash [device]
where device is the name of the device to which the crash dump is written.
Example A– 19 Crash Command
>>> crash
CPU 0 restarting
DUMP: 401408 blocks available for dumping.
DUMP: 38535 required for a partial dump.
DUMP: 0x805001 is the primary swap with 401407, start our last 38534
: of dump at 362873, going to end (real end is one more, for header)
DUMP.prom: dev SCSI 1 3 0 4 400 0 0, block 131072
DUMP: Header to 0x805001 at 401407 (0x61fff)
DUMP.prom: dev SCSI 1 3 0 4 400 0 0, block 131072
DUMP: Dump to 0x805001: ..................: End 0x805001
DUMP.prom: dev SCSI 1 3 0 4 400 0 0, block 131072
DUMP: Header to 0x805001 at 401407 (0x61fff)
succeeded
halted CPU 0
halt code = 5
HALT instruction executed
PC = fffffc00004e2d64
>>>