HP 748 Owner's Manual page 129

Dealing With Problems
Recovering from a System Panic
Proceed to Step 3, Rebooting Your System.
Step 2d: Recovering from Other Situations
When you suspect the problem was something other than the above (or when
you do not know where to classify it), proceed to Step 3, Rebooting Your
System. In this case, it is especially important that you write down the exact
text of the panic message, just in case you need it for future troubleshooting
or help from HP service personnel.
Step 3: Rebooting Your System
Once you have checked for and corrected any problems from Step 2, you are
ready to reboot your system. You can reboot your system using the Reset
switch on the panel of the Model 743/744. Otherwise, you can turn the sys-
tem off and then back on to initiate the boot sequence.
You will probably notice a few differences in boot behavior as compared
with your normal boot sequence. Your system might save a "core" file to
disk. This core file is a "snapshot" of the previously running kernel at the
time that it panicked. If necessary, this core file can be analyzed using spe-
cial tools to determine more about what caused the panic.
NOTE: For HP-UX, core files are quite large and, if your system is so configured,
they are saved to the directory /tmp/syscore (HP-UX 9.x) or /var/adm/crash
(HP-UX 10.x) . If you feel you need to save these files for future analysis
(something that isn't usually required), it is best to save them to tape and
remove them from your file system in order to free up space. If you know why
your system panicked, you can delete the core files. Core files are used in rare
circumstances to diagnose hard-to-find causes of system panics.
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