HP-UX HB v13.00 Ch-08 - Crash Dumps

HP-UX Handbook – Rev 13.00 Page 3 (of 38)
Chapter 08 Crash Dumps
October 29, 2013
TABLE OF CONTENTS
A little bit of theory ________________________________________________________________ 4
Crash events ____________________________________________________________________________ 4
What happens when a system crashes? _______________________________________________________ 6
How to configure dump devices _____________________________________________________ 10
Choosing dump devices __________________________________________________________________ 10
Configuration steps ______________________________________________________________________ 11
The dump/savecrash process _______________________________________________________ 13
Writing the memory image to the dump devices _______________________________________________ 13
Saving the dump to the filesystem __________________________________________________________ 17
Analysis of the dump ______________________________________________________________ 19
About the crashinfo utility ________________________________________________________________ 19
How to obtain and install and execute crashinfo _______________________________________________ 19
About the stack trace ____________________________________________________________________ 21
Analysis beyond standard crashinfo output ___________________________________________________ 23
crashinfo output example _________________________________________________________________ 30
Patches related to crash dumps ____________________________________________________________ 36
Additional information ____________________________________________________________ 38