|
|
A system dump contains information about the state of the system at the time a panic occurred. A complete dump contains all physical pages, the state of memory, the state of all processes and other information to indicate the cause of the panic. Using a tool such as crash to examine a crash dump is the only way to diagnose the cause of a system problem after the fact. The crash command now offers a new function, kcrash, which provides additional kernel debugging functionality. See kcrash(1M) and Analyzing system dumps using kcrash.
In addition, four new commands are available to aid in examining a system dump: createbin, listbin, addbin (see createbin(1M)), and extstr(1M). The createbin file format is described on the new createbin(4) manual page.