CRASH(8) BSD System Manager's Manual CRASH(8)NAMEcrash — examine and debug system images
SYNOPSIScrash [-M core] [-N kernel]
DESCRIPTION
The crash command is used to examine and debug system images.
If run without any arguments, crash operates on the running system.
The options are as follows:
-M core Operate on the specified crash dump instead of the default
/dev/mem. Crash dumps should be from the same version of
the system and same machine architecture as the running
version of crash, and must be uncompressed.
-N kernel Extract the name list from the specified kernel instead of
the default /dev/ksyms.
The command syntax used by crash is the same as the in-kernel debugger.
See the ddb(4) manual page for more information.
Operations and facilities that require a running system, such as break‐
points, are not supported by crash.
crash does not provide pagination. However, by using the pipe symbol,
output may be sent to commands available from the shell. For example:
crash> ps | more
crash> ps | grep ioflush
SEE ALSOps(1), vmstat(1), ddb(4), pstat(8)HISTORY
The crash command appeared in NetBSD 6.0.
BSD March 7, 2009 BSD