| CRASH(8) | System Manager's Manual | CRASH(8) | 
crash —
| crash | [ -w] [-Mcore] [-Nkernel] | 
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
    corecrash, and must be uncompressed.-N
    kernel-wThe 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
    breakpoints, 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
# echo ps | crash | grep '^[0-9]' | cut -c 30-46 | \ sed 's,^,bt/a ,' | crash
crash command appeared in NetBSD
  6.0.
crash command for the sparc port is unstable.
| March 22, 2019 | NetBSD 9.4 |