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KDUMP(1)                    NetBSD Reference Manual                   KDUMP(1)


NAME

     kdump - display kernel trace data


SYNOPSIS

     kdump [-dnlRT] [-e emulation] [-f file] [-m maxdata] [-t [cenis]]


DESCRIPTION

     kdump displays the kernel trace files produced with ktrace(1) in human
     readable format.  By default, the file ktrace.out in the current directo-
     ry is displayed.

     The options are as follows:

     -d          Display all numbers in decimal.

     -e emulation
                 If an emulation of a process is unknown, interpret system
                 call maps assuming the named emulation instead of default
                 "netbsd".

     -f file     Display the specified file instead of ktrace.out.

     -l          Loop reading the trace file, once the end-of-file is reached,
                 waiting for more data.

     -m maxdata  Display at most maxdata bytes when decoding I/O.

     -n          Suppress ad hoc translations.  Normally kdump tries to decode
                 many system calls into a more human readable format.  For ex-
                 ample, ioctl(2) values are replaced with the macro name and
                 errno values are replaced with the strerror(3) string.  Sup-
                 pressing this feature yields a more consistent output format
                 and is easily amenable to further processing.

     -R          Display relative timestamps (time since previous entry).

     -T          Display absolute timestamps for each entry (seconds since
                 epoch).

     -t cnis     See the -t option of ktrace(1).


SEE ALSO

     ktrace(1)


HISTORY

     The kdump command appears in 4.4BSD.

NetBSD 1.5.1                     June 6, 1993                                1