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Man Pages


Manual Reference Pages  -  LINUX_KDUMP (1)

NAME

linux_kdump - display kernel trace data for Linux-compatability processes

CONTENTS

Synopsis
Description
See Also
Bugs
History

SYNOPSIS

linux_kdump [-dnlRT] [-f file] [-m maxdata] [-t [cnisuw]]

DESCRIPTION

The linux_kdump command displays the kernel trace files produced with ktrace(1) on Linux-compatability programs in human readable format. By default, the file ktrace.out in the current directory is displayed.

The options are as follows:
-d Display all numbers in decimal.
-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 linux_kdump tries to decode many system calls into a more human readable format. For example, ioctl(2) values are replaced with the macro name and errno values are replaced with the strerror(3) string. Suppressing 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 cnisuw
  See the -t option of ktrace(1).

SEE ALSO

ktrace(1)

BUGS

linux_kdump cannot distinguish between a ktrace(1) output file produced by a native binary and one from a Linux-mode binary. The same is true for kdump(1).

HISTORY

The linux_kdump command is closely derived from that in BSD 4.4 .
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