Annotation of src/usr.bin/kdump/kdump.1, Revision 1.33
1.33 ! tedu 1: .\" $OpenBSD: kdump.1,v 1.32 2016/07/18 09:36:50 guenther Exp $
1.7 aaron 2: .\"
1.1 deraadt 3: .\" Copyright (c) 1990, 1993
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1.10 millert 14: .\" 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 15: .\" may be used to endorse or promote products derived from this software
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1.33 ! tedu 32: .Dd $Mdocdate: July 18 2016 $
1.1 deraadt 33: .Dt KDUMP 1
1.5 aaron 34: .Os
1.1 deraadt 35: .Sh NAME
36: .Nm kdump
37: .Nd display kernel trace data
38: .Sh SYNOPSIS
39: .Nm kdump
1.24 guenther 40: .Op Fl dHlnRTXx
1.1 deraadt 41: .Op Fl f Ar file
42: .Op Fl m Ar maxdata
1.8 deraadt 43: .Op Fl p Ar pid
1.32 guenther 44: .Op Fl t Op Cm cinpstuxX+
1.1 deraadt 45: .Sh DESCRIPTION
1.6 aaron 46: .Nm
1.1 deraadt 47: displays the kernel trace files produced with
48: .Xr ktrace 1
1.4 aaron 49: in human-readable format.
1.1 deraadt 50: By default, the file
51: .Pa ktrace.out
1.9 deraadt 52: in the current directory is displayed, unless overridden by the
1.6 aaron 53: .Fl f
54: option.
1.1 deraadt 55: .Pp
56: The options are as follows:
1.6 aaron 57: .Bl -tag -width Ds
1.1 deraadt 58: .It Fl d
59: Display all numbers in decimal.
1.6 aaron 60: By default, values are printed out in hexadecimal.
1.5 aaron 61: .It Fl f Ar file
1.1 deraadt 62: Display the specified file instead of
63: .Pa ktrace.out .
1.33 ! tedu 64: Specifying
! 65: .Sq -
! 66: will read from standard input.
1.22 mikeb 67: .It Fl H
68: Display thread identifiers.
1.1 deraadt 69: .It Fl l
70: Loop reading the trace file, once the end-of-file is reached, waiting for
71: more data.
1.5 aaron 72: .It Fl m Ar maxdata
1.1 deraadt 73: Display at most
74: .Ar maxdata
1.12 jmc 75: bytes when decoding I/O.
1.1 deraadt 76: .It Fl n
77: Suppress ad hoc translations.
78: Normally
1.6 aaron 79: .Nm
1.4 aaron 80: tries to decode many system calls into a more human-readable format.
1.1 deraadt 81: For example,
82: .Xr ioctl 2
83: values are replaced with the macro name and
84: .Va errno
85: values are replaced with the
86: .Xr strerror 3
87: string.
88: Suppressing this feature yields a more consistent output format and is
89: easily amenable to further processing.
1.8 deraadt 90: .It Fl p Ar pid
91: Show output only for the
92: .Ar pid
93: specified.
1.1 deraadt 94: .It Fl R
95: Display relative timestamps (time since previous entry).
96: .It Fl T
1.15 jmc 97: Display absolute timestamps for each entry (seconds since the Epoch).
1.31 tedu 98: .It Fl TR
99: If both options are specified, display timestamps relative to trace start.
1.32 guenther 100: .It Fl t Op Cm cinpstuxX+
1.14 jmc 101: Selects which tracepoints to display.
102: See the
1.1 deraadt 103: .Fl t
104: option of
1.9 deraadt 105: .Xr ktrace 1
1.11 jmc 106: for the definitions of the flags.
1.14 jmc 107: .It Fl X
108: Display I/O data with hexadecimal data and printable ASCII characters
109: side by side.
1.13 tedu 110: .It Fl x
111: Display I/O data in hexadecimal.
1.1 deraadt 112: .El
1.6 aaron 113: .Sh FILES
114: .Bl -tag -width ktrace.out -compact
115: .It Pa ktrace.out
116: default ktrace dump file
117: .El
1.1 deraadt 118: .Sh SEE ALSO
119: .Xr ktrace 1
120: .Sh HISTORY
121: The
1.6 aaron 122: .Nm
1.4 aaron 123: command appeared in
1.1 deraadt 124: .Bx 4.4 .
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