1 .\" Copyright (c) 2004 Marcel Moolenaar
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35 .Op Fl a | Fl f | Fl fullname
40 .Op Fl c Ar core | Fl n Ar dumpnr | Fl r Ar device
41 .Op Ar kernel Op Ar core
45 utility is a debugger based on
47 that allows debugging of kernel core files.
49 The options are as follows:
50 .Bl -tag -width ".Fl d Ar crashdir"
52 Increase the annotation level.
53 An annotation level of 1 features the historical
57 This is useful when running
64 options are supported for backward compatibility as well.
66 Suppress printing of the banner when the debugger starts.
69 form is supported for compatibility as well.
73 Opens kmem-based targets in read-write mode.
74 (This is identical to what
76 used to do in previous
82 instead of the default,
84 to locate kernel core dump files in.
87 plus the dump number will be appended to determine
88 the actual dump file name.
92 as the core dump file.
94 Use the kernel core dump file numbered
102 to for a remote debugging session.
109 options are mutually exclusive.
111 Optionally, the name of the kernel symbol file and
112 the name of the core dump file can be supplied on the
113 command-line as positional arguments.
114 If no kernel symbol file name has been given, the
115 symbol file of the currently running kernel will be
117 If no core dump file has been specified through either
118 of the options or the last command-line argument,
120 will be opened to allow debugging the currently running
123 .Bl -tag -width ".Pa /var/crash"
125 Default memory image to open if no core dump file
128 Default directory to locate kernel core dump files.
135 utility first appeared in its current form in