3 rdbfs \- remote kernel debugging file system
26 a set of process files for debugging
27 a kernel over the serial line
34 file presented is just a copy of
38 It can usually be ignored, since
39 the debuggers open kernel
40 files directly rather than
42 .BI /proc/ n /text\fR.
44 Kernels can be remotely debugged only when they are
46 a textual debugging protocol over their serial lines.
49 .RB (control- t ", control-" t ", d)"
50 at the console will cause the kernel to enter
51 this mode when it `panics'.
54 causes the kernel to enter this mode immediately.
56 Because the debugging protocol is textual, a console
59 may be substituted for the serial device.
61 .B /sys/src/cmd/rdbfs.c
63 .B /sys/src/9/port/rdb.c