Documentation/dev-tools/kgdb.rst

162 	kgdboc=[kms][[,]kbd][[,]serial_device][,baud]
171 -  kbd = Keyboard
238 	kgdboc=kbd,<serial_device>[,baud]
242 	kgdboc=kbd,ttyS0,115200
246 	kgdboc=kbd
250 	kgdboc=kms,kbd
254 	kgdboc=kms,kbd,ttyS0,115200
259    protocol. You must manually send a :kbd:`SysRq-G` unless you have a proxy
262    "human" console. The proxy can take care of sending the :kbd:`SysRq-G`
271 to issue a :kbd:`Sysrq` sequence and then type the letter :kbd:`g`. Then you
273 don't like this are to hack gdb to send the :kbd:`SysRq-G` for you as well as
405    manually; all involve using the :kbd:`SysRq-G`, which means you must have
414       Press: :kbd:`CTRL-A` :kbd:`f` :kbd:`g`
419       Press: :kbd:`CTRL-]`
423       Press: :kbd:`Enter` :kbd:`g`
454 	kgdboc=kbd
460 	echo kbd > /sys/module/kgdboc/parameters/kgdboc
464    manually; all involve using the :kbd:`SysRq-G`, which means you must have
473       Press and hold down: :kbd:`Alt`
475       Press and hold down: :kbd:`Fn`
477       Press and release the key with the label: :kbd:`SysRq`
479       Release: :kbd:`Fn`
481       Press and release: :kbd:`g`
483       Release: :kbd:`Alt`
487       Press and hold down: :kbd:`Alt`
489       Press and release the key with the label: :kbd:`SysRq`
491       Press and release: :kbd:`g`
493       Release: :kbd:`Alt`
535    using kgdbwait as a boot argument, via a :kbd:`SysRq-G`, or running the
545       Press: :kbd:`CTRL-A` :kbd:`f` :kbd:`g`
550       Press: :kbd:`CTRL-]`
554       Press: :kbd:`Enter` :kbd:`g`
582 to issue an other :kbd:`SysRq-G`. It is easy to create a simple entry point by
616      Now you must kill gdb. Typically you press :kbd:`CTRL-Z` and issue
885 switch to a text context when you are using ``kgdboc=kms,kbd``, provided