From owner-freebsd-doc  Mon Apr 30 22:47: 6 2001
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Date: Tue, 1 May 2001 15:45:51 +1000 (EST)
From: Bruce Evans <bde@zeta.org.au>
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To: Warner Losh <imp@harmony.village.org>
Cc: doc@freebsd.org, bde@freebsd.org
Subject: Re: ddb addition review request
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On Mon, 30 Apr 2001, Warner Losh wrote:

These comments incorporate 2 (?) spelling fixes pointed out by Dima (?).
I noticed one more and checked with ispell.

> Index: ddb.4
> ===================================================================
> RCS file: /home/imp/FreeBSD/CVS/src/share/man/man4/ddb.4,v
> retrieving revision 1.12
> diff -u -r1.12 ddb.4
> --- ddb.4	2001/03/09 03:07:53	1.12
> +++ ddb.4	2001/05/01 03:46:07
> @@ -522,6 +522,16 @@
>  .Sq Li :
>  and modifiers as described above.
>  .El
> +.Sh HINTS
> +If you have a machine with an ISA bus, then you can connect a pushbutton
> +between A01 and B01 (CHCHK# and GND).
> +Shorting thse two signals together causes an NMI, which 
            these
> +.Nm
> +will catch and dump you into the debugger.

Actually, the kernel will catch the NMI and "dump you into" (i.e., pass
control to) <.Nm> (if <.Nm> is configured).

> +Machines with outher buses, or other ways of generating an NMI can also
                 other                                            may (?)
> +provide a hardware solution to break into a hung machine.
                      ^^^^^^^^^^^^^^^^^ method for breaking (?)
> +Some bridge chipsets do not actually generate a NMI on CHCHK#, so your
                                                 an
> +milage may vary.
   mileage
>  .Sh SEE ALSO
>  .Xr gdb 1
>  .Sh HISTORY

Bruce


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