Date: Tue, 1 May 2001 15:45:51 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: Warner Losh <imp@harmony.village.org> Cc: doc@freebsd.org, bde@freebsd.org Subject: Re: ddb addition review request Message-ID: <Pine.BSF.4.21.0105011531140.32403-100000@besplex.bde.org> In-Reply-To: <200105010348.f413m4R56040@harmony.village.org>
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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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