Date: Mon, 9 Sep 2002 16:41:08 +0200 From: Hanspeter Roth <hanspeter_roth@hotmail.com> To: freebsd-hackers@FreeBSD.ORG Subject: Re: interrupting target kernel using single sio Message-ID: <20020909164108.A12878@gicco.cablecom.ch> In-Reply-To: <Pine.BSF.4.21.0209090448190.51214-100000@InterJet.elischer.org>; from julian@elischer.org on Mon, Sep 09, 2002 at 04:52:07AM -0700 References: <20020909112248.A613@gicco.cablecom.ch> <Pine.BSF.4.21.0209090448190.51214-100000@InterJet.elischer.org>
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On Sep 09 at 04:52, Julian Elischer spoke:
> there is the following option:
> # Options for serial drivers that support consoles (only for sio now):
> options BREAK_TO_DEBUGGER #a BREAK on a comconsole goes to
> #DDB, if available.
> it isdangerous because rebooting the local machine can en up sending a break
> to the remote machine.
I also have:
options ALT_BREAK_TO_DEBUGGER
I hope it doesn't disturb.
Is that to say rebooting the machine where I want to run gdb?
I've rebooted this machine and nothing happened.
Is that to say that the target machine ignores the break on the sio?
stty values are:
speed 9600 baud; 0 rows; 0 columns;
lflags: -icanon -isig -iexten -echo -echoe -echok -echoke -echonl
-echoctl -echoprt -altwerase -noflsh -tostop -flusho -pendin
-nokerninfo -extproc
iflags: -istrip -icrnl -inlcr -igncr -ixon -ixoff -ixany -imaxbel -ignbrk
-brkint -inpck -ignpar -parmrk
oflags: -opost -onlcr -ocrnl -oxtabs -onocr -onlret
cflags: cread cs8 -parenb -parodd hupcl -clocal -cstopb -crtscts -dsrflow
-dtrflow -mdmbuf
cchars: discard = ^O; dsusp = ^Y; eof = ^D; eol = <undef>;
eol2 = <undef>; erase = ^?; erase2 = ^H; intr = ^C; kill = ^U;
lnext = ^V; min = 1; quit = ^\; reprint = ^R; start = ^Q;
status = ^T; stop = ^S; susp = ^Z; time = 0; werase = ^W;
I tried to set brkint but after examining it again it is still
cleared.
Is the serial port bogus or is the serial cable an incomplete
implementation?
-Hanspeter
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