Date: Mon, 18 May 1998 03:44:36 +1000 From: Bruce Evans <bde@zeta.org.au> To: pst@juniper.net, regnauld@deepo.prosa.dk Cc: current@FreeBSD.ORG, julian@whistle.com, scrappy@hub.org Subject: Re: Serial console, system hangs and DDB... Message-ID: <199805171744.DAA08122@godzilla.zeta.org.au>
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>There already is such a thing -- it's called "BREAK_TO_DEBUGGER". > >You need to send a <break> indication down the serial line to the target >machine. The ~# that you're probably sending to your solaris machines >is actually getting translated by tip(1) into a break signal. It is fairly broken, however. It only works if interrupts are enabled on the serial port for the console, and interrupts are only enabled if a process (e.g., getty or a shell) has the console open. This makes it useless for debugging bootstraps, reboots, and serial ports with broken interrupts. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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