Date: Sun, 17 Nov 2002 19:36:28 -0600 From: Sean Kelly <smkelly@zombie.org> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: Jeff Roberson <jroberson@chesapeake.net>, arch@FreeBSD.ORG Subject: Re: Software Watchdog Message-ID: <20021118013628.GB90078@edgemaster.zombie.org> In-Reply-To: <5011.1037437534@critter.freebsd.dk> References: <20021115191632.U22491-100000@mail.chesapeake.net> <5011.1037437534@critter.freebsd.dk>
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On Sat, Nov 16, 2002 at 10:05:34AM +0100, Poul-Henning Kamp wrote: > In message <20021115191632.U22491-100000@mail.chesapeake.net>, Jeff Roberson wr > ites: > >Sean Kelly has implemented a software watchdog based on input from myself > >and Peter. This works through a simple watcdog daemon that checks in with > >the kernel every so often. The kernel complains via hardclock() if the > >watchdog times out. This will be very useful for debugging hard lockups > >because hardclock() comes in through a fast intr. There are few things > >that will stop hardclock() from firing. > > Does it have hooks for supporting hardware watchdogs ? Presently there are no hooks for hardware watchdogs. This is my first endeavor into FreeBSD kernel programming and I know little to nothing about hardware watchdogs. Given enough information, I'm willing to take a stab at it if it is seen as something worth having. -- Sean Kelly | PGP KeyID: 77042C7B smkelly@zombie.org | http://www.zombie.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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