Date: Tue, 10 May 2005 04:30:15 +0100 From: RW <list-freebsd-2004@morbius.sent.com> To: freebsd-questions@freebsd.org Subject: Re: 5 day lockup on Densitron Message-ID: <200505100430.15798.list-freebsd-2004@morbius.sent.com> In-Reply-To: <20050507010038.GH9865@tikitechnologies.com> References: <5EEBE9C3C61D1142994C6B620C51E847110A73@depot.weblinkmo.com> <44hdhgh5nx.fsf@be-well.ilk.org> <20050507010038.GH9865@tikitechnologies.com>
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On Saturday 07 May 2005 02:00, Clifton Royston wrote: > What you describe > could conceivably be the result of a special counter or RTC chip > running as a "watchdog timer" with a count-down from boot time, and > generating some kind of special interrupt when that countdown reaches > 0. Watchdog devices are sometimes set up to require the application > software to "stroke" the timer periodically (reset it in software) with > the intent to force a reset of the system (usually a reboot) after > such-and-such a period of time if not stroked. Watchdog timeouts are typically a fraction of a minute, a 5 day watchdog timeout is very unlikely.
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