Date: Thu, 17 Jun 1999 21:16:55 -0500 From: Dan Nelson <dnelson@emsphone.com> To: Greg Lehey <grog@lemis.com> Cc: "Ronald F. Guilmette" <rfg@monkeys.com>, Thomas David Rivers <rivers@dignus.com>, mistwolf@ethereal.net, questions@FreeBSD.ORG Subject: Re: A suggested kernel enhancement relating to kernel panics. Message-ID: <19990617211655.A9746@dan.emsphone.com> In-Reply-To: <19990618100818.P9893@freebie.lemis.com>; from "Greg Lehey" on Fri Jun 18 10:08:19 GMT 1999 References: <19990617174029.B7287@dan.emsphone.com> <28890.929659712@monkeys.com> <19990618100818.P9893@freebie.lemis.com>
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In the last episode (Jun 18), Greg Lehey said: > >> When savecore saves a core, it logs the panic string via syslog: > >> > >> if (panicstr) > >> syslog(LOG_ALERT, "reboot after panic: %s", panic_mesg); > >> else > >> syslog(LOG_ALERT, "reboot"); > >> > >> So it's in /var/log/messages too. > > You're assuming that syslog is still running. We're in a panic > situation here. savecore is run from /etc/rc. Assuming a core was dumped on panic, the message will get logged on the next reboot. > > Well, I am getting sudden/unexpected reboots and this has happened > > several times now. Each time I look in /var/log/messages and there > > is NOTHING there... > > That's normal. When you panic, you stop writing to disk (except for > the dump). Maybe he's not panicing then. I've had my BSD box do a spontaneous reboot on me once or twice. This kind of crash is mighty hard to debug though, since it doesn't leave anything to debug :) -Dan Nelson dnelson@emsphone.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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