Date: Mon, 20 Dec 2004 00:32:27 +0100 From: Daniel Johansson <donnex@gmail.com> To: Ted Mittelstaedt <tedm@toybox.placo.com> Cc: questions@freebsd.org Subject: Re: My server gets kernel panic every 7th day Message-ID: <2a37e1ef041219153244c26d9e@mail.gmail.com> In-Reply-To: <LOBBIFDAGNMAMLGJJCKNMEMKEPAA.tedm@toybox.placo.com> References: <20041219223801.GG84787@wantadilla.lemis.com> <LOBBIFDAGNMAMLGJJCKNMEMKEPAA.tedm@toybox.placo.com>
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Yeah, thank you. I changed the cronjob file so that they run periodic weekly on diffrent days. So I hope I won't get any more panics now. I don't have the time or energy to bebug the kernel atm, maby later but thanks anyway. Anyone else uses jails and noticed the same behaviour? I think I'll do some more testing on a new box when I've got time to see if I can reproduce it there. On Sun, 19 Dec 2004 14:44:22 -0800, Ted Mittelstaedt <tedm@toybox.placo.com> wrote: > If I may interject, why should he bother? > > Seems to me his next step should be setting up a new server > with a fresh FreeBSD copy on it, duplicating the 3 jails, then > firing off the 4 periodics and seeing if that blows up. > > If so that is enough info to file a bug report, and he can > then simply adjust his script so that the periodics aren't all > run at the same time. If someone else wants to spend the time > researching this - like YOU for example - then great. > > From the Project's point of view, his problems aren't interesting > unless they can be reproduced - and from his point of view all he > wants to do is fix the problem - and he now knows how to do it. > (run the periodic weekly at different times) Grubbing around in > a dump traceback does not prove that a problem is reproducible. > > Ted Mittelstaedt > Author, The FreeBSD Corporate Networker's Guide. > > > -----Original Message----- > > From: owner-freebsd-questions@freebsd.org > > [mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Greg 'groggy' > > Lehey > > Sent: Sunday, December 19, 2004 2:38 PM > > To: Daniel Johansson > > Cc: FreeBSD Questions > > Subject: Re: My server gets kernel panic every 7th day > > > > > > On Sunday, 19 December 2004 at 23:35:18 +0100, Daniel Johansson wrote: > > > On Mon, 20 Dec 2004 08:59:19 +1030, Greg 'groggy' Lehey > > > <grog@freebsd.org> wrote: > > >> On Saturday, 18 December 2004 at 11:50:02 -0800, Kris Kennaway wrote: > > >>> On Sat, Dec 18, 2004 at 11:57:35AM +0100, Daniel Johansson wrote: > > >>>> Hi, i've had my server up for over a year now and it's been > > rock solid > > >>>> but for the latest weeks the server has rebooted evert Saturday at > > >>>> exact 04:19:57 because of a find command. I have no idea why and I've > > >>>> checked the cron log and I don't think any crontab is runned at that > > >>>> time. Not as far as I can see from the cron log. Anyway find > > makes the > > >>>> server get a kernel panic and it reboots. This is the fourth > > week in a > > >>>> row it happens and I've checked the hardware, no problems at all. > > >>> > > >>> How did you "check the hardware"? Hardware failure is by far the > > >>> most common cause of "strange panics under abnormal load [such as > > >>> when the weekly cron job runs]". > > >> > > >> If this panic occurs repeatedly under certain circumstances, it's > > >> probably not hardware. Anyway, there's not much point standing > > >> outside and scratching our heads. We have a facility for analysing > > >> this kind of problem: the processor dump and kernel debugger. > > > > > > Yeah, I want to say thank you for your help. I think I've been able to > > > reproduce the kernel panic now, finalay! > > > > > > On my server I run 3 jails and every night at 04:15 when it runs > > > periodic weekly it runs it in 3 jails + the host enviroment. This > > > seems to cause the kernel panic, I don't really know why yet. I can > > > run periodic weekly separatly in every jail + the host without kernel > > > panic but when I run it at the same time on all places it kernel > > > panics. > > > > What does the dump backtrace show? > > > > > It can still be the PSU, don't have any other atm to try with. I'll > > > do some more testing and see if I can get any more info. > > > > There's no point looking at the hardware until you've looked at the > > dump. > > > > Greg > > -- > > See complete headers for address and phone numbers. > > > >
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