My server gets kernel panic every 7th day
Greg 'groggy' Lehey
grog at FreeBSD.org
Sun Dec 19 14:38:04 PST 2004
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 at 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
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
See complete headers for address and phone numbers.
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