reproducible panic every day at 03:02, probably triggered by daily periodic scipts - help

[Anton Shterenlikht]

>From: Mark Felder <feld at FreeBSD.org>
>
>On Thu, Mar 6, 2014, at 2:59, Anton Shterenlikht wrote:
>> In my initial PR (sparc64 r261798),
>> 
>>  http://www.freebsd.org/cgi/query-pr.cgi?pr=187080
>> 
>> I said that rsync was triggering this panic.
>> While true, I now see that there's more to it.
>> I disabled the rsync, and the cron jobs.
>> Still I get exactly the same panic every
>> night at 03:02:
>> 
>> # grep Dumptime /var/crash/*
>> /var/crash/info.0:  Dumptime: Wed Feb 26 10:10:51 2014
>> /var/crash/info.1:  Dumptime: Thu Feb 27 03:02:14 2014
>> /var/crash/info.2:  Dumptime: Fri Feb 28 03:02:29 2014
>> /var/crash/info.3:  Dumptime: Sat Mar  1 03:02:25 2014
>> /var/crash/info.4:  Dumptime: Tue Mar  4 03:02:01 2014
>> /var/crash/info.5:  Dumptime: Wed Mar  5 03:02:05 2014
>> /var/crash/info.6:  Dumptime: Thu Mar  6 03:02:11 2014
>> /var/crash/info.last:  Dumptime: Thu Mar  6 03:02:11 2014
>> # 
>> 
>> This is likely triggered by one of
>> the daily periodic scipts,
>> after about 1 min from start:
>> 
>> # grep daily /etc/crontab
>> # Perform daily/weekly/monthly maintenance.
>> 1       3       *       *       *       root    periodic daily
>> #
>> 
>> but which one?
>> 
>
>Can you go into /etc/periodic/daily and execute those scripts one by
>one? You should be able to narrow down which one is the culprit.

unfortunately I cannot reproduce the panic
this way. What I did was:

# cd /etc/periodic/daily
# for file in `ls`
do
echo $file
./$file
done

I run it twice, I could see all scripts
executing one after another,
but no panic.
Perhaps something else is happening at
the same time as daily scripts?
But I cannot find what.

Thanks

Anton