Running rsnapshot via cron reboots the machine

David N davidn04 at
Wed Dec 17 03:07:23 PST 2008

2008/12/17 Mel <fbsd.questions at>:
> On Monday 15 December 2008 18:56:46 David N wrote:
>> Hi,
>> I have a machine
>> AMD Sepron LE-1150
>> 2x SATA 300GB
>> in a RAID 1 (gmirror).
>> 7.0-RELEASE-p2 AMD64 generic kernel
>> it was doing backups via bacula to an external disk
>> USB 2.0 SATA disk, and it was working well. (GLabel) /dev/ufs/BackupDisk
>> I changed to rsnapshot recently, with the External HDD in glabel +
>> gjournal (/dev/da0s1.journal -> /dev/ufs/BackupDisk) and it will
>> reboot the machine roughly 30 minutes after the rsnapshot starts via
>> CRON.
> Able to get any crash dumps? [1] I doubt it calls reboot system call after 30
> minutes and if it's a heating issue, then it would power down not reboot. So,
> kernel is probably panicing.
> [1]
> --
> Mel
> Problem with today's modular software: they start with the modules
>    and never get to the software part.
I found something in the vmcore.0

panic: Journal overflow (joffset=499758276096 active=498475869184
cpuid = 0
Uptime: 16h7m11s

I tried kgdb on on the vmcore but it didn't work, I had -p2 installed,
but compiled p6 so it might of overwrittin things in /usr/obj

[GDB will not be able to debug user-mode threads:
/usr/lib/ Undefined symbol "ps_pglobal_lookup"]
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This GDB was configured as "amd64-marcel-freebsd".
Cannot access memory at address 0x0

The journal was set to 2GB on the 400GB USB attached disk. (/dev/da0)

I just formatted the disk without gjournal and see how that goes. I
guess i can't use gjournal over USB? I have gjournal running on
another server (gmirror + gjournal) and i thrash it pretty hard
without any problems.

Has any new patches for gjournal been included in 7.1?

Thanks for the help
David N

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