sysctl and rsync question

[Kris Kennaway]

Marten Vijn wrote:
> Hi all, have two questions:
> 
> In sort:
> 
> 1. Which sysctl's can/should I change to prevent my backupserver (7.0
> BETA4) from rebooting by using rsync ?
> 
> 2. What tools are there to find out what causes the reboot? 

See the ZFS tuning guide on wiki.freebsd.org.

> I did not find any messages in /var/log/*, dmesg, vmstat and top  (dmesg
> below).

See the chapter on kernel debugging the developers handbook.  You have 
to enable crashdumps and/or DDB.

> I assume that it runs out ouf buffers.

Probably, the above will allow you to confirm and fix.

Kris