FreeBSD 6.0 panics - sbdrop

[Rutger Bevaart]

Maybe your reboots are related to a problem I had with several Dell  
1750's and 2850's.

I added:
> [rutger at darwin rutger]$ cat /boot/loader.conf
> debug.mpsafenet=0

to some of the affected systems and they have not crashed yet in  
about 8 days. Your dump seems to indicate a failure somewhere in  
netinet code, maybe it's locking related as well...

Met vriendelijke groet / Kind Regards,

Rutger Bevaart

illian.networks B.V.

> Hi,
>
> I've encountered a strange problem while using FreeBSD 6.0 for our  
> local mirror (mirror.math.uni-bielefeld.de) and thus is providing  
> access via ftp, http, rsync and cvsup (all local and remote).
> The system crashes periodically with a kernel panic (panic: sbdrop).
> The uptimes between two crashes are going from a few hours to a few  
> weeks.
>
> The system is a i386, Intel Pentium 4 based with 512MB ram and a  
> 3ware-7000 (twe) raid controller containig 1 raid 5 set with  
> approx. 1.9TB.
> The kernel is a GENERIC kernel without changes of the config.