Re: Unkillable and runaway processes

Kenneth Vestergaard Schmidt wrote:

> Our ZFS testbed is experiencing some weird problems with rsync. We run a
> nightly backup of about 1.6 TB data (that's how much is stored, not how
> much is transferred), but after the initial sync I haven't been able to
> get the machine through one full cycle.
> 
> After many hours of rsyncing data from 50+ machines, suddenly one
> rsync-process will hang, spinning on the CPU.

I have a similar, but possibly unrelated problem: almost the same as 
yours (ZFS & rsync backups), except there's a kernel panic in 
zfs_reclaim instead of a hang. This is on an old P3/1GHz machine, 
running without debugging options.