I have been experimenting with ZFS recently, and have been seeing the occasional reboot with the above error. A quick google shows that this is a known problem, but that it should go away if you increase kernel memory. I have done this, but I am still seeing the problem - and not uunder high load either. Is there anything else I can try to mitigate this ? I am running 7.0-RC1 from Jan 3rd at the moment.. cheers, -pcf.
> vm.kmem_size="512M" > vm.kmem_size_max="512M"I have similar to this in mine... vm.kmem_size=629145600 vm.kmem_size_max=629145600 which is about 600 meg - the machine has 2 gig of RAM.> vfs.zfs.prefetch_disable="1" > vfs.zfs.arc_max="150M" > kern.maxvnodes="400000"now these I havent got - I did see a reference to disabling the intent log, which is what I was about to try. I will give your settings a shot too.> Most of these settings came from various mailing list postings. It's > possible that some don't do anything useful, but I haven't had a zfs > related panic since.Worth a try - might see if I can find a way tro reliably trigger the opanic and then tyrn these bits back on one at a time too. thanks, -pete.
I have the following in /boot/loader.conf and it seems to be doing well for me on FreeBSD-i386 with 1G RAM. vm.kmem_size="512M" vm.kmem_size_max="512M" vfs.zfs.prefetch_disable="1" vfs.zfs.arc_max="150M" kern.maxvnodes="400000" Most of these settings came from various mailing list postings. It's possible that some don't do anything useful, but I haven't had a zfs related panic since. On Jan 7, 2008 4:00 AM, Pete French <petefrench@ticketswitch.com> wrote:> I have been experimenting with ZFS recently, and have been seeing the > occasional reboot with the above error. A quick google shows that this is > a known problem, but that it should go away if you increase kernel > memory. I have done this, but I am still seeing the problem - and not > uunder high load either. Is there anything else I can try to mitigate this ? > I am running 7.0-RC1 from Jan 3rd at the moment.. > > cheers, > > -pcf. > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" >