Here are some updates:
I was able to reproduce the panic by rsyncing big files and trying
bonnie++ test suggested in this thread.
Can you guys retry with this patch:
It's a hack, yes, but allows to mitigate the problem quite well. I'm
looking for a solution that can be used for 7.0 before we find a better
BTW. To use ZFS you _must_ increase vm.kmem_size/vm.kmem_size_max.
If you have the problem discussed here and you're using standard values,
please retry with vm.kmem_size/vm.kmem_size_max set to at least 600MB in
I'm not sure if it's not too late to ask re@ about increasing the
default kmem size at least on amd64. ~300MB we have there is silly
Pawel Jakub Dawidek http://www.wheel.pl
FreeBSD committer Am I Evil? Yes, I Am!