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: http://people.freebsd.org/~pjd/patches/vm_kern.c.2.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 fix. 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 /boot/loader.conf. I'm not sure if it's not too late to ask re_at_ about increasing the default kmem size at least on amd64. ~300MB we have there is silly small. -- Pawel Jakub Dawidek http://www.wheel.pl pjd_at_FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am!
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