ZFS kmem_map too small.

Claus Guttesen kometen at gmail.com
Sat Oct 6 06:52:39 PDT 2007


> > What I did was to rsync 200 FreeBSD src trees from one directory to
> > another on the same ZFS file system. It worked fine.
>
> It looks like most problems (including mine I sent you before) are when
> rsync (and possibly NFS?) are run over the network. How much kernel
> memory does a heavily loaded network stack (multiple parallel
> connections & TCP streams) consume? Just for the TCP send & receive
> buffers I'd guess at least something like 128K*number_of_connections.

In my case I rsync'ed both across the network and locally within one
zpool. Both times I got the 'kmem_map too small' error.

-- 
regards
Claus

When lenity and cruelty play for a kingdom,
the gentlest gamester is the soonest winner.

Shakespeare


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