Re: ZFS not caching right?

On 9/14/07, Brandon Weisz <lists_at_avioc.org> wrote:
> On Thu, 2007-09-13 at 22:25 +0100, Joao Barros wrote:
> > This happened 1 day after compiling new sources:
> > panic: kmem_malloc(90112): kmem_map too small: 329805824 total allocated
> > when writing through NFS.
> > Machine has 1GB of ram and:
> > vfs.zfs.arc_min: 16777216
> > vfs.zfs.arc_max: 251658240
> >
> > I hadn't had any panics with sources from August 16 but before your
> > recent changes vfs.zfs.arc_max was 167772160
> > kern.maxvnodes is not set to 50000 as recomended ( on purpose ) and is
> > currently at 52242 set by the system. Is 50000 still recomended after
> > your changes?
> >
>
> Just a "me too" -
>
> I am also seeing "kmem_map too small" panics on a amd64 NFS server with
> 1 GB ram after the recent zfs changes.  setting
> vm.kmem_size_max="402653184" seems to have stopped the panics, however
> this was not needed previously.

Hmm, it's solid for me. i386 with 1GB RAM and arc_max of 128MB
(instead of 256MB). maxvnodes is set to 50k and kmem is at its system
tuned default.

Uli